Adware.Gexin.6429

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) a####.u####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) u####.yg####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) s####.tc.qq.com:443
TCP(TLS/1.0) shence####.yg####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
c####.g####.ig####.com
c-h####.g####.com
i-st####.yg####.com
log.u####.com
m.yg####.com
plb####.u####.com
r####.wx.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
shence####.yg####.com
u####.u####.com
u####.yg####.com
www.yg####.com

HTTP GET requests:

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

HTTP POST requests:

a####.u####.com/app_logs
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/####/089c5b6a017f2fc5d361570526ac3bb9.0.tmp
/data/data/####/159b10ecac6f123850b966e3691297a5.0.tmp
/data/data/####/159b10ecac6f123850b966e3691297a5.1.tmp
/data/data/####/3cbc89d8abbe6cfbe35c772c33a3708c.0.tmp
/data/data/####/3cbc89d8abbe6cfbe35c772c33a3708c.1.tmp
/data/data/####/44ad409fa3d4c567f03a299b7e3653a4.0.tmp
/data/data/####/5ec96b74e7923913bcf150e609e27eeb.0.tmp
/data/data/####/5ec96b74e7923913bcf150e609e27eeb.1.tmp
/data/data/####/ApplicationCache.db-journal
/data/data/####/afc887c27a8d4acac598827ae219d579.0.tmp
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.sinosig.ygibao-journal
/data/data/####/d162d7c5fbd58aba8a6a41acce944a1b.0.tmp
/data/data/####/d162d7c5fbd58aba8a6a41acce944a1b.1.tmp
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NjMxMTIxMTU3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NjMxMTMwNDY4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NjMxMTQ0OTU3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NjMxMTU2OTkx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ0NjMxMTgzNTE5;
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f844183586f0fab2351b9c1df4ebcb38.0.tmp
/data/data/####/f844183586f0fab2351b9c1df4ebcb38.1.tmp
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&2.0.1_1544631121183_envelope.log
/data/data/####/i==1.2.0&&2.0.1_1544631183522_envelope.log
/data/data/####/index
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-752598580.so
/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/####/sensorsdata.xml
/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_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/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.sinosig.ygibao.bin
/data/media/####/com.sinosig.ygibao.db
/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
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.DemoPushService 24810 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.DemoPushService 24810 300 0

Loads the following dynamic libraries:

getuiext3
libjiagu-752598580

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

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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