Adware.Gexin.12493

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) c-h####.g####.com:80
TCP(HTTP/1.1) analy####.ray####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) fk-old-####.ray####.com:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) a####.b####.qq.com:8012
TCP(TLS/1.0) d1qtxr7####.cloudf####.net:443
TCP(TLS/1.0) s####.insupe####.com.####.com:443
TCP(TLS/1.0) a####.i####.pw:443
TCP(TLS/1.0) sett####.crashly####.com:443
TCP(TLS/1.0) avnight####.f####.myqc####.com:443
TCP(TLS/1.0) ssl.google-####.com:443
TCP(TLS/1.0) e.crashly####.com:443
TCP(TLS/1.0) sdk.adti####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
a####.i####.pw
a.d####.icu
aexcep####.b####.qq.com
analy####.ray####.com
and####.b####.qq.com
avnight####.f####.myqc####.com
c####.g####.ig####.com
c-h####.g####.com
d1qtxr7####.cloudf####.net
e.crashly####.com
m.adti####.com
pub-####.qin####.com
s####.insupe####.com
sdk-ope####.g####.com
sdk.adti####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
set####.ray####.com
sett####.crashly####.com
ssl.google-####.com

HTTP GET requests:

fk-old-####.ray####.com/setting?app_id=####&sign=####&channel=####&platf...
qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Gfv491
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iRz660
t####.c####.q####.####.com/tdata_zzW503

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
analy####.ray####.com/
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/5CB905390139-0001-08F6-28EBF05194EBBeginSession.cls_temp
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBBeginSession.json
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionApp.cls_temp
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionApp.json
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionDevice.cls_temp
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionDevice.json
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionOS.cls_temp
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionOS.json
/data/data/####/5CB905390139-0001-08F6-28EBF05194EBSessionUser.cls_temp
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBBeginSession.cls_temp
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBBeginSession.json
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionApp.cls_temp
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionApp.json
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionDevice.cls_temp
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionDevice.json
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionOS.cls_temp
/data/data/####/5CB9053A02FB-0001-0937-28EBF05194EBSessionOS.json
/data/data/####/MultiDex.lock
/data/data/####/TwitterAdvertisingInfoPreferences.xml
/data/data/####/UUID.xml
/data/data/####/announce.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/com.crashlytics.prefs.xml
/data/data/####/com.crashlytics.sdk.android.crashlytics-core;co...re.xml
/data/data/####/com.crashlytics.sdk.android;answers;settings.xml
/data/data/####/com.crashlytics.settings.json
/data/data/####/com.google.android.gms.analytics.prefs.xml
/data/data/####/core.xml
/data/data/####/crash_log_sp.xml
/data/data/####/fd145caa77b3
/data/data/####/gaClientId
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/google_analytics_v4.db-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/initialization_marker
/data/data/####/io.fabric.sdk.android;fabric;io.fabric.sdk.android.l.xml
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mobvista.msdk.db-journal
/data/data/####/mobvista.xml
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/sa_04d40227-8690-4469-8247-1609a43fc3d6_1555629371166.tap
/data/data/####/sa_381743c4-9bf0-4945-bcd9-4380596cf1a5_1555629372684.tap
/data/data/####/security_info
/data/data/####/session_analytics.tap
/data/data/####/session_analytics.tap (deleted)
/data/data/####/session_analytics.tap.tmp
/data/data/####/share_date.xml
/data/data/####/shell_config
/data/data/####/tdata_Gfv491
/data/data/####/tdata_Gfv491.jar
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iRz660
/data/data/####/tdata_iRz660.jar
/data/data/####/tdata_zzW503
/data/data/####/tdata_zzW503.jar
/data/data/####/uij
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/bg8
/data/media/####/bg8 (deleted)
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_Gfv491
/data/media/####/tdata_MkX219
/data/media/####/tdata_iRz660
/data/media/####/tdata_zzW503
/data/media/####/test.log
/data/media/####/tv.i999.bin
/data/media/####/tv.i999.db

Miscellaneous:

Executes the following shell scripts:

/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>/files/gdaemon_20161017 0 <Package>/<Package>.Service.PushService 23556 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.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
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.Service.PushService 23556 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
libnfix
libshella-2.9.0.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

AES
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES
AES-ECB-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about network.

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

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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