Adware.Gexin.9092

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) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c-h####.g####.com
log.u####.com
mt####.go####.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/tdata_Jga153
t####.c####.q####.####.com/tdata_Wqf010
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_ynp969

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/####/1004
/data/data/####/1551120354301_2279
/data/data/####/1551120355527_2279
/data/data/####/1551120360778_2428
/data/data/####/1551120364343_2518
/data/data/####/1551120366099_2357
/data/data/####/1551120367872_2357
/data/data/####/1551120375055_2929
/data/data/####/1551120376136_2929
/data/data/####/1551120379009_3031
/data/data/####/1551120382117_2357
/data/data/####/1551120416524_4104
/data/data/####/1551120417333_4104
/data/data/####/1551120419049_4104
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/bugly_db_-journal
/data/data/####/com.woochen.candyworld_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwMzUzMjMw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwMzY0NjE4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwMzYwODQ2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwMzc0Njk5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwMzc4NjI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUxMTIwNDE2MTk0;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&1.0_1551120353259_envelope.log
/data/data/####/i==1.2.0&&1.0_1551120361089_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/iv
/data/data/####/libjiagu429845727.so
/data/data/####/local_crash_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/salt
/data/data/####/security_info
/data/data/####/tdata_Jga153
/data/data/####/tdata_Jga153.jar
/data/data/####/tdata_Wqf010
/data/data/####/tdata_Wqf010.jar
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_ynp969
/data/data/####/tdata_ynp969.jar
/data/data/####/tdid.xml
/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_it.cache
/data/data/####/umeng_socialize.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.tcookieid
/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.woochen.candyworld.bin
/data/media/####/com.woochen.candyworld.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/sysid.dat
/data/media/####/tdata_Jga153
/data/media/####/tdata_Wqf010
/data/media/####/tdata_bca864
/data/media/####/tdata_ynp969
/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
/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PersonPushService 25245 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu429845727.so
getprop
logcat -d -v threadtime
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PersonPushService 25245 300 0

Loads the following dynamic libraries:

Bugly
getuiext3
libjiagu429845727

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES
AES-ECB-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

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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