Adware.Gexin.18300

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) q####.c####.l####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) api.w####.cn:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(TLS/1.0) dualsta####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) api.w####.cn:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) ot####.x2.tc.####.com:443
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.ig####.com:5225
TCP 60.2####.190.74:9401

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
and####.b####.qq.com
api.w####.cn
c-h####.g####.com
cm-1####.ig####.com
log.u####.com
mt####.go####.com
plb####.u####.com
pub-####.qin####.com
s.b####.g####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

api.w####.cn/conn_info/get?sign=####&os=####&sex=####&ov=####&width=####...
q####.c####.l####.####.com/config/hz-hzv6.conf
qin####.com.www.####.com/tdata_EDT369
sdk.o####.p####.####.com/api/addr.htm
ti####.c####.l####.####.com/tdata_MkX219
ti####.c####.l####.####.com/tdata_RTc910
ti####.c####.l####.####.com/tdata_XeE960
ti####.c####.l####.####.com/tdata_mtl581

HTTP POST requests:

a####.u####.com/app_logs
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1002
/data/data/####/1004
/data/data/####/4bf9269f-fa94-433f-ae40-5d29c9e90913.zip (deleted)
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/Preferences.xml
/data/data/####/RedPrefs.xml
/data/data/####/bugly_db_-journal
/data/data/####/cache.db
/data/data/####/cache.db-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.paiba.app000005.BETA_VALUES.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9zaGFyZV8xNTcxNDkzOTg0NDUz;
/data/data/####/dW1weF9zaGFyZV8xNTcxNDkzOTg0NTE1;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/fb5e0237eb5a
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/info.lock
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu499387358.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/patch-1355a814.apk
/data/data/####/patch.apk
/data/data/####/patch.retry
/data/data/####/pref.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/####/share.db-journal
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_RTc910
/data/data/####/tdata_RTc910.jar
/data/data/####/tdata_XeE960
/data/data/####/tdata_XeE960.jar
/data/data/####/tdata_mtl581
/data/data/####/tdata_mtl581.jar
/data/data/####/temp.apk
/data/data/####/tmpPatch.apk
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/media/####/.cuid
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.paiba.app000005.bin
/data/media/####/com.paiba.app000005.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_MkX219
/data/media/####/tdata_RTc910
/data/media/####/tdata_XeE960
/data/media/####/tdata_mtl581
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.common.push.IgPushUserService 24534 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
mount
sh

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu499387358

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding
AES-GCM-NoPadding

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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