Adware.Gexin.2832

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) up####.sdk.jig####.cn: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(HTTP/1.1) www.cx####.com:80
TCP(TLS/1.0) 1####.217.17.78:443
TCP(TLS/1.0) s####.j####.cn:443
TCP(TLS/1.0) res####.a####.com:443
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224
UDP s.j####.cn:19000
TCP 1####.121.49.81:7002

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
res####.a####.com
s####.j####.cn
s.j####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
up####.sdk.jig####.cn
www.cx####.com

HTTP GET requests:

t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iGj879
ti####.c####.l####.####.com/config/hz-hzv3.conf
www.cx####.com/api/getVersion?version=####
www.cx####.com/api/isLogin
www.cx####.com/api/member/getOrder

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
up####.sdk.jig####.cn/v1/push/sdk/postlist
www.cx####.com/api/setPushId

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/121f88f25718804aaf1078bfc5a64a48a3ffc484eb1c618....0.tmp
/data/data/####/1be4e04eb8aaac95e21003312d644cb7abbb6c2ca5546f1....0.tmp
/data/data/####/1d2b904cbeadfb72ed9546111a231c85.0
/data/data/####/22afdcf40ec1e61f259708064cf4d38557eabdcc651bd49....0.tmp
/data/data/####/2c8b55cd15175f68faed3e24d000068e51f42aa9a7247bb....0.tmp
/data/data/####/3a101803c4a734dc7d0d9432bb928f7dc6b4469a528f460....0.tmp
/data/data/####/3ec27b23b55d3d73cba15088f09e9ca363078588f9eb073....0.tmp
/data/data/####/7d591aa6f130c3a895df9e976ffcd9c6a7e18427952be55....0.tmp
/data/data/####/87ac4abb9481eca8de35fa0f879202b6a385b610c16fbc5....0.tmp
/data/data/####/DB_NAME_CLIENT-journal
/data/data/####/JPushSA_Config.xml
/data/data/####/SDK_API.xml
/data/data/####/amap_web_logo.xml
/data/data/####/appPackageNames
/data/data/####/autonavi_Resource1_1_0.jar
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/d.xml
/data/data/####/db6c94caf2c879c15207813c91f031fecc0c1325c41d71a....0.tmp
/data/data/####/disk_entries_list_image_cache_-2043093900.xml
/data/data/####/f248eb390d9a159760686ea64fa6de8c05ce34c2f5e2b14....0.tmp
/data/data/####/ff64eb0aa92b8a40a9c6ca54df8efe1a3d6b479fa90ce24....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_local_notification.db
/data/data/####/jpush_local_notification.db-journal
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_statistics.db
/data/data/####/jpush_statistics.db-journal
/data/data/####/jpush_uncaughtexception_file
/data/data/####/k.store
/data/data/####/libjiagu1948120063.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/multidex.version.xml
/data/data/####/mutex
/data/data/####/pref.xml
/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/####/shared_preferences_client.xml
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/tray.db-journal
/data/data/####/tts_config.xml
/data/media/####/.nomedia
/data/media/####/.push_deviceid
/data/media/####/1537442225369.db
/data/media/####/1537442247792.db
/data/media/####/1537442260635.db
/data/media/####/1537442267199.db
/data/media/####/alsn20170807.db
/data/media/####/alsn20170807.db-journal
/data/media/####/app.db
/data/media/####/com.delelong.yzcx.bin
/data/media/####/com.delelong.yzcx.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/logs.txt
/data/media/####/mystyle_sdk_1512546238_0100.data
/data/media/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.thirdparty.push.getui.GTPushService 24715 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu1948120063.so
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.thirdparty.push.getui.GTPushService 24715 300 0

Loads the following dynamic libraries:

AMapSDK_NAVI_v6_3_0
getuiext2
jcore111
libjiagu1948120063
ztcodec2

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

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

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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