Adware.Gexin.12175

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) c-h####.g####.com:80
TCP(HTTP/1.1) norma-e####.m####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) lbs.net####.im:443
TCP(TLS/1.0) gd-s####.j####.cn:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) s####.j####.cn:443
TCP(TLS/1.0) 2####.58.211.110:443
TCP(TLS/1.0) adt.x####.com:443
TCP(TLS/1.0) wa####.127.net:443
TCP(TLS/1.0) t####.j####.cn:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227
UDP s.j####.cn:19000
TCP 1####.121.49.69:7007

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
adt.x####.com
ali-s####.j####.cn
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c-h####.g####.com
gd-s####.j####.cn
lbs.net####.im
norma-e####.m####.com
pub-####.qin####.com
s####.j####.cn
s.j####.cn
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sis.j####.io
t####.j####.cn
wa####.127.net

HTTP GET requests:

norma-e####.m####.com/android/exchange/getpublickey.do
qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Jga153
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_duV457
t####.c####.q####.####.com/tdata_mSr887

HTTP POST requests:

a####.exc.mob.com/errconf
c-h####.g####.com/api.php?format=####&t=####
norma-e####.m####.com/push/android/external/add.do
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/anr/traces.txt
/data/data/####/.duid
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1554994298213_2320
/data/data/####/1554994298544_2320
/data/data/####/1554994299057_2320
/data/data/####/1554994299159_2320
/data/data/####/1554994300495_2320
/data/data/####/1554994300801_2320
/data/data/####/1554994301041_2320
/data/data/####/1554994301239_2320
/data/data/####/1554994304560_2515
/data/data/####/1554994304793_2515
/data/data/####/1554994306469_2515
/data/data/####/1554994306651_2515
/data/data/####/1554994306844_2515
/data/data/####/1554994314024_2748
/data/data/####/1554994314204_2748
/data/data/####/1554994315453_2748
/data/data/####/1554994318029_2748
/data/data/####/1554994323119_2880
/data/data/####/1554994323424_2880
/data/data/####/1554994326282_2986
/data/data/####/1554994326523_2986
/data/data/####/1554994327616_2986
/data/data/####/1554994329147_2986
/data/data/####/1554994329758_2986
/data/data/####/1554994332891_3103
/data/data/####/1554994333113_3103
/data/data/####/1554994335621_3103
/data/data/####/1554994343774_3103
/data/data/####/1554994347290_3232
/data/data/####/1554994347517_3232
/data/data/####/1554994349088_3232
/data/data/####/1554994349219_3232
/data/data/####/1554994349403_3232
/data/data/####/1554994351832_3337
/data/data/####/1554994351980_3337
/data/data/####/1554994353056_3337
/data/data/####/1554994353212_3337
/data/data/####/1554994353660_3337
/data/data/####/1554994370038_3454
/data/data/####/1554994370397_3454
/data/data/####/1554994371654_3454
/data/data/####/1554994372343_3454
/data/data/####/28a64d23-1379-4c0e-8850-5cff1496cc13
/data/data/####/30d5e460-d982-4e0b-b3ab-f0f0853e61bd
/data/data/####/45d88ea8-53f6-4c47-a2ad-66a0b336f2f8
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/Demo.null.xml
/data/data/####/HiHiConfig.xml
/data/data/####/MultiDex.lock
/data/data/####/NIMSDK_Config_3590e69e27ba8fb38863482f528ad5bc.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_cloudcontrol2.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_longtime1.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/UIKit.null.xml
/data/data/####/appPackageNames_v2
/data/data/####/ce6b3e5a-f39c-4cea-b5c6-6f8c3b0df0f8
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.jiayinghudong.xiaoban_preferences.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/data.mdb
/data/data/####/domain_1
/data/data/####/f31f6fbd-2412-4e6e-8970-e2b02feb6453
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/iv
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_uncaughtexception_file
/data/data/####/libjiagu1001461647.so
/data/data/####/lock.mdb
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.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/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/salt
/data/data/####/tdata_Jga153
/data/data/####/tdata_Jga153.jar
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_duV457
/data/data/####/tdata_duV457.jar
/data/data/####/tdata_mSr887
/data/data/####/tdata_mSr887.jar
/data/data/####/tdid.xml
/data/media/####/.artc_lock
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.push_deviceid
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.tcookieid
/data/media/####/.wkl
/data/media/####/2019-04-11.log.txt
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.jiayinghudong.xiaoban.bin
/data/media/####/com.jiayinghudong.xiaoban.db
/data/media/####/demo_20190411.log
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/nim_sdk.log
/data/media/####/tdata_Jga153
/data/media/####/tdata_bca864
/data/media/####/tdata_duV457
/data/media/####/tdata_mSr887
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTuiPushService 25541 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
mount
ps
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTuiPushService 25541 300 0

Loads the following dynamic libraries:

RSSupportIO
blasV8
getuiext3
jcore125
libjiagu1001461647
librsjni
objectbox

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES
AES-CBC-PKCS5Padding
AES-ECB-NoPadding
AES-ECB-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.

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