Adware.Gexin.443

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:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) zhu####.go####.com.cn:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(HTTP/1.1) rong####.go####.com.cn:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) f####.z####.dom####.com:80
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
f####.z####.dom####.com
pi####.qq.com
rong####.go####.com.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
zhu####.go####.com.cn

HTTP GET requests:

f####.z####.dom####.com/url/data_url.json
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_Soq141
sni.c####.q####.####.net/tdata_vxj811

HTTP POST requests:

a####.u####.com/app_logs
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report/?index=####
rong####.go####.com.cn/zl/api/html/list
rong####.go####.com.cn/zl/api/kf/getQQGroup
rong####.go####.com.cn/zl/api/wz/url
sdk.o####.p####.####.com/api.php?format=####&t=####
zhu####.go####.com.cn/zl/api/fxy/list

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.mta-wxop.xml
/data/data/####/07a31ccf59480640e0e9c107c3f3512587dde76f7cd7a67....0.tmp
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/MultiDex.lock
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.gosing.rongyaozhuan.BETA_VALUES.xml
/data/data/####/com.gosing.rongyaozhuan_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/jump.xml
/data/data/####/libshella-2.8.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pri_wxop_tencent_analysis.db-journal
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qqgroup.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_vxj811
/data/data/####/tdata_vxj811.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/wx_share.cfg.xml
/data/data/####/wxop_tencent_analysis.db-journal
/data/media/####/.mid.txt
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.gosing.rongyaozhuan.bin
/data/media/####/com.gosing.rongyaozhuan.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/data/media/####/test.log

Miscellaneous:

Executes next 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
/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>/com.gosing.pocketgain.service.PushInitializeService 25375 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.8.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop
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

Loads the following dynamic libraries:

Bugly
getuiext2
libnfix
libshella-2.8
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding
DES
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-GCM-NoPadding
DES

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.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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