Adware.Gexin.4448

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

TCP(14:28:42&crc=3b92cbd2 HTTP/1.1) a-padn-####.pi####.com.cn:80
UDP(DNS) <Google DNS>
TCP(HTTP/1.1) 1####.250.48.9:80
TCP(HTTP/1.1) padn-ac####.pi####.com.cn:80
TCP(HTTP/1.1) pus####.pi####.com.cn:3000
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) 39.1####.227.225:80
TCP(HTTP/1.1) s####.magicwi####.cn:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) free####.pi####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(TLS/1.0) m####.pi####.com.cn:443
TCP(TLS/1.0) w####.pi####.com.cn:443
TCP(TLS/1.0) res####.a####.com:443
TCP(TLS/1.0) redi####.network####.com:443
TCP(TLS/1.0) dc1.network####.com:443
TCP(TLS/1.0) pawf-ac####.pi####.com.cn:443
TCP(TLS/1.0) w####.pi####.com.####.cn:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224
TCP connec####.pus####.pi####.####.cn:6000

DNS requests:

7j####.c####.z0.####.com
a-padn-####.pi####.com.cn
amap####.cn-hang####.oss####.####.com
c####.g####.ig####.com
c-h####.g####.com
connec####.pus####.pi####.####.cn
dc1.network####.com
free####.pi####.com
m####.pi####.com.cn
pad-app####.pi####.com.cn
padn-ac####.pi####.com.cn
pawf-ac####.pi####.com.cn
pus####.pi####.com.cn
redi####.network####.com
res####.a####.com
s####.magicwi####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
w####.pi####.com
w####.pi####.com.cn

HTTP GET requests:

free####.pi####.com/pawf-core/rest/v5/checkNet?t=####
sh.wagbr####.aliyun####.com/sdkcoor/android/x86/libJni_wgs2gcj.so
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091

HTTP POST requests:

