Adware.Gexin.6152

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/1.0) tcms-a####.wan####.ta####.com:80
TCP(HTTP/1.0) tcms-a####.wan####.ta####.com:443
TCP(HTTP/1.1) www.bd####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) na61-####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) na61-####.wagbr####.non####.####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) a####.m.ta####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) mtjso####.b####.com:443
TCP(TLS/1.0) dxp.b####.com:443
TCP(TLS/1.0) h####.b####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224
TCP i####.wan####.ta####.com:443

DNS requests:

7j####.c####.z0.####.com
a####.m.ta####.com
a####.u####.com
c####.g####.ig####.com
c-h####.g####.com
dxp.b####.com
h####.b####.com
hotp####.wan####.ta####.com
i####.wan####.ta####.com
loc.map.b####.com
log.u####.com
mtjso####.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
ssl.gst####.com
tcms-a####.wan####.ta####.com
wb.110.ta####.com
www.bd####.com
www.go####.com
www.gst####.com
y####.al####.com

HTTP GET requests:

na61-####.wagbr####.non####.####.com/m/um.htm?c=####
na61-####.wagbr####.non####.####.com/m/um.htm?c={"ser####
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_SLj922
tcms-a####.wan####.ta####.com:443/imlogingw/tcp60login?devid=####&ver=####
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

a####.m.ta####.com/rest/gc?dd=####&nsgs=####&ak=####&av=####&c=####&v=##...
a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/offline_loc
loc.map.b####.com/sdk.php
na61-####.wagbr####.ali####.####.com/api/update.do
na61-####.wagbr####.non####.####.com/saveWb.json
sdk.o####.p####.####.com/api.php?format=####&t=####
www.bd####.com/appapi.php

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1544352610766.log
/data/data/####/1d77ea041509fe06.lock
/data/data/####/49814c4f5ac2f2f9.lock
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/SGMANAGER_DATA.xml
/data/data/####/UTCommon.xml
/data/data/####/UTMCConf-272457633.xml
/data/data/####/UTMCLog-272457633.xml
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1544352612455
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.qihe.bdwork_2281_10_50AM
/data/data/####/com.qihe.bdwork_TcmsService_2333_10_50AM
/data/data/####/com.qihe.bdwork_preferences.xml
/data/data/####/com.qihe.bdwork_pushservice_2404_10_50AM
/data/data/####/com.qihe.bdwork_remote_2447_10_50AM
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu59245313.so
/data/data/####/libsecuritysdkx-3.1.27.so.tmp
/data/data/####/mtj_auto.config
/data/data/####/mtj_autoTracker.js
/data/data/####/multidex.version.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/####/okgo_cookie.xml
/data/data/####/onesdk_device.xml
/data/data/####/preference_bd_work.xml
/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/####/sp.lock
/data/data/####/tcms_istied.xml
/data/data/####/tcms_setting_sp.xml
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_SLj922
/data/data/####/tdata_SLj922.jar
/data/data/####/trace_circle.data
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/umeng_socialize.xml (deleted)
/data/data/####/umeng_socialize.xml.bak
/data/data/####/umeng_socialize.xml.bak (deleted)
/data/data/####/xpush_status.xml
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.timestamp
/data/media/####/2_20181209_r
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.qihe.bdwork.bin
/data/media/####/com.qihe.bdwork.db
/data/media/####/conlts.dat
/data/media/####/dd7893586a493dc3
/data/media/####/hid.dat
/data/media/####/ller.dat
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_BAI450
/data/media/####/tdata_SLj922
/data/media/####/test.0
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/com.getui.userPushService 24483 300 0
cat /proc/cpuinfo | grep Serial
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.build.display.id
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.miui.ui.version.name
getprop ro.product.cpu.abi
getprop ro.smartisan.version
getprop ro.vivo.os.version
ls -l /system/xbin/su
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.getui.userPushService 24483 300 0

Loads the following dynamic libraries:

crash_analysis
getuiext2
inet.2.0
libjiagu59245313
locSDK6a
securitysdk-3.1

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-NoPadding
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.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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