Adware.Gexin.285

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) m.d####.mob.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) upl.b####.com:80
TCP(TLS/1.0) x####.tc.qq.com:443
TCP(TLS/1.0) h####.b####.com:443

DNS requests:

a####.exc.mob.com
and####.b####.qq.com
h####.b####.com
m.d####.mob.com
s.b####.g####.com
upl.b####.com

HTTP GET requests:

m.d####.mob.com/v3/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
upl.b####.com/auth.php

Modified file system:

Creates the following files:

/data/data/####/.lock
/data/data/####/1002
/data/data/####/1004
/data/data/####/5766165a-8899-4b7b-8686-d0100c3fbcd8.zip
/data/data/####/AndroidTTS.xml
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/ChangPay.xml
/data/data/####/PAY_TAG.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_1531915796090
/data/data/####/__send_data_1531915813731
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/changed_classes.dex.dex
/data/data/####/changed_classes.dex.jar
/data/data/####/com.zpkj.pay.BETA_VALUES.xml
/data/data/####/com.zpkj.pay.BETA_VALUES.xml.bak
/data/data/####/crashrecord.xml
/data/data/####/info.lock
/data/data/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-2.10.7.1.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/mob_commons_1.xml
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/mob_sdk_exception_1.xml.bak
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/native_record_lock (deleted)
/data/data/####/patch-cd579f74.apk
/data/data/####/patch.apk
/data/data/####/patch.info
/data/data/####/patch.retry
/data/data/####/resources.apk
/data/data/####/resources.arsc
/data/data/####/security_info
/data/data/####/temp.apk
/data/data/####/test.dex.dex
/data/data/####/test.dex.jar
/data/data/####/tinker_own_config_com.zpkj.pay.xml
/data/data/####/tmpPatch.apk
/data/data/####/ttsdata
/data/data/####/ttsdata-journal
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid2
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.rcTag
/data/media/####/.rc_lock
/data/media/####/.timestamp
/data/media/####/bd_etts_speech_female.dat
/data/media/####/bd_etts_speech_male.dat
/data/media/####/bd_etts_text.dat
/data/media/####/temp_license

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop
/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-2.10.7.1.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.display.id
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.smartisan.version
getprop ro.vivo.os.build.display.id
getprop ro.vivo.os.version
getprop ro.yunos.version
logcat -d -v threadtime
sh

Loads the following dynamic libraries:

BDSpeechDecoder_V1
Bugly
bd_etts
bdtts
gnustl_shared
libnfix
libshella-2.10.7.1
libufix
neh
nfix
ufix
weexv8

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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

Uses special library to hide executable bytecode.

Gains access to network information.

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

Gains access to information about installed applications.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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