Adware.Gexin.1300

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) c-h####.g####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) lbs.net####.im:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) pin####.qq.com:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) nim.qi####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227
TCP l####.net####.im:8080

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
aexcep####.b####.qq.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
l####.net####.im
lbs.net####.im
nim.qi####.com
pi####.qq.com
pin####.qq.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

lbs.net####.im/lbs/conf.jsp?tp=####&sv=####&pv=####&id=####&k=####
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_Soq141
sni.c####.q####.####.net/tdata_vxj811
t####.c####.q####.####.com/tdata_EDT356

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report/?index=####
pin####.qq.com/request
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/NIMSDK_Config_c7e62fc2b040fdb5bb2a33aaef27f47f.xml
/data/data/####/NIMSDK_Config_c7e62fc2b040fdb5bb2a33aaef27f47f_...1d.xml
/data/data/####/Phone.xml
/data/data/####/Unicorn.Demo.xml
/data/data/####/Unicorn.c7e62fc2b040fdb5bb2a33aaef27f47f.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/clientid.xml
/data/data/####/com.shanzi.thetenthloan.mid.world.ro.xml
/data/data/####/com.shanzi.thetenthloan_preferences.xml
/data/data/####/e8df6d0d4769
/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_com.shanzi.thetenthloan-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/####/msg.db-journal
/data/data/####/native_record_lock
/data/data/####/pref_key.xml
/data/data/####/pri_legu_tencent_analysis.db_com.shanzi.thetent...ournal
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qiyu_save_c7e62fc2b040fdb5bb2a33aaef27f47f.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/####/unicorn#cheese#
/data/media/####/.mid.txt
/data/media/####/.mid.txt1000001
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.shanzi.thetenthloan.bin
/data/media/####/com.shanzi.thetenthloan.db
/data/media/####/nim_sdk.log
/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 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.example.pro_phonexj.service.MyGeTuiService 25358 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>/com.example.pro_phonexj.service.MyGeTuiService 25358 300 0

Loads the following dynamic libraries:

Bugly
MtaNativeCrash
getuiext2
libnfix
libshella-2.9.0.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CFB-NoPadding
AES-ECB-NoPadding
AES-GCM-NoPadding

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 APN settings.

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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