Android.Backdoor.2135

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.401.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.b####.qq.com:8012
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) reso####.msg.gl####.####.net:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) a####.h####.com.####.com:443
TCP(TLS/1.0) io.h####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) api.cr####.h####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) regi####.xm####.gl####.####.com:443
TCP(TLS/1.0) www.tvo####.com.####.com:443
TCP app.c####.gl####.####.net:5222

DNS requests:

a####.b####.qq.com
a####.h####.com
aexcep####.b####.qq.com
and####.b####.qq.com
api.cr####.h####.com
app.c####.gl####.####.net
io.h####.com
plb####.u####.com
regi####.xm####.gl####.####.com
reso####.msg.gl####.####.net
ssl.gst####.com
u####.u####.com
www.go####.com
www.gst####.com
www.tvo####.com

HTTP GET requests:

reso####.msg.gl####.####.net/gslb/?ver=####&type=####&conpt=####&uuid=##...

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####

File system changes:

Creates the following files:

/data/data/####/-gDyttum2nLBH0bJUvFsWIDVT0Y.1291540224.tmp
/data/data/####/.imprint
/data/data/####/.nomedia
/data/data/####/1004
/data/data/####/2019_spring_festival.jpg
/data/data/####/2019_spring_festival.jpg.temp
/data/data/####/20M5T24PwSdtwLz2OAvi0JGViPc.-1914844442.tmp
/data/data/####/9Yv1_FIah9F0iXVlUxAwoiKAXks.1245736259.tmp
/data/data/####/Ayacs-iSKEHJyoJkC1aQ-rqAmyM.86039522.tmp
/data/data/####/IAPm1eP_si2MRZS74xiEnyOi4SI.1291540224.tmp
/data/data/####/Ioyhuh9uihnc-K8LYuTyyhtu2HM.1245736259.tmp
/data/data/####/MultiDex.lock
/data/data/####/P3em6RCm4O5aeVwEHKRlR8KyRdI.-1914844442.tmp
/data/data/####/PY29CaN-nL8QrQXQuua9m3nEv1M.86039522.tmp
/data/data/####/S4P8dCxHurlaPwBgDfrNGDdAU1Y.1713432154.tmp
/data/data/####/SOkZ-g5FN4fbSncYWyBe-m_iUyQ.1250471265.tmp
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/UgbPibmvUtVYZ7zIm3kVMDG9mBM.-1914844442.tmp
/data/data/####/XMPushServiceConfig.xml
/data/data/####/_h7vCH4YY-cjCbycLHq_R1CoPAk.1881110654.tmp
/data/data/####/a==7.5.4&&2.25.01_1550744891809_envelope.log
/data/data/####/bn4DpEYEvPAOjEdtTwQVgPl-WR0.-44256696.tmp
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/collection_subscribe_icon.png
/data/data/####/collection_subscribed_icon.png
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDa...leted)
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDa...ml.bak
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.skyplatanus.crucio;pushservice
/data/data/####/com.skyplatanus.crucio_preferences.xml
/data/data/####/cookieJar.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0ODg4MjI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTAwMjMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTE2NTcy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTEwMzYz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTI3NzUx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTIxNzcw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTM4OTYz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTMyMjIx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzQ0OTQzNzE5;
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/fisher_vip_gift.png
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/i==1.2.0&&2.25.01_1550744888606_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744900254_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744910385_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744916564_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744921806_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744927790_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744938986_envelope.log
/data/data/####/i==1.2.0&&2.25.01_1550744943731_envelope.log
/data/data/####/info.xml
/data/data/####/init_combo.js
/data/data/####/j4LSEGr-dZ-LlCp90mTf8Mo1ViY.8441474.tmp
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.1.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mipush.xml
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_oc.xml
/data/data/####/mipush_region
/data/data/####/mipush_region.lock
/data/data/####/mix.dex
/data/data/####/mrlUJQ-lUjRP_fg_YLrkt8Y6BVI.86039522.tmp
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pref_registered_pkg_names.xml
/data/data/####/qHGA8EQWjlFjTEHCZdI7B2gk_3s.1291540224.tmp
/data/data/####/security_info
/data/data/####/sensorsdata-journal
/data/data/####/sensorsdata.xml
/data/data/####/sp_client_report_status.xml
/data/data/####/sync.xml
/data/data/####/timeup.html
/data/data/####/timeup_combo.css
/data/data/####/timeup_combo.js
/data/data/####/timeup_emotion_sad.png
/data/data/####/timeup_emotion_share.png
/data/data/####/timeup_emotion_upcoming.png
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/version
/data/data/####/vyIP_tuFKTuOeu8Cju75wipw3qE.-44256696.tmp
/data/data/####/wij1NQQSEVAVAXwnojW25EIjFMM.1925995239.tmp
/data/data/####/www@315.zip
/data/data/####/zkgTL6bi0c0i3O4KSKk5O-9LqrM.1291540224.tmp
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/log.lock
/data/media/####/log1.txt
/data/media/####/sysid.dat

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/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-2.9.1.2.so
chmod 700 <Package Folder>/tx_shell/libufix.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
getprop ro.yunos.version
logcat -d -v threadtime
ls /
ls /sys/class/thermal
sh

Loads the following dynamic libraries:

Bugly
cpt
libimagepipeline
libnfix
libshella-2.9.1.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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

Uses special library to hide executable bytecode.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Technologies

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