Android.Gexin.1044

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Gexin.1

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) a####.b####.qq.com:8012
TCP(HTTP/1.1) t####.talking####.net:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) n####.huaina####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) a####.u####.com.####.com:80
TCP(HTTP/1.1) a####.eas####.com:80
TCP(HTTP/1.1) rsv.eas####.com.####.com:80
TCP(HTTP/1.1) si####.huaina####.com:80
TCP(HTTP/1.1) j####.huaina####.com:80
UDP(NTP) 1.cn.p####.####.org:123
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.0) b.s####.pa####.com:443
TCP(TLS/1.0) s####.pa####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) jic.talking####.com:443
TCP(TLS/1.0) and####.google####.com:443
TCP(TLS/1.0) s####.map.b####.com:443
TCP(TLS/1.0) ppo.edg####.net:443
TCP(TLS/1.0) p####.google####.com:443
TCP(TLS/1.0) 1####.217.20.74:443
TCP(TLS/1.2) 1####.217.20.74:443
TCP(TLS/1.2) 1####.217.17.142:443
TCP(TLS/1.2) 1####.250.179.163:443
UDP 1####.217.20.74:443

DNS requests:

1.cn.p####.####.org
a####.b####.qq.com
a####.eas####.com
a####.u####.com
aexcep####.b####.qq.com
and####.b####.qq.com
and####.cli####.go####.com
and####.google####.com
b.s####.pa####.com
dub.s####.pa####.com
i####.cn
id1.cn.8.####.8
j####.huaina####.com
jic.talking####.com
m.huaina####.com
md####.google####.com
n####.huaina####.com
p####.google####.com
rs.eas####.com
s####.magicwi####.cn
s####.map.b####.com
s####.pa####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
si####.huaina####.com
t####.talking####.net
td.m####.cn
www.paypalo####.com

HTTP GET requests:

j####.huaina####.com/config/load?version=####&project_name=####&front_ty...
j####.huaina####.com/discovery?login_user_id=####&session_id=####
n####.huaina####.com/promotion_task/info?device_id=####&activate=####&ph...
n####.huaina####.com/report/get_bad_words?phone_sn=####&version=####&app...
n####.huaina####.com/serverInfo/info_server?phone_sn=####&version=####&a...
rsv.eas####.com.####.com/easemob/server.json?sdk_version=####&app_key=##...
si####.huaina####.com/chosen/tab_info?first_startup_index=####&phone_sn=...
si####.huaina####.com/home_page/tab_info?first_startup_index=####&phone_...

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
a####.eas####.com/puahome/bree/devices
a####.u####.com.####.com/app_logs
and####.b####.qq.com/rqd/async
n####.huaina####.com/emotion/homepage?app_channel=####&pcid=####&phone_s...
t####.talking####.net/g/d?crc=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/Alvin2.xml
/data/data/####/AndroidBasePrefs.xml
/data/data/####/CONFIG_DATA
/data/data/####/CONFIG_TIME
/data/data/####/ContextData.xml
/data/data/####/Cookies-journal
/data/data/####/RiskManagerAG.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TD_app_pefercen_profile.xml.bak
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime.xml.bak
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime.xml.bak
/data/data/####/TDtcagent.db
/data/data/####/TDtcagent.db-journal
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/authStatus_com.mei.melkor.xml
/data/data/####/authStatus_com.mei.melkor;pushservice.xml
/data/data/####/authStatus_com.mei.melkor;remote.xml
/data/data/####/bugly_db_-journal
/data/data/####/bugly_trace_1625330258135.txt
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/com.mei.melkor_preferences.xml
/data/data/####/com.melkor.spcache.xml
/data/data/####/com.melkor.spcache.xml.bak
/data/data/####/config.json
/data/data/####/device_id.xml.xml
/data/data/####/exchangeIdentity.json
/data/data/####/fd46d48ee79bd34c_0
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c.pid
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/local_crash_lock (deleted)
/data/data/####/mac.xml
/data/data/####/metrics_guid
/data/data/####/mobclick_agent_cached_com.mei.melkor74
/data/data/####/mpush_app.db-journal
/data/data/####/mpush_gateway_preferences_file
/data/data/####/mpush_version_preferences_file
/data/data/####/mwsdk_analytics.db-journal
/data/data/####/persistent_data.xml
/data/data/####/persistent_data.xml.bak
/data/data/####/preferences.xml
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/server.json
/data/data/####/td.lock
/data/data/####/tdid.xml
/data/data/####/the-real-index
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak
/data/data/####/umeng_it.cache
/data/media/####/.cuid
/data/media/####/.tcookieid
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/easemob.log
/data/media/####/fb.bin
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/monitor.db
/data/media/####/monitor.db-journal
/data/media/####/preferences

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c type su
chmod 755 /data/user/0/<Package>/files/libjiagu.so
getprop
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
logcat -d -v threadtime

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
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.

Gets information about accounts associated with the device (Google, Facebook, etc.).

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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