Adware.Gexin.6360

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) sdk.o####.p####.####.com:80
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) ti####.c####.l####.####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

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

pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_fyR930
ti####.c####.l####.####.com/config/hz-hzv3.conf

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/####/MultiDex.lock
/data/data/####/XIAOMI_PREMANENT_DATA.xml
/data/data/####/XIAOMI_TEMP_DATA.xml
/data/data/####/a==7.5.3&&4.5.0_1544454512863_envelope.log
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTEyNDE1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTIyOTUw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTM3OTk5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTMxODk2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTQ0NTA0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTQ3Nzcx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTUwMTQx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTUzNjI4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NDU0NTY3MDE5;
/data/data/####/e1a2b75ffcc5
/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&&4.5.0_1544454512519_envelope.log
/data/data/####/i==1.2.0&&4.5.0_1544454522972_envelope.log
/data/data/####/i==1.2.0&&4.5.0_1544454531956_envelope.log
/data/data/####/i==1.2.0&&4.5.0_1544454538015_envelope.log
/data/data/####/i==1.2.0&&4.5.0_1544454544580_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-632476872.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/sys_log_154445451044908.txt
/data/data/####/sys_log_1544454517502183.txt
/data/data/####/sys_log_1544454518247390.txt
/data/data/####/sys_log_1544454543525193.txt
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_fyR930
/data/data/####/tdata_fyR930.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_it.cache
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/1d0ee77bff9362c81a0d2265465c14f06131bf1ae02a29....0.tmp
/data/media/####/a610c8d6fd339a433cc5a49c3b03b2907660f1bf7aed83....0.tmp
/data/media/####/app.db
/data/media/####/com.baojia.mebike.bin
/data/media/####/com.baojia.mebike.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/sysid.dat
/data/media/####/tdata_bca864
/data/media/####/tdata_fyR930
/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.MebikePushService 24646 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
logcat -d -v threadtime
ls /sys/class/thermal
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.MebikePushService 24646 300 0

Loads the following dynamic libraries:

Bugly
getuiext3
libjiagu-632476872

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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.

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