Adware.Gexin.5299

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) pub-####.qin####.com:80
TCP(HTTP/1.1) c####.baidust####.com:80
TCP(HTTP/1.1) mo####.b####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) p####.tc.qq.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) ub####.baidust####.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) zuitou####.xa####.com:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) mobads-####.b####.com:443
TCP(TLS/1.0) s####.e.qq.com:443
TCP c####.g####.ig####.com:5227
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
c####.baidust####.com
c####.g####.ig####.com
c-h####.g####.com
imgc####.qq.com
mi.g####.qq.com
mo####.b####.com
mobads-####.b####.com
p####.ugd####.com
plb####.u####.com
pub-####.qin####.com
qzones####.g####.cn
s####.e.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com
ub####.baidust####.com
zuitou####.xa####.com

HTTP GET requests:

c####.baidust####.com/cpro/ui/noexpire/ws/3rd/esl_b150bbf.js
c####.baidust####.com/cpro/ui/noexpire/ws/css/base_f258e90.css
c####.baidust####.com/cpro/ui/noexpire/ws/css/ui_b99a586.css
c####.baidust####.com/cpro/ui/noexpire/ws/images/logo/logo-mob_94da672.png
c####.baidust####.com/cpro/ui/noexpire/ws/js/anticheatMob_776abb3.js
c####.baidust####.com/cpro/ui/noexpire/ws/js/util_f199241.js
c####.baidust####.com/cpro/ui/noexpire/ws/widget/logo_5b92275.js
mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
mo####.b####.com/ads/sec.php
mo####.b####.com/cpro/ui/mads.php?code2=####&b1543179937773=####
mo####.b####.com/cpro/ui/mads.php?code2=####&b1543179942449=####
p####.tc.qq.com/qzone/biz/gdt/mod/android/AndroidAllInOne/proguard/his/r...
pub-####.qin####.com/tdata_EDT356
s####.tc.qq.com/gdt/0/DAAD72KAKAAPAAApBbjS57B44zn5rU.jpg/0?ck=####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_vxj811
ub####.baidust####.com/media/v1/0f000FTnLWTBFUKwJiAyLs.jpg

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
s####.e.qq.com/activate
s####.e.qq.com/launch
sdk.o####.p####.####.com/api.php?format=####&t=####
zuitou####.xa####.com/index.php/Wbs?w####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/2789.yaqcookie
/data/data/####/3918.yaqcookie
/data/data/####/9a599451558c
/data/data/####/BuglySdkInfos.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/__x_adsdk_agent_header__.xml
/data/data/####/__xadsdk__remote__final__builtin__.jar
/data/data/####/__xadsdk__remote__final__builtinversion__.jar
/data/data/####/__xadsdk__remote__final__running__.dex (deleted)
/data/data/####/__xadsdk__remote__final__running__.jar
/data/data/####/com.baidu.mobads.loader.xml
/data/data/####/d8e67ec7102dca09281249c880d77711.temp
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5ODk2NjYy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5ODk4NDg4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5ODk5ODEy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTA2MjEw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTA4Mzk0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTA5MTQw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTI0OTk5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTIwOTc3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTM3NzA1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTMyODg1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTQ4NjMz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTQwNzg2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTQyNTI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTUyMDI1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTc5OTY2MTcy;
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.78222786.dat
/data/data/####/dexMethod.82894129.dat
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/gdaemon_20161017
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.dex (deleted)
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_stat.db
/data/data/####/gdt_stat.db-journal
/data/data/####/gdt_suid
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&3.4.9_1543179899843_envelope.log
/data/data/####/i==1.2.0&&3.4.9_1543179942574_envelope.log
/data/data/####/i==1.2.0&&3.4.9_1543179966266_envelope.log
/data/data/####/index
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-60666461.so
/data/data/####/libyaqbasic.78222786.so
/data/data/####/libyaqbasic.82894129.so
/data/data/####/libyaqpro.78222786.so
/data/data/####/libyaqpro.82894129.so
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/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/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/update_lc
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/xinwenzhuan.xml
/data/data/####/yaqsdkcookie
/data/data/####/zuitoutiao.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/app.db
/data/media/####/cc.zuitoutiao.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/sysid.dat
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/data/media/####/test.log

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
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24361 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
ls /sys/class/thermal
mount

Loads the following dynamic libraries:

getuiext2
libjiagu-60666461
libyaqbasic.78222786
libyaqbasic.82894129
libyaqpro.78222786
libyaqpro.82894129

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding
desede-CBC-PKCS5Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding
desede-CBC-PKCS5Padding

Uses special library to hide executable bytecode.

Gets information about location.

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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