Adware.Gexin.11525

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) o####.map.b####.com:80
TCP(HTTP/1.1) xinsuda####.mifeng####.cn:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) rs.eas####.com:80
TCP(HTTP/1.1) k####.eas####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) f####.mifeng####.cn:80
TCP(HTTP/1.1) 3####.97.9.53:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) adt.x####.com:443
TCP(TLS/1.0) t.growi####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) api.51dat####.com:443
TCP(TLS/1.0) api.growi####.com:443
TCP(TLS/1.0) t####.growi####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
adt.x####.com
and####.b####.qq.com
api.51dat####.com
api.growi####.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
l####.tbs.qq.com
loc.map.b####.com
log.u####.com
o####.map.b####.com
pub-####.qin####.com
rs.eas####.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####.growi####.com
t.growi####.com
xinsuda####.mifeng####.cn

HTTP GET requests:

f####.mifeng####.cn/1.gif?package_name=####&source_id=####&system=####&d...
k####.eas####.com/v1/visitors/tenants/20888
rs.eas####.com/easemob/server.json?sdk_version=####&app_key=####&file_ve...
t####.c####.q####.####.com/tdata_Rnl693
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_fEV688
t####.c####.q####.####.com/tdata_siA393
ti####.c####.l####.####.com/config/hz-hzv3.conf
ti####.c####.l####.####.com/tdata_EDT369

HTTP POST requests:

and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
loc.map.b####.com/sdk.php
o####.map.b####.com/offline_loc
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####
xinsuda####.mifeng####.cn/Additional/getCustomerPhone
xinsuda####.mifeng####.cn/Bank/getcity
xinsuda####.mifeng####.cn/Config/getAppList
xinsuda####.mifeng####.cn/Xinsudai/checkUpdate
xinsuda####.mifeng####.cn/Xinsudai/getIndexV2
xinsuda####.mifeng####.cn/Xinsudai/loanAmountAndDataValidation

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/1554248014656_2289
/data/data/####/1554248014656_2289 (deleted)
/data/data/####/1554248014794_2289
/data/data/####/1554248014808_2289
/data/data/####/1554248014863_2289
/data/data/####/1554248015003_2289
/data/data/####/1554248015887_2289
/data/data/####/1554248016027_2289
/data/data/####/1554248017162_2289
/data/data/####/1554248017931_2289
/data/data/####/1554248018387.log
/data/data/####/TDCloudSettingsConfigBD7BEAB7EF394A55AEC4BFAC6174AAE7.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/####/authStatus_cn.mifengkong.twotypeloan;remote.xml
/data/data/####/bugly_db_-journal
/data/data/####/cdcc6ccec2d9
/data/data/####/cn.mifengkong.jianrong.tab.xml
/data/data/####/cn.mifengkong.twotypeloan_preferences.xml
/data/data/####/config.json
/data/data/####/core_info
/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/####/gkt-journal
/data/data/####/growing.db
/data/data/####/growing.db-journal
/data/data/####/growing_ecsid
/data/data/####/growing_persist_data.xml
/data/data/####/growing_profile.xml
/data/data/####/growing_server_pref.xml
/data/data/####/growingio.lock-journal
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/httpclient-req--217065849.cache
/data/data/####/httpclient-req--217065849.cache (deleted)
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu.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/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/server.json
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_Rnl693
/data/data/####/tdata_Rnl693.jar
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_fEV688
/data/data/####/tdata_fEV688.jar
/data/data/####/tdata_siA393
/data/data/####/tdata_siA393.jar
/data/data/####/tdid.xml
/data/data/####/umeng_socialize.xml
/data/data/####/umeng_socialize.xml.bak
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.tcookieid
/data/media/####/app.db
/data/media/####/cn.mifengkong.twotypeloan.bin
/data/media/####/cn.mifengkong.twotypeloan.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/conlts.dat
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_Rnl693
/data/media/####/tdata_Soq141
/data/media/####/tdata_fEV688
/data/media/####/tdata_siA393
/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 androVM.vbox_dpi
/system/bin/sh -c getprop gsm.sim.state
/system/bin/sh -c getprop gsm.sim.state2
/system/bin/sh -c getprop qemu.sf.fake_camera
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.debuggable
/system/bin/sh -c getprop ro.genymotion.version
/system/bin/sh -c getprop ro.secure
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/cn.mifengkong.loan.service.GeTuiPushService 25584 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
getprop androVM.vbox_dpi
getprop gsm.sim.state
getprop gsm.sim.state2
getprop qemu.sf.fake_camera
getprop ro.board.platform
getprop ro.debuggable
getprop ro.genymotion.version
getprop ro.product.cpu.abi
getprop ro.secure
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/cn.mifengkong.loan.service.GeTuiPushService 25584 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
hyphenate
libjiagu
locSDK7a

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding

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.

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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