Adware.Gexin.8259

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) www.weica####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) amdc####.m.ta####.com:80
TCP(HTTP/1.1) 47.93.1####.141:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP sdk.o####.t####.####.com:5224
TCP openj####.m.ta####.com:80
TCP c####.g####.ig####.com:5226
TCP ope####.m.ta####.com:443

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
a####.u####.com
ag####.m.ta####.com
amdc####.m.ta####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.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
umen####.m.ta####.com
umengj####.m.ta####.com
www.weica####.com

HTTP GET requests:

qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/tdata_FhD658
t####.c####.q####.####.com/tdata_kgM272
t####.c####.q####.####.com/tdata_vHH584
ti####.c####.l####.####.com/config/hz-hzv3.conf
www.weica####.com/pubapi1/advert_one?position=####&myversion=####&myclie...
www.weica####.com/pubapi1/cert_no?myversion=####&myclient=####
www.weica####.com/upload/feed/2019/1/29/20190129140402102.png

HTTP POST requests:

a####.u####.com/app_logs
amdc####.m.ta####.com/amdc/mobileDispatch?appkey=####&deviceId=####&plat...
and####.b####.qq.com/rqd/async?aid=####
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/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1002
/data/data/####/1004
/data/data/####/ACCS_BINDumeng;548d6f26fd98c57bca0002ba.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK.xml (deleted)
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/SP_AROUTER_CACHE.xml
/data/data/####/accs.db-journal
/data/data/####/acdedefd13d4
/data/data/####/agoo.pid
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.cjmrh.app.BETA_VALUES.xml
/data/data/####/com.cjmrh.app.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjA3MDgx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjAxNTcx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjE2OTg5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjEyNTYx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjI0ODQy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjI5Njg5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjIwNzYw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjM0NTM3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjM5NDY1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQ1Mjg4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQ2NjY3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQ5Mzgy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQwNzI0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQxOTYy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjQzOTk4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjUyOTcx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ5MDEwMjY5MDE2;
/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/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&6.3_1549010201638_envelope.log
/data/data/####/i==1.2.0&&6.3_1549010207355_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-2064392418.so
/data/data/####/local_crash_lock
/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/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_FhD658
/data/data/####/tdata_FhD658.jar
/data/data/####/tdata_kgM272
/data/data/####/tdata_kgM272.jar
/data/data/####/tdata_vHH584
/data/data/####/tdata_vHH584.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_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/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/####/0fc1ff2dab38440b9b0ddb93e66543df
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.cjmrh.app.bin
/data/media/####/com.cjmrh.app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/eb24ca1167774e3d9224cbe247f18ee2
/data/media/####/sysid.dat
/data/media/####/tdata_FhD658
/data/media/####/tdata_kgM272
/data/media/####/tdata_vHH584
/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
/system/bin/sh -c getprop
/system/bin/sh -c type su
<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":"umeng:548d6f26fd98c57bca0002ba","utdid":"XFQFGH+4tGgDAGdzx1GCcO3s","sdkVersion":"221"} -I agoodm.m.taobao.com -O 80 -T -Z
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.wcx.oxlib.push.getui.GetuiService 24264 300 0
cat /sys/class/net/wlan0/address
chmod 500 <Package Folder>/files/DaemonServer
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
logcat -d -v threadtime
ls /sys/class/thermal
mount
sh

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu-2064392418
tnet-3.1

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-GCM-NoPadding

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 APN settings.

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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