Adware.Gexin.3035

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) lica####.wi####.com:80
TCP(HTTP/1.1) cgi.con####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) Wi####.c####.sensors####.cn:4006
TCP(TLS/1.0) api.w####.com:443
TCP(TLS/1.0) l####.wi####.com:443
TCP(TLS/1.0) hm.b####.com:443
TCP(TLS/1.0) cdn.boo####.com.####.com:443
TCP(TLS/1.0) zhug####.com:443
TCP(TLS/1.0) 1####.217.17.46:443
TCP(TLS/1.0) s####.tc.qq.com:443
TCP(TLS/1.0) u.zhug####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
Wi####.c####.sensors####.cn
a####.u####.com
and####.cli####.go####.com
api.w####.com
c####.g####.ig####.com
c-h####.g####.com
cdn.boo####.com
cgi.con####.qq.com
hm.b####.com
l####.wi####.com
lica####.wi####.com
mt####.go####.com
pi####.qq.com
r####.wx.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u.zhug####.com
zhug####.com

HTTP GET requests:

cgi.con####.qq.com/qqconnectopen/openapi/policy_conf?sdkv=####&appid=###...
lica####.wi####.com/10001/editor/20170302/ebcc25e5f0dac030ddff1ad0081658...
lica####.wi####.com/10001/editor/20170612/13ea9e2de995ca12da160226cda885...
lica####.wi####.com/10001/editor/20180626/48700e9d1a9cfaaed2cde31515a3f8...
lica####.wi####.com/10001/editor/20180810/5820f9c29e44e69b3747254f22c4c9...
lica####.wi####.com/10001/editor/20180903/61a160b2069474e81111c9c5a63f45...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_YJA893

HTTP POST requests:

a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.mta-wxop.xml
/data/data/####/XNSDKStore1.0.xml
/data/data/####/XNclientid.xml
/data/data/####/XNmachineid.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.tencent.open.config.json.1104927630
/data/data/####/com.winbei.licai-journal
/data/data/####/com.winbei.licai3188f602645e4d3c892c1fb1fd62db23.xml
/data/data/####/com.winbei.licai_preferences.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/deep_share_preference.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/https_licai.winbei.com_0.localstorage-journal
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/kf_9581_ISME9754_guest7850189142752588288176131...ournal
/data/data/####/libjiagu351156971.so
/data/data/####/multidex.version.xml
/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/####/run.pid
/data/data/####/sensorsdata.xml
/data/data/####/settings.xml
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_YJA893
/data/data/####/tdata_YJA893.jar
/data/data/####/tencent_analysis.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/weibo_sdk_aid1
/data/data/####/wxop_tencent_analysis.db-journal
/data/data/####/xnsdkconfig.xml
/data/data/####/zhuge
/data/data/####/zhuge-journal
/data/media/####/.mid.txt
/data/media/####/.nomedia
/data/media/####/27lvpe3vdeo26spi300xhxou.tmp
/data/media/####/3ut1fvfwynjfvka0jjqpac3wy.tmp
/data/media/####/4m4rem1bjrod53byhjeno99qt.tmp
/data/media/####/53yrr3a09c76tmlegxjrb0mrt.tmp
/data/media/####/5bbniobl6ng0ya8tfd4cpzk7x.tmp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.winbei.licai.bin
/data/media/####/com.winbei.licai.db
/data/media/####/tdata_BAI450
/data/media/####/tdata_YJA893
/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
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getui.PushService 24563 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu351156971.so
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getui.PushService 24563 300 0

Loads the following dynamic libraries:

MtaNativeCrash
aesencrypt
getuiext2
libjiagu351156971
weibosdkcore

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES
AES-CBC-PKCS7Padding

Uses special library to hide executable bytecode.

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.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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