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Trojan.Siggen18.1672

Added to the Dr.Web virus database: 2022-06-06

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Kryptex' = '"%LOCALAPPDATA%\Programs\kryptex-app\Kryptex.exe" --from-startup�'
Creates or modifies the following files
  • <SYSTEM32>\tasks\kryptexelevationfromstartup
  • <SYSTEM32>\tasks\kryptexelevation
Malicious functions
Injects code into
the following user processes:
  • kryptex.exe
Modifies file system
Creates the following files
  • %TEMP%\nsba544.tmp\system.dll
  • %TEMP%\nsba544.tmp\winshell.dll
  • %APPDATA%\microsoft\windows\start menu\programs\kryptex.lnk
  • %LOCALAPPDATA%\programs\kryptex-app\uninstall kryptex.exe
  • %LOCALAPPDATA%\kryptex-app-updater\installer.exe
  • %LOCALAPPDATA%\programs\kryptex-app\vulkan-1.dll
  • %LOCALAPPDATA%\programs\kryptex-app\vk_swiftshader.dll
  • %LOCALAPPDATA%\programs\kryptex-app\swiftshader\libglesv2.dll
  • %LOCALAPPDATA%\programs\kryptex-app\swiftshader\libegl.dll
  • %LOCALAPPDATA%\programs\kryptex-app\resources\elevate.exe
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\pagefile\build\release\pagefile.exe
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\nvapi\build\release\nvapi.exe
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\build\release\adlinfo.exe
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\win\x64\7za.exe
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\win\arm64\7za.exe
  • %LOCALAPPDATA%\programs\kryptex-app\libglesv2.dll
  • %LOCALAPPDATA%\programs\kryptex-app\libegl.dll
  • %LOCALAPPDATA%\programs\kryptex-app\kryptex.exe
  • %LOCALAPPDATA%\programs\kryptex-app\ffmpeg.dll
  • %LOCALAPPDATA%\programs\kryptex-app\d3dcompiler_47.dll
  • %LOCALAPPDATA%\programs\kryptex-app\vk_swiftshader_icd.json
  • %LOCALAPPDATA%\programs\kryptex-app\v8_context_snapshot.bin
  • %LOCALAPPDATA%\programs\kryptex-app\snapshot_blob.bin
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\pagefile\package.json
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\pagefile\index.js
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\nvapi\package.json
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\nvapi\index.js
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\package.json
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\index.js
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\package.json
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\index.js
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\license.txt
  • %HOMEPATH%\desktop\kryptex.lnk
  • %APPDATA%\kryptex\crashpad\settings.dat
  • %APPDATA%\kryptex\benchmark.json.4150517094
  • %APPDATA%\kryptex\cache.json.3992176186
  • %APPDATA%\kryptex\config.json.3415422418
  • %TEMP%\0c7f7b7f-34ac-4cf4-9997-e5a4e207cd90.tmp.ico
  • %APPDATA%\kryptex\task.xml
  • %TEMP%\c393109c-fa05-4475-912a-5a790aeaaaa1.tmp.node
  • %TEMP%\0311faa3-d734-4ac5-8e74-657797d06367.tmp.node
  • %TEMP%\f78e6f5d-199e-45bb-a5cd-c7b0ba16e098.tmp.node
  • %APPDATA%\kryptex\8f3992cb-b6e2-48c2-a0df-b6a061b53bfd.tmp
  • %APPDATA%\kryptex\cache\f_000001
  • %APPDATA%\kryptex\dictionaries\en-us-9-0.bdic
  • %APPDATA%\kryptex\0f6010be-48db-497a-a728-02ee2e7a35ea.tmp
  • %APPDATA%\kryptex\cache\data_3
  • %APPDATA%\kryptex\cache\data_2
  • %APPDATA%\kryptex\cache\data_0
  • %LOCALAPPDATA%\programs\kryptex-app\locales\pt-pt.pak
  • %APPDATA%\kryptex\cache\index
  • %APPDATA%\kryptex\code cache\wasm\index-dir\temp-index
  • %APPDATA%\kryptex\code cache\js\index-dir\temp-index
  • %APPDATA%\kryptex\sentry\scope_v2.json
  • %APPDATA%\kryptex\gpucache\data_3
  • %APPDATA%\kryptex\gpucache\data_2
  • %APPDATA%\kryptex\gpucache\data_1
  • %APPDATA%\kryptex\gpucache\data_0
  • %APPDATA%\kryptex\gpucache\index
  • %APPDATA%\kryptex\local storage\leveldb\log
  • %APPDATA%\kryptex\local storage\leveldb\000001.dbtmp
  • %APPDATA%\kryptex\local storage\leveldb\manifest-000001
  • %APPDATA%\kryptex\code cache\wasm\index
  • %APPDATA%\kryptex\code cache\js\index
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\7zip-bin\7x.sh
  • %LOCALAPPDATA%\programs\kryptex-app\resources\app.asar
  • %LOCALAPPDATA%\programs\kryptex-app\resources.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\fr.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\fil.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\fi.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\fa.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\et.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\es.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\es-419.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\en-us.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\en-gb.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\el.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\de.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\da.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\cs.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ca.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\bn.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\bg.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ar.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\am.pak
