Adware.Gexin.20882

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) m.d####.mob.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(HTTP/1.1) pentaq####.b0.a####.com:80
TCP(TLS/1.0) mo####.pe####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP cm-1####.g####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

a####.exc.mob.com
api.s####.mob.com
av1.x####.com
c####.x####.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
d####.d####.mob.com
i####.pe####.com
m.d####.mob.com
mo####.pe####.com
mt####.go####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_EAx630
cdn-sdk####.g####.com.####.com/tdata_Hei769
cdn-sdk####.g####.com.####.com/tdata_fPG280
m.d####.mob.com/cconf?appkey=####&plat=####&apppkg=####&appver=####&netw...
pentaq####.b0.a####.com/2020/11/2020-11-28-23-09-35-35.jpg
pentaq####.b0.a####.com/2020/11/2020-11-29-18-54-55-76.jpg
pentaq####.b0.a####.com/2020/11/2020-11-30-23-09-54-72.png
pentaq####.b0.a####.com/matchpic/201812/2117/231515453841954.jpg

HTTP POST requests:

api.s####.mob.com/conf5
api.s####.mob.com/conn
api.s####.mob.com/data2
c-h####.g####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrlock
/data/data/####/.statistics
/data/data/####/103c4e550e088ff62428065424c98735f4a98240f691d9f....0.tmp
/data/data/####/1606751306661_2190
/data/data/####/1606751307483_2190
/data/data/####/1606751308536_2190
/data/data/####/1606751309263_2190
/data/data/####/1606751309832_2190
/data/data/####/1606751310141_2190
/data/data/####/1606751312783_2190
/data/data/####/1606751314663_2190
/data/data/####/1606751318373_2375
/data/data/####/1606751327390_2375
/data/data/####/1606751329946_2190
/data/data/####/1606751330414_2190
/data/data/####/1606751339301_2375
/data/data/####/1606751371502_2190
/data/data/####/1606751372216_2190
/data/data/####/1606751373317_2375
/data/data/####/1cfe115030e151c9b8c7244c8188a041475f62e8f47364c....0.tmp
/data/data/####/1cfe115030e151c9b8c7244c8188a041475f62e8f47364c...d33b.0
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/CookiePersistence.xml
/data/data/####/MultiDex.lock
/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_longtime0.xml.bak
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/a92f2eb2323784394a4c96f1ab5a88434c039acb1f32255....0.tmp
/data/data/####/bc431c758f1e33e9f830d9af905f56a795892095fb78fde....0.tmp
/data/data/####/com.oom.pentaq_preferences.xml
/data/data/####/device_id.xml.xml
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/iv
/data/data/####/journal.tmp
/data/data/####/libjiagu-1391202135.so
/data/data/####/multidex.version.xml
/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/####/salt
/data/data/####/share_sdk_1.xml
/data/data/####/tdata_EAx630
/data/data/####/tdata_EAx630.jar
/data/data/####/tdata_Hei769
/data/data/####/tdata_Hei769.jar
/data/data/####/tdata_fPG280
/data/data/####/tdata_fPG280.jar
/data/data/####/tdid.xml
/data/media/####/.ccLock
/data/media/####/.dk
/data/media/####/.globalLock
/data/media/####/.tcookieid
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.oom.pentaq.bin
/data/media/####/com.oom.pentaq.db
/data/media/####/easemob.log
/data/media/####/tdata_EAx630
/data/media/####/tdata_Hei769
/data/media/####/tdata_fPG280
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PushService 24391 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1391202135.so
getprop
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.PushService 24391 300 0

Loads the following dynamic libraries:

getuiext2
hyphenate
hyphenate_av
hyphenate_av_recorder
libjiagu-1391202135
neh
sqlite

Uses the following algorithms to encrypt data:

AES
AES-ECB-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

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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