Adware.Gexin.9072

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) a####.b####.qq.com:8012
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) gs.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) za-fin-####.oss-cn-####.aliy####.com:80
TCP(HTTP/1.1) 1####.254.116.117:80
TCP(TLS/1.0) dian####.zho####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) sensor####.zho####.com:443
TCP(TLS/1.0) st####.zho####.com:443
TCP(TLS/1.0) s####.tc.qq.com:443
TCP(TLS/1.0) fin####.zho####.com:443
TCP(TLS/1.0) 1####.217.17.110:443
TCP(TLS/1.0) p####.tc.qq.com:443
TCP(TLS/1.0) a####.zho####.com:443
TCP t####.qq.com:80
TCP t####.qq.com:14000

DNS requests:

a####.b####.qq.com
a####.exc.mob.com
a####.zho####.com
aexcep####.b####.qq.com
and####.b####.qq.com
and####.cli####.go####.com
b####.g####.com
c####.g####.com
c####.g####.com
cms.zho####.com
dian####.zho####.com
fin####.zho####.com
gs.g####.com
mt####.go####.com
pi####.qq.com
qzones####.g####.cn
r####.wx.qq.com
sdk.o####.p####.####.com
sensor####.zho####.com
st####.zho####.com
t####.qq.com
za-fin-####.oss-cn-####.aliy####.com

HTTP GET requests:

za-fin-####.oss-cn-####.aliy####.com/noah/201809/NYDDXJD2018092720522579...
za-fin-####.oss-cn-####.aliy####.com/noah/201810/nullnull201810092000045...
za-fin-####.oss-cn-####.aliy####.com/noah/201812/NYDDXJD2018122911555664...
za-fin-####.oss-cn-####.aliy####.com/noah/201812/NYDDXJD2018122911555668...
za-fin-####.oss-cn-####.aliy####.com/noah/201812/NYDDXJDnull201812180945...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019011018305299...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019011018305300...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019011018305303...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019011018305304...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019011018305306...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019013011131862...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019013011131866...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJD2019013011131868...
za-fin-####.oss-cn-####.aliy####.com/noah/201901/NYDDXJDnull201901281427...
za-fin-####.oss-cn-####.aliy####.com/noah/201902/NYDDXJD2019022012335307...
za-fin-####.oss-cn-####.aliy####.com/noah/201902/NYDDXJD2019022210473890...
za-fin-####.oss-cn-####.aliy####.com/noah/201902/NYDDXJDnull201902121833...
za-fin-####.oss-cn-####.aliy####.com/noah/201902/NYDDXJDnull201902191835...

