Adware.Gexin.9150

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) api.icaipia####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) p####.tc.qq.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) api.icaipia####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) res####.a####.com:443

DNS requests:

a####.u####.com
amap####.cn-hang####.oss####.####.com
api.icaipia####.com
imgc####.qq.com
mi.g####.qq.com
p.wangca####.com
p.zhangko####.cn
res####.a####.com
s####.e.qq.com
s0.icaipia####.com
so####.icaipia####.com
ssl.gst####.com
www.go####.com
www.gst####.com

HTTP GET requests:

api.icaipia####.com/api/v1/c/p?p=####
api.icaipia####.com/api/v2/rank/landing?lottery_key=####
api.icaipia####.com/api/v5/server/timestamp
api.icaipia####.com/api/v6/lotterynums/latest/all
api.icaipia####.com/api/v7/social/hotlist?count=####&page=####
api.icaipia####.com/api/v7/social/topandnoticelist
api.icaipia####.com/static/icon/avatar.jpg?imageVi####
mi.g####.qq.com/gdt_mview.fcg?datatype=####&posid=####&count=####&r=####...
p####.tc.qq.com/qzone/biz/gdt/mod/android/AndroidAllInOne/proguard/his/r...
sh.wagbr####.aliyun####.com/sdkcoor/android/x86/libJni_wgs2gcj.so
t####.c####.q####.####.com/avatar/190124/ad8e5f58e31d7ff85ff41ddbfc4204b...
ti####.c####.l####.####.com/avatar/190225/99df19092bf77f247827ff11818c4c...
ti####.c####.l####.####.com/avatar/190225/d423b68815854cd3a3ed6b345519b9...
ti####.c####.l####.####.com/avatar/190225/e6eacb84df3399c550ad8f47ec4bed...
ti####.c####.l####.####.com/avatar/190226/30dcf199973ddb194faace2e720ae4...

HTTP POST requests:

a####.u####.com/app_logs
api.icaipia####.com/api/v5/server/activate
api.icaipia####.com/api/v5/server/config
s####.e.qq.com/activate

File system changes:

Creates the following files:

/data/data/####/-1067956839-346359608
/data/data/####/-117889334996384371
/data/data/####/-14932529442085446822
/data/data/####/-149325294475075523
/data/data/####/-157045110-1743029638
/data/data/####/-1743051465758344189
/data/data/####/-17893987121944668222
/data/data/####/-2020606643-932857568
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/040e816d7adcdbfe3ca7e198cd71d7e69aacfe83a7f8eed....0.tmp
/data/data/####/040e816d7adcdbfe3ca7e198cd71d7e69aacfe83a7f8eed...91f5.0
/data/data/####/1271118148-138790719
/data/data/####/1463226077-1722291537
/data/data/####/1552736352544.0
/data/data/####/1672293057-357459473
/data/data/####/1785704582-119718588
/data/data/####/1887414811080.0
/data/data/####/21090119561046727059
/data/data/####/24148dc6a833f8773130366a096b02f3e82c66646d8d400....0.tmp
/data/data/####/253193064-1619705854
/data/data/####/253193064-2039568853
/data/data/####/367472543943249124
/data/data/####/4687417197258.0
/data/data/####/583066204-1457457844
/data/data/####/6252727428303.0
/data/data/####/68acffb91cb2c8c4755a415307cf2afc.0
/data/data/####/BuglySdkInfos.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/__cfg_lk_1312
/data/data/####/b7fe75cb4bafb843baaf814bfca1fc435d90d76223f134d....0.tmp
/data/data/####/bf421905a40eb5f90b1297c5e62e47c9aac5ec3153b07b9....0.tmp
/data/data/####/c6351d4de2d21ce39b1a6d41dcfb36f31c886fde7a7f330....0.tmp
/data/data/####/cache.xml
/data/data/####/cache_int.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.mango.kaijiangqixingcai_preferences.xml
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/fcde9fbd86e1df9482954d2f8808de22d56cade3c01a5a8....0.tmp
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_suid
/data/data/####/getui_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/libjiagu.so
/data/data/####/loctemp.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/multidex.version.xml
/data/data/####/pref.xml
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/update_lc
/data/data/####/webview.db-journal
/data/media/####/.nomedia
/data/media/####/2k21vfy2cvwj5p3cgh90dewr1
/data/media/####/6ps7ytm0q9suaubk4e5vxux7p
/data/media/####/als.db
/data/media/####/als.db-journal

Miscellaneous:

Executes the following shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu.so

Loads the following dynamic libraries:

getuiext2
libjiagu

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
DES
RSA-ECB-PKCS1Padding

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 running apps.

Displays its own windows over windows of other apps.

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