  • %LOCALAPPDATA%\programs\kryptex-app\licenses.chromium.html
  • %LOCALAPPDATA%\programs\kryptex-app\license.electron.txt
  • %LOCALAPPDATA%\programs\kryptex-app\icudtl.dat
  • %LOCALAPPDATA%\programs\kryptex-app\chrome_200_percent.pak
  • %LOCALAPPDATA%\programs\kryptex-app\chrome_100_percent.pak
  • %TEMP%\nsba544.tmp\nsis7z.dll
  • %TEMP%\nsba544.tmp\app-64.7z
  • %TEMP%\nsba544.tmp\nsprocess.dll
  • %TEMP%\nsba544.tmp\spiderbanner.dll
  • %TEMP%\nsba544.tmp\stdutils.dll
  • %LOCALAPPDATA%\programs\kryptex-app\locales\he.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\hi.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\gu.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\hr.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\zh-tw.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\hu.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\zh-cn.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\vi.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\uk.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\tr.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\th.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\te.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ta.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\sw.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\sv.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\sr.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\sl.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\sk.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ru.pak
  • %APPDATA%\kryptex\cache\data_1
  • %APPDATA%\kryptex\fontlookuptablecache\font_unique_name_table.pb
  • %LOCALAPPDATA%\programs\kryptex-app\locales\pt-br.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\pl.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\nl.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\nb.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ms.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\mr.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ml.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\lv.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\lt.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ko.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\kn.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ja.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\it.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\id.pak
  • %LOCALAPPDATA%\programs\kryptex-app\locales\ro.pak
  • %APPDATA%\kryptex\e8318b7b-bf92-47a1-bf93-fcd706a3c73c.tmp
Deletes the following files
  • %TEMP%\nsba544.tmp\app-64.7z
  • %TEMP%\nsba544.tmp\nsis7z.dll
  • %TEMP%\nsba544.tmp\nsprocess.dll
  • %TEMP%\nsba544.tmp\spiderbanner.dll
  • %TEMP%\nsba544.tmp\stdutils.dll
  • %TEMP%\nsba544.tmp\system.dll
  • %TEMP%\nsba544.tmp\winshell.dll
  • %APPDATA%\kryptex\network persistent state~rf122339.tmp
Moves the following files
  • from %APPDATA%\kryptex\local storage\leveldb\000001.dbtmp to %APPDATA%\kryptex\local storage\leveldb\current
  • from %APPDATA%\kryptex\code cache\js\index-dir\temp-index to %APPDATA%\kryptex\code cache\js\index-dir\the-real-index
  • from %APPDATA%\kryptex\code cache\wasm\index-dir\temp-index to %APPDATA%\kryptex\code cache\wasm\index-dir\the-real-index
  • from %APPDATA%\kryptex\0f6010be-48db-497a-a728-02ee2e7a35ea.tmp to %APPDATA%\kryptex\preferences
  • from %APPDATA%\kryptex\8f3992cb-b6e2-48c2-a0df-b6a061b53bfd.tmp to %APPDATA%\kryptex\network persistent state
  • from %APPDATA%\kryptex\config.json.3415422418 to %APPDATA%\kryptex\config.json
  • from %APPDATA%\kryptex\benchmark.json.4150517094 to %APPDATA%\kryptex\benchmark.json
  • from %APPDATA%\kryptex\cache.json.3992176186 to %APPDATA%\kryptex\cache.json
  • from %APPDATA%\kryptex\network persistent state to %APPDATA%\kryptex\network persistent state~rf122339.tmp
Substitutes the following files
  • %APPDATA%\kryptex\network persistent state
Network activity
Connects to
  • 're####ctor.gvt1.com':443
  • 'r1######5hnednss.gvt1.com':443
  • 'se#####app.kryptex.org':443
  • 'microsoft.com':80
TCP
HTTP GET requests
  • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
Other
  • 're####ctor.gvt1.com':443
  • 'r1######5hnednss.gvt1.com':443
  • 'se#####app.kryptex.org':443
UDP
  • DNS ASK re####ctor.gvt1.com
  • DNS ASK r1######5hnednss.gvt1.com
  • DNS ASK se#####app.kryptex.org
  • DNS ASK microsoft.com
Miscellaneous
Searches for the following windows
  • ClassName: '#32770' WindowName: ''
  • ClassName: 'Chrome_MessageWindow' WindowName: '%APPDATA%\Kryptex'
Creates and executes the following
  • '%LOCALAPPDATA%\programs\kryptex-app\kryptex.exe'
  • '%LOCALAPPDATA%\programs\kryptex-app\kryptex.exe' --type=crashpad-handler --user-data-dir=%APPDATA%\Kryptex /prefetch:7 --no-rate-limit --monitor-self-annotation=ptype=crashpad-handler --database=%APPDATA%\Kryptex\Crashpad --url=https://sentry...
