Adware.Gexin.4533

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) pub-####.qin####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) aliyun-####.al####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) a####.a####.m.####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) hotfix####.aliy####.com:443
TCP openj####.m.ta####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227
TCP ope####.m.ta####.com:443

DNS requests:

7j####.c####.z0.####.com
a####.m.ta####.com
a####.man.aliy####.com
accscdn####.m.ta####.com
acs4pu####.m.ta####.com
ag####.m.ta####.com
c####.g####.ig####.com
c-h####.g####.com
hotfix####.aliy####.com
mpush####.al####.com
plb####.u####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com

HTTP GET requests:

pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_vxj811

HTTP POST requests:

a####.a####.m.####.com/amdc/mobileDispatch?appkey=####&deviceId=####&pla...
aliyun-####.al####.com/config
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/ACCS_BIND24737624.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/MultiDex.lock
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/bc614bbe5445
/data/data/####/com.caiqr.zwwj_preferences.xml
/data/data/####/core_info
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjM1ODIx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjM5NzMw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjQ5NDcy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjU0NjE1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjU1Njcy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjU3NDg0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjU4ODEz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjUzMzcw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjY4ODAy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjg3NjU5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjgxMjk3MjY3;
/data/data/####/eudemon
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&3.1.0_1541681240308_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu954928131.so
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/multidex.version.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/####/sp_sophix.xml
/data/data/####/tbs_download_config.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_vxj811
/data/data/####/tdata_vxj811.jar
/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_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromium.db-journal (deleted)
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/25b2949dd6fd4462854b3ae83ce65a60
/data/media/####/3125a86988554b51ac018a64c25824a7
/data/media/####/6929eeefcf3849aba39ef7eac36a8ce0
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.caiqr.zwwj.bin
/data/media/####/com.caiqr.zwwj.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/f03db8439f514971bf08f83e7e2cfd9d
/data/media/####/inapp_20181108.log
/data/media/####/tbslog.txt
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/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/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"24737624","utdid":"W+QwU8E/vWADAGdzx1EF2vsX","sdkVersion":"221"} -I agoodm.m.taobao.com -O 80 -T -Z
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GeTuiPushService 24405 300 0
cat /sys/class/net/wlan0/address
chmod 500 <Package Folder>/files/DaemonServer
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu954928131.so
getprop ro.product.cpu.abi
ls /sys/class/thermal
mount
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GeTuiPushService 24405 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu954928131
tnet-3.1
ut_c_api

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

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.

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