Adware.Gexin.5376

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) c-h####.g####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) wechat_####.mifeng####.cn:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) xinsuda####.mifeng####.cn:80
TCP(HTTP/1.1) et2-na6####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) k####.eas####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) t.eas####.com:80
TCP(HTTP/1.1) f####.mifeng####.cn:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) adt.x####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
adt.x####.com
and####.b####.qq.com
api.map.b####.com
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c-h####.g####.com
f####.mifeng####.cn
i.t####.com
k####.eas####.com
loc.map.b####.com
log.u####.com
mt####.go####.com
o####.map.b####.com
s####.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
t.eas####.com
wechat_####.mifeng####.cn
xinsuda####.mifeng####.cn

HTTP GET requests:

et2-na6####.wagbr####.ali####.####.com/bar/get/579c642ce0f55aeeb1001ebc/...
f####.mifeng####.cn/1.gif?plat_version=####&package_name=####&source_id=...
k####.eas####.com/v1/visitors/tenants/20888?sdkVersion=####&appKey=####&...
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_vxj811
ti####.c####.l####.####.com/config/hz-hzv3.conf
xinsuda####.mifeng####.cn/Adv/getVipAdv?code=####&uid=####&app_union_nam...
xinsuda####.mifeng####.cn/JsFill/urlList?uid=####&app_union_name=####&to...

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
t.eas####.com/import
wechat_####.mifeng####.cn/adv/appacivite
xinsuda####.mifeng####.cn/Additional/getCustomerPhone
xinsuda####.mifeng####.cn/Bank/getcity
xinsuda####.mifeng####.cn/Config/getAppList

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/1543326010864_2276
/data/data/####/1543326010905_2276
/data/data/####/1543326011063_2276
/data/data/####/1543326011092_2276
/data/data/####/1543326011196_2276
/data/data/####/1543326011632_2276
/data/data/####/1543326011700_2276
/data/data/####/1543326011700_2276 (deleted)
/data/data/####/1543326012437_2298
/data/data/####/1543326012441_2298
/data/data/####/1543326013304_2372
/data/data/####/1543326013310_2372
/data/data/####/1543326013325_2372
/data/data/####/1543326013362_2298
/data/data/####/1543326013409.log
/data/data/####/1543326013410_2372
/data/data/####/1543326013413_2372
/data/data/####/1543326013414_2276
/data/data/####/1543326013500_2298
/data/data/####/1543326013545_2298
/data/data/####/1543326014470_2372
/data/data/####/1543326014514_2298
/data/data/####/1543326016938_2557
/data/data/####/1543326016954_2557
/data/data/####/1543326016955_2557
/data/data/####/1543326017079_2276
/data/data/####/1543326018269_2557
/data/data/####/MultiDex.lock
/data/data/####/TDCloudSettingsConfig760939ED7FCE4502BDF34E7B60...ml.bak
/data/data/####/TDCloudSettingsConfig760939ED7FCE4502BDF34E7B60E94D14.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_longtime1.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/TDpref_shorttime1.xml
/data/data/####/XinSuDai.db
/data/data/####/XinSuDai.db-journal
/data/data/####/analytics-android-cn.mifengkong.huaxiaapp.xml
/data/data/####/authStatus_cn.mifengkong.huaxiaapp;remote.xml
/data/data/####/bugly_db_-journal
/data/data/####/cn.mifengkong.huaxiaapp.tmp
/data/data/####/cn.mifengkong.huaxiaapp_preferences.xml
/data/data/####/cn.mifengkong.jianrong.tab.xml
/data/data/####/crashrecord.xml
/data/data/####/device_id.xml.xml
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/httpclient-req--1738522532.cache
/data/data/####/httpclient-req--1738522532.cache (deleted)
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/kefuinfo.xml
/data/data/####/libcuid.so
/data/data/####/libjiagu2046592501.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/not_clear_sp.xml
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/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/####/security_info
/data/data/####/share_name.xml
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_vxj811
/data/data/####/tdata_vxj811.jar
/data/data/####/tdid.xml
/data/data/####/umeng_socialize.xml
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.tcookieid
/data/media/####/app.db
/data/media/####/cn.mifengkong.huaxiaapp.bin
/data/media/####/cn.mifengkong.huaxiaapp.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/conlts.dat
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/data/media/####/test.log
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/cn.mifengkong.loan.service.GeTuiPushService 25323 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/cn.mifengkong.loan.service.GeTuiPushService 25323 300 0

Loads the following dynamic libraries:

Bugly
free-reflection
getuiext2
hyphenate
hyphenate_av
hyphenate_av_recorder
libjiagu2046592501
locSDK7b
sqlite

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-GCM-NoPadding
DES-CBC-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.

Displays its own windows over windows of other apps.

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