Adware.Gexin.438

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) pg.x####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) rs.eas####.com:80
TCP(HTTP/1.1) 60.2####.122.52:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
UDP(NTP) 1.cn.p####.####.org:123
TCP(TLS/1.0) x####.com:443
TCP(TLS/1.0) jic.talking####.com:443
TCP(TLS/1.0) sen####.ba####.com:4106
TCP(TLS/1.0) mc.hz####.com:443
TCP(TLS/1.0) redi####.network####.com:443
TCP(TLS/1.0) dc1.network####.com:443
TCP(TLS/1.0) qh.yk####.com:443
TCP(TLS/1.0) app.x####.com:443

DNS requests:

1.cn.p####.####.org
a####.u####.com
and####.b####.qq.com
app.x####.com
dc1.network####.com
i####.cn
jic.talking####.com
mc.hz####.com
mt####.go####.com
pg.x####.com
qh.yk####.com
redi####.network####.com
rs.eas####.com
sdk.o####.p####.####.com
sen####.ba####.com
x####.com

HTTP GET requests:

rs.eas####.com/easemob/server.json?sdk_version=####&app_key=####&file_ve...

HTTP POST requests:

a####.u####.com/app_logs
and####.b####.qq.com/rqd/async
pg.x####.com/api/q/a/3c1e0985093cceca4f16f5f8da551f103
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/SP_AROUTER_CACHE.xml
/data/data/####/TDCloudSettingsConfig99C55F973A9B4DC4968905F69D3822FF.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDtcagent.db
/data/data/####/TDtcagent.db-journal
/data/data/####/backup_globalSetting.json
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.networkbench.agent.impl.v2_com.yskj.hzfinance.xml
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.yskj.hzfinance-journal
/data/data/####/com.yskj.hzfinance.xml
/data/data/####/com.yskj.hzfinance_preferences.xml
/data/data/####/config.json
/data/data/####/config_version.config
/data/data/####/default_custom.json
/data/data/####/default_custom_categories_new.json
/data/data/####/default_custom_production.json
/data/data/####/default_instcode.json
/data/data/####/default_instcode_production.json
/data/data/####/default_trade_config.json
/data/data/####/device_id.xml.xml
/data/data/####/dx168-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/getui_sp.xml
/data/data/####/globalSetting.json
/data/data/####/index_config.json
/data/data/####/index_permission.json
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/libshella-2.8.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mpush_app.db-journal
/data/data/####/mpush_gateway_preferences_file
/data/data/####/mpush_version_preferences_file
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pre_load_config.xml
/data/data/####/security_info
/data/data/####/sensorsdata.xml
/data/data/####/server.json
/data/data/####/talkingdata_file_prefence.xml
/data/data/####/td.lock
/data/data/####/tdid.xml
/data/data/####/tdlock.txt
/data/data/####/trade_server.json
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_feedback_user_info.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/media/####/.tcookieid
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.8.so
chmod 700 <Package Folder>/tx_shell/libufix.so
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
getprop ro.yunos.version
logcat -d -v threadtime

Loads the following dynamic libraries:

Bugly
getuiext2
hyphenate
libnfix
libshella-2.8
libufix
nfix
tongdun
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Displays its own windows over windows of other applications.

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