Adware.Gexin.13015

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) api.cashtou####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) cashtou####.oss-cn-####.aliy####.com:80
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) co####.cdn.fee####.com:80
TCP(HTTP/1.1) norma-e####.m####.com:80
TCP(HTTP/1.1) ad.p####.huisuo####.com:80
TCP(HTTP/1.1) api.a####.cp.####.com:80
TCP(TLS/1.0) fp.fraudme####.cn:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) is.sn####.com:443
TCP(TLS/1.0) co####.cdn.fee####.com:443
TCP(TLS/1.0) sdkc####.e.360.cn:443
TCP(TLS/1.0) scd.col####.cashtou####.com:8106
TCP(TLS/1.0) api####.me####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5225

DNS requests:

ad.p####.huisuo####.com
api####.me####.com
api.a####.cp.####.com
api.cashtou####.com
b####.g####.com
c####.g####.com
c####.g####.ig####.com
c-h####.g####.com
cashtou####.oss-cn-####.aliy####.com
co####.cdn.fee####.com
f####.cashtou####.com
fp.fraudme####.cn
is.sn####.com
norma-e####.m####.com
plb####.u####.com
scd.col####.cashtou####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sdkc####.e.360.cn
u####.u####.com

HTTP GET requests:

api.a####.cp.####.com/local/channel/get
cashtou####.oss-cn-####.aliy####.com/package/huitoutiaoH001-59-4.0.6.4.txt
co####.cdn.fee####.com/feedadx/pkgcheck
norma-e####.m####.com/android/exchange/getpublickey.do
t####.c####.q####.####.com/config/hz-hzv6.conf

HTTP POST requests:

ad.p####.huisuo####.com/cash/v1/ad/strategy?id=####&appVersion=####
api.a####.cp.####.com/attention/common/configs
api.cashtou####.com/frontend/config/bean
api.cashtou####.com/frontend/news/channel?userId=####&loginId=####
api.cashtou####.com/frontend/video/channel/info?userId=####&loginId=####
c####.g####.com/api.php?format=####&t=####
norma-e####.m####.com/push/android/external/add.do
sdk-ope####.g####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.channel.all.info
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.td-3
/data/data/####/.tdck
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/a==7.5.4&&4.0.6.4_1556624041679_envelope.log
/data/data/####/cloud_switch_cache
/data/data/####/com.cashtoutiao-journal
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDa...ml.bak
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/core_update
/data/data/####/core_update_locker
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDQwNzQx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDU2NjAy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDUwNzI0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDY3MjYz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDYxNjA2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDc0Njg5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDg2ODAw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDgwNzMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MDk0NzQw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTU2NjI0MTAyMzY3;
/data/data/####/device_collector
/data/data/####/device_collector_locker
/data/data/####/downloader.db-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/fm_shared.xml
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gis.db-journal
/data/data/####/gtc.db-journal
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&4.0.6.4_1556624040773_envelope.log
/data/data/####/i==1.2.0&&4.0.6.4_1556624050845_envelope.log
/data/data/####/i==1.2.0&&4.0.6.4_1556624074700_envelope.log
/data/data/####/i==1.2.0&&4.0.6.4_1556624094805_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu767591267.so
/data/data/####/log_reupload_task
/data/data/####/log_reupload_task_locker
/data/data/####/ml-region-10.db.tmp
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.xml
/data/data/####/overall_config.xml
/data/data/####/profile_task
/data/data/####/profile_task_locker
/data/data/####/profile_torch_platform
/data/data/####/pull_live_sp.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/####/sensorsdata.xml
/data/data/####/sensorsdata.xml (deleted)
/data/data/####/torch_sdk_config.xml
/data/data/####/toutiao.preferences.xml
/data/data/####/tt_sdk_settings.xml
/data/data/####/ttopenadsdk.xml
/data/data/####/ttopensdk.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/uninstall_apk
/data/data/####/uninstall_apk_locker
/data/data/####/waitingDown
/data/data/####/waitingDown_locker
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.sfp
/data/media/####/.td-3
/data/media/####/.tdck
/data/media/####/.testf
/data/media/####/.umm.dat
/data/media/####/2019-04-30.log.txt
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.cashtoutiao.bin
/data/media/####/com.cashtoutiao.db
/data/media/####/com.cashtoutiao_.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/sysid.dat
/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>.getuipush.GeTuiPushService 24553 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop net.dns1
getprop ro.build.version.emui
getprop ro.letv.release.version
getprop ro.vivo.os.build.display.id
ls /
ls /sys/class/thermal
mount
ps
sh

Loads the following dynamic libraries:

getuiext3
libjiagu767591267
tongdun

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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

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.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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