a-padn-####.pi####.com.cn/access.php?m=####&sdkv=####&os=####&source=###...
c-h####.g####.com/api.php?format=####&t=####
padn-ac####.pi####.com.cn/access.php?m=####&sdkv=####&os=####&source=###...
pus####.pi####.com.cn:3000/api/dv/3a7a1e023b49bf5cdf8c3d45e1f28348e/alia...
pus####.pi####.com.cn:3000/api/dv/3a7a1e023b49bf5cdf8c3d45e1f28348e/scre...
pus####.pi####.com.cn:3000/api/dv/3a7a1e023b49bf5cdf8c3d45e1f28348e/tag
pus####.pi####.com.cn:3000/api/q/a/3a7a1e023b49bf5cdf8c3d45e1f28348e
pus####.pi####.com.cn:3000/api/statis/3a7a1e023b49bf5cdf8c3d45e1f28348e
pus####.pi####.com.cn:3000/api/statis/3a7a1e023b49bf5cdf8c3d45e1f28348e/...
s####.magicwi####.cn/config/v2
s####.magicwi####.cn/dp/dpls/v2
s####.magicwi####.cn/tracking/v2
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/11361339882096644057
/data/data/####/1d2b904cbeadfb72ed9546111a231c85.0
/data/data/####/AD_OBJ_FILE
/data/data/####/MultiDex.lock
/data/data/####/RYMskyEye.lock
/data/data/####/RYMtd.lock
/data/data/####/SaveSsid.xml
/data/data/####/SkyEyeRYM_app_pefercen_profile.xml
/data/data/####/SkyEyeRYMpref_longtime.xml
/data/data/####/SkyEyeRYMpref_shorttime.xml
/data/data/####/SkyEyeRYMskyEye.db
/data/data/####/SkyEyeRYMskyEye.db-journal
/data/data/####/SkyEye_app_pefercen_profile.xml
/data/data/####/SkyEyepref_longtime.xml
/data/data/####/SkyEyepref_shorttime.xml
/data/data/####/SkyEyepref_shorttime.xml.bak (deleted)
/data/data/####/SkyEyeskyEye.db
/data/data/####/SkyEyeskyEye.db-journal
/data/data/####/TDRYM_app_pefercen_profile.xml
/data/data/####/TDRYMpref_longtime.xml
/data/data/####/TDRYMpref_shorttime.xml
/data/data/####/TDRYMtcagent.db
/data/data/####/TDRYMtcagent.db-journal
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDtcagent.db
/data/data/####/TDtcagent.db-journal
/data/data/####/anyDoor_preference_push.xml
/data/data/####/anyDoor_preferences.xml
/data/data/####/anyDoor_preferences_loginingo.xml
/data/data/####/anydoor.db
/data/data/####/anydoor.db-journal
/data/data/####/anydoor_msg-journal
/data/data/####/baseWebListUrl.xml
/data/data/####/com.networkbench.agent.impl.v2_com.pingan.pinganwifi.xml
/data/data/####/com.pingan.pinganwifi7ab6567fbed14b238c3de98067b45935.xml
/data/data/####/com.pingan.pinganwifi_dna.xml
/data/data/####/com.pingan.pinganwifi_preferences.xml
/data/data/####/com.pingan.pinganwifi_prefs.xml
/data/data/####/com.pingan.pinganwifi_shumeng_id.xml
/data/data/####/com_pingan_pinganwifi_action_database.db-journal
/data/data/####/config-journal
/data/data/####/file_pa_wifi_dtd
/data/data/####/file_pa_wifi_gc
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/home_ad_guide.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/libjiagu-214295926.so
/data/data/####/loctemp.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/mpush.db-journal
/data/data/####/mpush_gateway_preferences_file
/data/data/####/mpush_process_preferences_file
/data/data/####/mpush_version_preferences_file
/data/data/####/multidex.version.xml
/data/data/####/mwsdk_analytics.db-journal
/data/data/####/pa_data_cache.db-journal
/data/data/####/pa_wifi_config.xml
/data/data/####/paanydoor_resource_3.8.0.22.jar
/data/data/####/paw_sdk_core.db-journal
/data/data/####/paw_sdk_tree_oui.db-journal
/data/data/####/persistent_data.xml
/data/data/####/pre_mw.xml
/data/data/####/pre_third_app_config.xml
/data/data/####/pref.xml
/data/data/####/pref_pa_wifi_sdk.xml
/data/data/####/pref_xlog.xml
/data/data/####/push.pid
/data/data/####/push_config.xml
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/skyEye.lock
/data/data/####/td.lock
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/data/data/####/tdid.xml
/data/data/####/time.xml
/data/data/####/time.xml.bak
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/wifi_in.xml
/data/data/####/zhuge
/data/data/####/zhuge-journal
/data/media/####/.SkyEyeEventRequestId-875737526
/data/media/####/._android.dat
/data/media/####/._driver.dat
/data/media/####/._system.dat
/data/media/####/.aio.dat
/data/media/####/.nomedia
/data/media/####/.tcookieid
/data/media/####/1541600916005.db
/data/media/####/657fcd71a28fd42998e41d0765de548.image_cover
/data/media/####/PAWiFi-APP.mmap2
/data/media/####/PAWiFi-APP_20181107.xlog
/data/media/####/_android.dat
/data/media/####/_driver.dat
/data/media/####/_system.dat
/data/media/####/aio.dat
/data/media/####/alsn.db
/data/media/####/alsn.db-journal
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.pingan.pinganwifi.bin
/data/media/####/com.pingan.pinganwifi.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GeTuiPushService 25116 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
date
df
ls /dev/socket
ls /system/fonts
mkdir -p <SD-Card> .. .. ../../../..<SD-Card>/Android/Data/System/local/
mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
ps
service call iphonesubinfo 1
sh -c cat /proc/meminfo
sh -c cat /proc/sys/kernel/osrelease
sh -c cat /proc/sys/kernel/random/boot_id
sh -c cat /proc/sys/kernel/random/uuid
sh -c cat /sys/block/mmcblk0/device/cid
sh -c cat /sys/class/net/eth0/address
sh -c cat /sys/class/net/eth1/address
sh -c cat /sys/class/net/eth2/address
sh -c cat <SD-Card>/../../../../../..<SD-Card>/..ccdid
sh -c cat <SD-Card>/../../../../../..<SD-Card>/..ccvid
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._driver.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/.aio.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/.ccdid
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/.ccvid
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_driver.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/aio.dat
sh -c cd /proc/;cat cpuinfo
sh -c cd /proc/net/ && cat arp
sh -c cd /proc/self/;cat status
sh -c cd /sys/class/net/eth0/ && cat address
sh -c cd /sys/class/net/wlan0/ && cat address
sh -c echo MDg2RDFDRUI4NzVGRUNCM0E3RjUwQzM5QjdFN0ZGMkQxNTQxNjAwOTI3 > <SD-Card>/../../../../../..<SD-Card>/.aio.dat
sh -c echo MDg2RDFDRUI4NzVGRUNCM0E3RjUwQzM5QjdFN0ZGMkQxNTQxNjAwOTI3 > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/aio.dat
sh -c echo MEY4QTU4RkVEMDU2ODhCNkIwNkNDNzg1MjQ4REYxQzg4NEM1Qzg6MDc4QUI3OjBBQjE0MA== > <SD-Card>/../../../../../..<SD-Card>/._driver.dat
sh -c echo MEY4QTU4RkVEMDU2ODhCNkIwNkNDNzg1MjQ4REYxQzg4NEM1Qzg6MDc4QUI3OjBBQjE0MA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_driver.dat
sh -c echo OTFDRTBFQTlCRkZCQTRGMjBBQ0IzMkE4QUI5MUFBRjcxREU1NDc6NDFCNjNGOjFCNUZCQg== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo OTFDRTBFQTlCRkZCQTRGMjBBQ0IzMkE4QUI5MUFBRjcxREU1NDc6NDFCNjNGOjFCNUZCQg== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GeTuiPushService 25116 300 0

Loads the following dynamic libraries:

WiFiSecure
du
getuiext2
hfenginelib
libjiagu-214295926
marsxlog
nativemodulelib
pl_droidsonroids_gif
stlport_shared
wifiin-jni

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA-ECB-PKCS1Padding
desede-CBC-PKCS5Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, IMEI, etc.).

Gains access to information about installed applications.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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