Adware.Gexin.6151

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) a####.exc.mob.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(HTTP/1.1) app.hyou####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
and####.b####.qq.com
app.hyou####.com
c####.g####.ig####.com
c-h####.g####.com
l####.tbs.qq.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:

app.hyou####.com/appVersionControl/getLastEntityByPlatform/ANDROID
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_fyR930
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.duid
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/SP_AROUTER_CACHE.xml
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/a==7.5.4&&1.0_1544351801886_envelope.log
/data/data/####/bugly_db_-journal
/data/data/####/city.db
/data/data/####/com.yszg.hongyou.BETA_VALUES.xml
/data/data/####/config.xml
/data/data/####/core_info
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODAxNDE4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODAzOTQy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODE2NTM2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODExMzA2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODI1MzA5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODI4MzA4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODIwNjc0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODIyNDE1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODM0NDI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODM3MTgy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODMwMDM1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODMyMjk3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODQ0NTI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODQ4NTEx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODQwNjMw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODU0ODg0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODU3MTY0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODUwMzM5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODUyNjYw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0MzUxODYzMTcw;
/data/data/####/domain_1
/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&&1.0_1544351801440_envelope.log
/data/data/####/i==1.2.0&&1.0_1544351863233_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-885103459.so
/data/data/####/local_crash_lock
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/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/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.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/####/.artc_lock
/data/media/####/.cca.dat
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/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.yszg.hongyou.db
/data/media/####/sysid.dat
/data/media/####/tbslog.txt
/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
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24649 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
getprop ro.product.cpu.abi
logcat -d -v threadtime
ls /
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24649 300 0

Loads the following dynamic libraries:

Bugly
getuiext3
libjiagu-885103459

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-NoPadding
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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