Adware.Gexin.6927

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) p.s.3####.cn:80
TCP(HTTP/1.1) s####.s.360.cn:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) pin####.qq.com:80
TCP(HTTP/1.1) 47.1####.140.194:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) k####.b####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) sdk.l####.360.cn:80
TCP(TLS/1.0) r####.b####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
api.app.b####.com
api.b####.com
c####.g####.ig####.com
c-h####.g####.com
k####.b####.com
p.s.3####.cn
pi####.qq.com
pin####.qq.com
r####.b####.com
s####.s.360.cn
sdk.c####.ig####.com
sdk.l####.360.cn
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

k####.b####.com/
s####.s.360.cn/ak/afd4836712c5e77550897e25711e1d96.html?m2=####
sdk.l####.360.cn/codec?model=####&pid=####&mid=####&ver=####&bid=####&sd...
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_SLj922
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
p.s.3####.cn/update/update.php?p=####
pi####.qq.com/mstat/report/?index=####
pin####.qq.com/request
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/QH_DeviceSDK.xml
/data/data/####/QH_SDK_M2.xml
/data/data/####/QH_SDK_UserDataafd4836712c5e77550897e25711e1d96...leted)
/data/data/####/QH_SDK_UserDataafd4836712c5e77550897e25711e1d96.xml
/data/data/####/QH_SDK_sessionIDafd4836712c5e77550897e25711e1d96.xml
/data/data/####/XinZF.xml
/data/data/####/XinZF_conf.xml
/data/data/####/XinZFsmspay.db
/data/data/####/XinZFsmspay.db-journal
/data/data/####/btime_multi_theme.xml
/data/data/####/btime_netmode_debug.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/config.xml
/data/data/####/d2Vndi53ZWZnLndyZw==.tick.lock
/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/####/legu_tencent_analysis.db_wegv.wefg.wrg-journal
/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/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pri_legu_tencent_analysis.db_wegv.wefg.wrg-journal
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_SLj922
/data/data/####/tdata_SLj922.jar
/data/data/####/tray.db-journal
/data/data/####/wegv.wefg.wrg.mid.world.ro.xml
/data/data/####/wegv.wefg.wrg_preferences.xml
/data/media/####/.deviceId
/data/media/####/.iddata
/data/media/####/.mid.txt
/data/media/####/.mid.txt1000001
/data/media/####/Pno
/data/media/####/Pno (deleted)
/data/media/####/afd4836712c5e77550897e25711e1d96
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/d2Vndi53ZWZnLndyZw==
/data/media/####/d2Vndi53ZWZnLndyZw== (deleted)
/data/media/####/logs.txt
/data/media/####/tdata_BAI450
/data/media/####/tdata_SLj922
/data/media/####/test.log
/data/media/####/wegv.wefg.wrg.bin
/data/media/####/wegv.wefg.wrg.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>/files/gdaemon_20161017 0 <Package>/com.btime.common.push.BTPushService 24294 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.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
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.btime.common.push.BTPushService 24294 300 0

Loads the following dynamic libraries:

Bugly
MtaNativeCrash
getuiext2
libnfix
libshella-2.9.0.2
libufix
nfix
openh264
publisher
realm-jni
transcore
ufix
viewer

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding
RSA-NONE-PKCS1PADDING

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
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.

Parses information from SMS.

Gets information about sent/received SMS.

Technologies

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