Adware.Gexin.8085

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) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.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) chu####.l####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
chu####.l####.com
plb####.u####.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:

t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_OPb601
t####.c####.q####.####.com/tdata_YYn966

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1002
/data/data/####/1004
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/a==7.5.3&&1.5.8_1548611797797_envelope.log
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/cn.zzstc.lzm.BETA_VALUES.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzM4ODE2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzM5ODY0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzQ0NzY4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzQ1ODUy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzQ4Nzk0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzQ5NzUy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzQzNTg4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzUzNDQ0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzY2MzQ2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzY3NTAz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzYwMDU1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzYzOTYz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzcxMzM5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzczMjU5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzg1OTkw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzg2ODk1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ4NjExNzk1MTkw;
/data/data/####/data.mdb
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/getui_sp.xml
/data/data/####/i==1.2.0&&1.5.8_1548611744788_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu1408623666.so
/data/data/####/local_crash_lock
/data/data/####/lock.mdb
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/okgo.db
/data/data/####/okgo.db-journal
/data/data/####/push.pid
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/share_data.xml
/data/data/####/sys_log_1548611735376365.txt (deleted)
/data/data/####/tdata_OPb601
/data/data/####/tdata_OPb601.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.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/####/webview.db
/data/data/####/webview.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/cn.zzstc.lzm.bin
/data/media/####/cn.zzstc.lzm.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/tdata_OPb601
/data/media/####/tdata_YYn966

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
getprop
ls /sys/class/thermal

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu1408623666
objectbox

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding

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.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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