Adware.Gexin.3745

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) m.d####.mob.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(TLS/1.0) e.crashly####.com:443
TCP(TLS/1.0) rep####.crashly####.com:443
TCP(TLS/1.0) joyc####.51joy####.com:443
TCP(TLS/1.0) sett####.crashly####.com:443

DNS requests:

a####.exc.mob.com
a####.u####.com
api.s####.mob.com
e.crashly####.com
joyc####.51joy####.com
m.d####.mob.com
rep####.crashly####.com
sett####.crashly####.com

HTTP GET requests:

m.d####.mob.com/v2/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...

HTTP POST requests:

a####.exc.mob.com/errconf
a####.u####.com/app_logs
api.s####.mob.com/conf5
api.s####.mob.com/conn
api.s####.mob.com/log4
api.s####.mob.com/snsconf

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrlock
/data/data/####/.statistics
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3BeginSession.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3BeginSession.json
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionApp.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionApp.json
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionCrash.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionDevice.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionDevice.json
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionOS.cls_temp
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionOS.json
/data/data/####/5BCA1135014D-0001-08EF-D3B4ADD72CA3SessionUser.cls_temp
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3BeginSession.cls_temp
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3BeginSession.json
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionApp.cls_temp
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionApp.json
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionDevice.cls_temp
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionDevice.json
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionOS.cls_temp
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionOS.json
/data/data/####/5BCA115400D9-0002-08EF-D3B4ADD72CA3SessionUser.cls_temp
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3BeginSession.cls_temp
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3BeginSession.json
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionApp.cls_temp
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionApp.json
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionDevice.cls_temp
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionDevice.json
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionOS.cls_temp
/data/data/####/5BCA116F0059-0001-0974-D3B4ADD72CA3SessionOS.json
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/TwitterAdvertisingInfoPreferences.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.crashlytics.prefs.xml
/data/data/####/com.crashlytics.sdk.android;answers;settings.xml
/data/data/####/com.crashlytics.settings.json
/data/data/####/crash_marker
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/initialization_marker
/data/data/####/io.fabric.sdk.android;fabric;io.fabric.sdk.andr...ng.xml
/data/data/####/joyshow_campus_config.xml
/data/data/####/libjiagu-1368591142.so
/data/data/####/mob_commons_1.xml
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/multidex.version.xml
/data/data/####/sa_294a12a4-35e5-4cd3-ad6e-cc477929ae60_1539969334292.tap
/data/data/####/sa_3c4f011b-acbf-450b-a91c-94d9485e8fa2_1539969334697.tap
/data/data/####/sa_4fb1c1c3-c7c1-48ff-af4f-479bfe786202_1539969391329.tap
/data/data/####/session_analytics.tap
/data/data/####/session_analytics.tap.tmp
/data/data/####/share_sdk_1.xml
/data/data/####/sharesdk.db
/data/data/####/sharesdk.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db
/data/data/####/webview.db-journal
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.rcTag
/data/media/####/.rc_lock
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml

Miscellaneous:

Executes next shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu-1368591142.so
sh

Loads the following dynamic libraries:

libjiagu-1368591142
neh
pl_droidsonroids_gif

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-NoPadding

Uses special library to hide executable bytecode.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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