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async
c####.g####.com/api.php?format=####&t=####
gs.g####.com/encryption/key/fetch
gs.g####.com/geshu/sdkStatistics/bd
gs.g####.com/geshu/sdkStatistics/ubi
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/-893332057
/data/data/####/.duid
/data/data/####/.lock
/data/data/####/.tpns.service.xml.xml
/data/data/####/.tpns.settings.xml.xml
/data/data/####/.vpl_lock
/data/data/####/2VCXtt_OIPBNpmKPkiM3HWoOUUI.907676591.tmp
/data/data/####/53zXv88X2ib-tWLz10K8BjcaxVg.-1041637629.tmp
/data/data/####/72_g6RVB2eFm-rvSS-WCeST6CT4.-740870324.tmp
/data/data/####/ConfigManager.config.xml
/data/data/####/EbJY-F1A7_fyfBkpBnXbFgKaIJU.-228638801.tmp
/data/data/####/Ftny4w722VH83W8E1383yjlCqBE.-1775238278.tmp
/data/data/####/IBpYGaPw7G_8OfzYPvUfTcWrm8I.-1516804363.tmp
/data/data/####/KJ-7ucd_d1zLndqOwdGWA4NeNxc.1668904710.tmp
/data/data/####/KtnkLorSKrvRXDDXAlfcWQdlF0I.-1013985252.tmp
/data/data/####/LNaOXzJe_k9c-IScUgfBPAqFKlg.-824345874.tmp
/data/data/####/T9mnhxkvv1ufwzbN98-8WKUTQ1o.2126752314.tmp
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/VsydE4KQeMwgStdmYMVy-_g_L44.1043714915.tmp
/data/data/####/YAL6YqEaFc3o-HrGa8eo6yX9e9s.52098390.tmp
/data/data/####/_nCaIYiK8-312Tzmk_3C7TAGMnQ.-126904289.tmp
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.zhonglian.diandian-journal
/data/data/####/com.zhonglian.diandian_preferences.xml
/data/data/####/dBfPa__lOnPxOtSqVz7ZOtkgySg.821171880.tmp
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/device_id.xml
/data/data/####/domain_1
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/getui_sp.xml
/data/data/####/gqIm62RoIKOJGvneuZwzXKk6loQ.2063341584.tmp
/data/data/####/gtc.db-journal
/data/data/####/ias.db-journal
/data/data/####/ias_sp.xml
/data/data/####/index
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.5.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/nN00FmseeWaFQG-Z4xNsJ9bBpVA.-1928810804.tmp
/data/data/####/native_record_lock
/data/data/####/oGyNAnKmjva4teLGJbdffiPoKZA.-1368418340.tmp
/data/data/####/pri_tencent_analysis.db_com.zhonglian.diandian-journal
/data/data/####/security_info
/data/data/####/sensorsdata.xml
/data/data/####/share_data.xml
/data/data/####/share_name.xml
/data/data/####/shield_sdk.xml
/data/data/####/sveU8IOfinjZu3rb1wwkDPQBvs0.-615453981.tmp
/data/data/####/tencent_analysis.db_com.zhonglian.diandian-journal
/data/data/####/tpush.shareprefs.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/wpr-A_u2GYXWm02njAt8y1WxnkI.363306313.tmp
/data/media/####/.artc_lock
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.wkl
/data/media/####/com.zhonglian.diandian_.db

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/lib/libxguardian.so <Package>,2100261981;<Package>,2100261981; 55189 203.205.128.130 [{"idx":0,"ts":%d,"et":2000,"si":0,"ui":"<IMEI>","ky":"Axg%lu","mid":"d85f2c2448e56084e2d6dd2544555a837adbb20e","ev":{"ov":"18","sr":"600*752","md":"<System Property>","lg":"en","sv":"3.23","mf":"unknown","apn":"%s"}}] 0 18
<Package Folder>/lib/libxguardian.so <Package>,2100261981;<Package>,2100261981; 55727 203.205.128.130 [{"idx":0,"ts":%d,"et":2000,"si":0,"ui":"<IMEI>","ky":"Axg%lu","mid":"d85f2c2448e56084e2d6dd2544555a837adbb20e","ev":{"ov":"18","sr":"600*752","md":"<System Property>","lg":"en","sv":"3.23","mf":"unknown","apn":"%s"}}] 0 18
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.5.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
sh <Package Folder>/lib/libxguardian.so <Package>,2100261981;<Package>,2100261981; 55727 203.205.128.130 [{ idx :0, ts :%d, et :2000, si :0, ui : <IMEI> , ky : Axg%lu , mid : d85f2c2448e56084e2d6dd2544555a837adbb20e , ev :{ ov : 18 , sr : 600*752 , md : <System Property> , lg : en , sv : 3.23 , mf : unknown , apn : %s }}] 0 18

Loads the following dynamic libraries:

Bugly
MtaNativeCrash_v2
getuiext3
gifimage
imagepipeline
libnfix
libshella-2.9.0.5
libufix
nfix
tpnsSecurity
ufix

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CFB8-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1PADDING
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

AES-CFB8-NoPadding
AES-ECB-NoPadding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
DES-ECB-PKCS5Padding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about APN settings.

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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