Adware.Gexin.4543

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) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) gs.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
b####.g####.com
c####.g####.com
c####.g####.ig####.com
c-h####.g####.com
gs.g####.com
plb####.u####.com
s####.o####.net
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:

t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_vHH584
t####.c####.q####.####.com/tdata_wmL809

HTTP POST requests:

c####.g####.com/api.php?format=####&t=####
gs.g####.com/encryption/key/fetch
gs.g####.com/geshu/sdkStatistics/bindInfo
gs.g####.com/geshu/sdkStatistics/uploadBI
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/####/.jg.ic
/data/data/####/ACCS_SDK.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MessageStore.db
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db
/data/data/####/MsgLogStore.db-journal
/data/data/####/MultiDex.lock
/data/data/####/_nohttp_cache_db.db
/data/data/####/_nohttp_cache_db.db-journal
/data/data/####/_nohttp_cookies_db.db
/data/data/####/_nohttp_cookies_db.db-journal
/data/data/####/accs.db
/data/data/####/accs.db-journal
/data/data/####/config.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDY3NTIz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDgxNTA0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDk1ODIw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDk3MzE1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDkxMjg3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMDkyMTAz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQxNjkzMTAzMDcy;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gaClientId
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gtc.db-journal
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&3.8.14.251_1541693082089_envelope.log
/data/data/####/ias.db-journal
/data/data/####/ias_sp.xml
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu-1087609770.so
/data/data/####/multidex.version.xml
/data/data/####/orayremote.conf
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/tdata_vHH584
/data/data/####/tdata_vHH584.jar
/data/data/####/tdata_wmL809
/data/data/####/tdata_wmL809.jar
/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/####/umeng_message_state.xml
/data/data/####/webview.db
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromium.db-journal (deleted)
/data/data/####/webviewCookiesChromiumPrivate.db
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal (deleted)
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.umm.dat
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/client_week4.log
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.oray.sunlogin.service.bin
/data/media/####/com.oray.sunlogin.service.db
/data/media/####/com.oray.sunlogin.service_.db
/data/media/####/tdata_vHH584
/data/media/####/tdata_wmL809
/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>.OrayGTPushService 25532 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1087609770.so
logcat -v time -s SunloginClient:I -s LocalSocketSunlogin:I
ls /sys/class/thermal

Loads the following dynamic libraries:

OraySunloginService
getuiext2
libjiagu-1087609770

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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.

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