  • '%LOCALAPPDATA%\programs\kryptex-app\kryptex.exe' --type=gpu-process --field-trial-handle=1120,2935260206224243548,3469388217530433355,131072 --enable-features=WebComponentsV0Enabled --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSi...
  • '%LOCALAPPDATA%\programs\kryptex-app\kryptex.exe' --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1120,2935260206224243548,3469388217530433355,131072 --enable-features=WebComponentsV0Enabled --disable-featur...
  • '%LOCALAPPDATA%\programs\kryptex-app\kryptex.exe' --type=renderer --field-trial-handle=1120,2935260206224243548,3469388217530433355,131072 --enable-features=WebComponentsV0Enabled --disable-features=CookiesWithoutSameSiteMustBeSecure,SameSiteB...
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\build\release\adlinfo.exe' setPageSize 2
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\pagefile\build\release\pagefile.exe' 16 16
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\build\release\adlinfo.exe'
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\build\release\adlinfo.exe' setPageSize 2' (with hidden window)
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\pagefile\build\release\pagefile.exe' 16 16' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' logicaldisk where Caption='C:' get FreeSpace /value' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' pagefile get AllocatedBaseSize /value' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' os get SerialNumber /value' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' os get TotalVirtualMemorySize /value' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "chcp"' (with hidden window)
  • '<SYSTEM32>\reg.exe' query HKLM\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000 /v RadeonSoftwareVersion' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDelay /t REG_DWORD /d 0x14 /f"' (with hidden window)
  • '%LOCALAPPDATA%\programs\kryptex-app\resources\app.asar.unpacked\node_modules\kryptex-backend\node_modules\amd-binding\build\release\adlinfo.exe' ' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' os get Caption /value' (with hidden window)
  • '<SYSTEM32>\reg.exe' query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AMD Catalyst Install Manager" /v DisplayVersion' (with hidden window)
  • '<SYSTEM32>\wbem\wmic.exe' os get locale' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "schtasks /Create /f /tn "KryptexElevation" /xml task.xml"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "schtasks /Create /f /tn "KryptexElevationFromStartup" /xml task.xml"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "wmic path Win32_NetworkAdapter where "PNPDeviceID like '%%%%PCI%%%%' AND NetConnectionStatus=2 AND AdapterTypeID='0'" get MacAddress"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /d /s /c "reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDdiDelay /t REG_DWORD /d 0xa /f"' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /d /s /c "schtasks /Create /f /tn "KryptexElevationFromStartup" /xml task.xml"
  • '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDelay /t REG_DWORD /d 0x14 /f
  • '<SYSTEM32>\cmd.exe' /d /s /c "reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDelay /t REG_DWORD /d 0x14 /f"
  • '<SYSTEM32>\wbem\wmic.exe' logicaldisk where Caption='C:' get FreeSpace /value
  • '<SYSTEM32>\wbem\wmic.exe' pagefile get AllocatedBaseSize /value
  • '<SYSTEM32>\wbem\wmic.exe' path Win32_NetworkAdapter where "PNPDeviceID like '%%%%PCI%%%%' AND NetConnectionStatus=2 AND AdapterTypeID='0'" get MacAddress
  • '<SYSTEM32>\cmd.exe' /d /s /c "wmic path Win32_NetworkAdapter where "PNPDeviceID like '%%%%PCI%%%%' AND NetConnectionStatus=2 AND AdapterTypeID='0'" get MacAddress"
  • '<SYSTEM32>\wbem\wmic.exe' os get TotalVirtualMemorySize /value
  • '<SYSTEM32>\wbem\wmic.exe' os get SerialNumber /value
  • '<SYSTEM32>\chcp.com'
  • '<SYSTEM32>\wbem\wmic.exe' os get Caption /value
  • '<SYSTEM32>\cmd.exe' /d /s /c "chcp"
  • '<SYSTEM32>\reg.exe' query HKLM\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000 /v RadeonSoftwareVersion
  • '<SYSTEM32>\reg.exe' query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AMD Catalyst Install Manager" /v DisplayVersion
  • '<SYSTEM32>\wbem\wmic.exe' os get locale
  • '<SYSTEM32>\schtasks.exe' /Create /f /tn "KryptexElevation" /xml task.xml
  • '<SYSTEM32>\cmd.exe' /d /s /c "schtasks /Create /f /tn "KryptexElevation" /xml task.xml"
  • '<SYSTEM32>\schtasks.exe' /Create /f /tn "KryptexElevationFromStartup" /xml task.xml
  • '<SYSTEM32>\cmd.exe' /d /s /c "reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDdiDelay /t REG_DWORD /d 0xa /f"
  • '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers /v TdrDdiDelay /t REG_DWORD /d 0xa /f

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