Adware.Gexin.12979

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) gd.a.s####.com:80
TCP(HTTP/1.1) www.go####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) 1####.217.168.206:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5225

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
plb####.u####.com
pub-####.qin####.com
pv.s####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com
www.go####.com
yjz####.shenjim####.com

HTTP GET requests:

gd.a.s####.com/cityjson?ie=####
qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Cta775
t####.c####.q####.####.com/tdata_RyW085
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_lOE499
www.go####.com/complete/search?hl=####&client=####&q=####

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/a==7.5.1&&1.0.1_1556582377644_envelope.log
/data/data/####/d9967de30cbd
/data/data/####/d==7.5.1&&1.0.1_1556582378454_envelope.log
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzYyNjgz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzc0Nzgz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzg4ODEy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzk0NDIy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzk3ODg2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyMzkwNTM5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyNDAxODkx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NTgyNDI2NTI0;
/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&&1.0.1_1556582376674_envelope.log
/data/data/####/i==1.2.0&&1.0.1_1556582394461_envelope.log
/data/data/####/i==1.2.0&&1.0.1_1556582427387_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu134562677.so
/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/####/shared_data.xml
/data/data/####/tdata_Cta775
/data/data/####/tdata_Cta775.jar
/data/data/####/tdata_RyW085
/data/data/####/tdata_RyW085.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_lOE499
/data/data/####/tdata_lOE499.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/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.yudao.xysz.bin
/data/media/####/com.yudao.xysz.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/sysid.dat
/data/media/####/tdata_Cta775
/data/media/####/tdata_RyW085
/data/media/####/tdata_YYn966
/data/media/####/tdata_lOE499
/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.GeTuiPushService 24435 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu134562677.so
ls /sys/class/thermal
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTuiPushService 24435 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu134562677

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

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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