Adware.Gexin.9160

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) d####.opensp####.cn:80
TCP(HTTP/1.1) h####.opensp####.cn:80
TCP(HTTP/1.1) pin####.qq.com:80
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
a.appj####.com
and####.cli####.go####.com
c####.g####.ig####.com
c-h####.g####.com
d####.opensp####.cn
h####.opensp####.cn
pi####.qq.com
pin####.qq.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

h####.opensp####.cn/launchconfig?t=####&p=aXZlc####
t####.c####.q####.####.com/tdata_AXX896
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_Fus136
ti####.c####.l####.####.com/config/hz-hzv3.conf
ti####.c####.l####.####.com/tdata_EDT369

HTTP POST requests:

a####.u####.com/app_logs
a.appj####.com/ad-service/ad/mark
c-h####.g####.com/api.php?format=####&t=####
d####.opensp####.cn/index.php/clientrequest/clientcollect/isCollect
pi####.qq.com/mstat/report/?index=####
pin####.qq.com/request
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.log.lock
/data/data/####/.log.ls
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/cd5d6063343a
/data/data/####/com.iflytek.id.xml
/data/data/####/com.iflytek.msc.xml
/data/data/####/com.zhongjiaochuxing.driver.mid.world.ro.xml
/data/data/####/com.zhongjiaochuxing.driver_preferences.xml
/data/data/####/com.zhongjiaochuxing.driver_preferences.xml (deleted)
/data/data/####/com.zhongjiaochuxing.driver_preferences.xml.bak
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/ifly_launch_lib.xml
/data/data/####/iflytek_state_com.zhongjiaochuxing.driver.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/pri_tencent_analysis.db_com.zhongjiaochuxing.dr...ournal
/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/####/tdata_AXX896
/data/data/####/tdata_AXX896.jar
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_Fus136
/data/data/####/tdata_Fus136.jar
/data/data/####/tencent_analysis.db_com.zhongjiaochuxing.driver-journal
/data/data/####/tencent_analysis.db_com.zhongjiaochuxing.driver...ournal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/zjDriver.db-journal
/data/media/####/.mid.txt
/data/media/####/.mid.txt1000001
/data/media/####/.mid.txt3
/data/media/####/.nomedia
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zhongjiaochuxing.driver.bin
/data/media/####/com.zhongjiaochuxing.driver.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/iflyworkdir_test
/data/media/####/tdata_AXX896
/data/media/####/tdata_BAI450
/data/media/####/tdata_Fus136
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.services.push.PushService 25790 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.services.push.PushService 25790 300 0

Loads the following dynamic libraries:

MtaNativeCrash
getuiext2
libjiagu
msc

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding
RSA-NONE-PKCS1PADDING

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding

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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