Adware.Gexin.14603

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.3.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) ser####.dc####.net.cn:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) pic.1####.co:80
TCP(HTTP/1.1) hd.e####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(TLS/1.0) h.992####.com:443
TCP(TLS/1.0) ser####.dc####.net.cn:443
TCP(TLS/1.0) pic.fortun####.net:443
TCP(TLS/1.0) z.c####.com:443
TCP(TLS/1.0) gm.mm####.com:443
TCP(TLS/1.0) mfs.y####.com:443
TCP(TLS/1.0) 1####.217.20.110:443
TCP(TLS/1.0) c.c####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5225

DNS requests:

c####.g####.ig####.com
c####.g####.ig####.com
c####.mm####.com
c-h####.g####.com
c.c####.com
h.992####.com
hd.e####.com
pic.1####.co
pic.fortun####.net
pub-####.qin####.com
r1.y####.com
s96.c####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
ser####.dc####.net.cn
st####.dc####.net.cn
z2.c####.com

HTTP GET requests:

hd.e####.com/index.php?token=####&t=####
pic.1####.co/upload/vod/2019-04-14/201904141555220461.jpg
pic.1####.co/upload/vod/2019-04-28/201904281556418430.png
pic.1####.co/upload/vod/2019-04-28/201904281556418488.png
pic.1####.co/upload/vod/2019-04-28/201904281556418706.png
pic.1####.co/upload/vod/2019-04-29/201904291556505606.jpg
qin####.com.www.####.com/tdata_EDT356
t####.c####.q####.####.com/config/hz-hzv6.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####
ser####.dc####.net.cn/device/location

File system changes:

Creates the following files:

/data/data/####/.imei.txt
/data/data/####/.jg.ic
/data/data/####/MultiDex.lock
/data/data/####/__W2A__192.168.5.167.append.css
/data/data/####/__W2A__h.9920588app.xml
/data/data/####/__shortcut.js
/data/data/####/__template.json
/data/data/####/__wap2app.js
/data/data/####/__wap2app.ttf
/data/data/####/__wap2appbrowser.html
/data/data/####/__wap2appconfig.js
/data/data/####/__wap2appcontext.html
/data/data/####/__wap2apperror.html
/data/data/####/__wap2appplayer.js
/data/data/####/__wap2appquit.js
/data/data/####/__wap2appswiper.html
/data/data/####/__wap2apptabbar.css
/data/data/####/__wap2apptabbar.js
/data/data/####/_adio.dcloud.feature.ad.a.a.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/client_index.html
/data/data/####/clientid_igexin.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/dc_ad_type_key.xml
/data/data/####/eje3cnc
/data/data/####/f9e4f812a0b7
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/f_000006
/data/data/####/f_000007
/data/data/####/f_000008
/data/data/####/f_000009
/data/data/####/f_00000a
/data/data/####/f_00000b
/data/data/####/f_00000c
/data/data/####/f_00000d
/data/data/####/f_00000e
/data/data/####/f_00000f
/data/data/####/f_000010
/data/data/####/f_000011
/data/data/####/f_000012
/data/data/####/f_000013
/data/data/####/f_000014
/data/data/####/f_000015
/data/data/####/f_000016
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/html5Geo.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-1814334022.so
/data/data/####/manifest.json
/data/data/####/multidex.version.xml
/data/data/####/pdr.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/####/sitemap.json
/data/data/####/start_statistics_data.xml
/data/data/####/stream_permission.xml
/data/data/####/test_app
/data/data/####/umeng_general_config.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.imei.txt
/data/media/####/AdEnable.dat
/data/media/####/app.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.jdrainb.south.bin
/data/media/####/com.jdrainb.south.db
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/io.dcloud.feature.apsGt.GTNormalPushService 24704 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/io.dcloud.feature.apsGt.GTNormalPushService 24704 300 0

Loads the following dynamic libraries:

getuiext3
libjiagu-1814334022
so

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
RSA-ECB-PKCS1Padding

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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