Adware.Gexin.6097

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) f####.huob####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) nav.cn.ron####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) mai####.huob####.com:443
TCP(TLS/1.0) s####.huob####.com:443
TCP(TLS/1.0) s####.cn.ron####.com:443
TCP(TLS/1.0) 1####.217.20.78:443
TCP 1####.92.116.71:8635
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
f####.huob####.com
l####.tbs.qq.com
mai####.huob####.com
nav.cn.ron####.com
plb####.u####.com
s####.cn.ron####.com
s####.huob####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com

HTTP GET requests:

f####.huob####.com/group1/M00/00/70/ChvHbFrgPgeAUM7VAAF7sxQ_icc990.jpg
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_SLj922
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
nav.cn.ron####.com/navipush.json
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/52617c08041399244861cbae6c2dd4187e4afb16b2dc076....0.tmp
/data/data/####/COUNTLY_STORE.xml
/data/data/####/EL_SharePrefence.xml
/data/data/####/FwLog.xml
/data/data/####/RongPush.xml
/data/data/####/RongPushAppConfig.xml
/data/data/####/Statistics.xml
/data/data/####/a==7.5.3&&2.1.8_1544259481755_envelope.log
/data/data/####/core_info
/data/data/####/d==7.5.3&&2.1.8_1544259482460_envelope.log
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDUwNDcy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDY0NzEz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDY2NTMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDYwNTAw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDc0Nzgy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDc5MzM2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDcxNzU3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDczMzgx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NDk4NjU3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTA1MDg3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTA2MDcy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTA4NjA3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTAzNDY3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTExMzUw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MjU5NTEzNTI0;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&2.1.8_1544259450717_envelope.log
/data/data/####/i==1.2.0&&2.1.8_1544259498700_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu2056978320.so
/data/data/####/locale.config.xml
/data/data/####/multidex.version.xml
/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/####/tbs_download_config.xml
/data/data/####/tbs_download_config.xml (deleted)
/data/data/####/tbs_download_config.xml.bak
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_SLj922
/data/data/####/tdata_SLj922.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_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml (deleted)
/data/data/####/umeng_it.cache
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.nuocf.yshuobang.bin
/data/media/####/com.nuocf.yshuobang.db
/data/media/####/sysid.dat
/data/media/####/tbslog.txt
/data/media/####/tdata_BAI450
/data/media/####/tdata_SLj922
/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>/<Package>.service.PushService 24926 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.miui.ui.version.name
getprop ro.product.cpu.abi
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PushService 24926 300 0

Loads the following dynamic libraries:

RongIMLib
getuiext2
libjiagu2056978320

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding

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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