Android.Backdoor.2102

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.637.origin
Android.DownLoader.596.origin
Android.Triada.377.origin

Downloads the following detected threats from the Internet:

Android.Backdoor.636.origin
Android.Triada.1714

Prompts to install third-party apps.

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) 36.7.1####.221:8085
TCP(HTTP/1.1) gpu####.m####.com:8080
TCP(HTTP/1.1) mo####.ultrapr####.com:80
TCP(HTTP/1.1) pac####.ultrapr####.com:80
TCP(HTTP/1.1) sm####.m####.com:80
TCP(HTTP/1.1) adman####.android####.info:80
TCP(HTTP/1.1) r####.hiwec####.com:8085
TCP(HTTP/1.1) acc####.thefunn####.com:8100
TCP(HTTP/1.1) acc####.thefunn####.com:80
TCP(HTTP/1.1) as####.hiwec####.com:7756
TCP(HTTP/1.1) w####.m####.in:80
TCP(HTTP/1.1) g####.m####.com:80
TCP(HTTP/1.1) d####.appsco####.com:80
TCP(HTTP/1.1) b####.android####.info:80
TCP(HTTP/1.1) r####.hiwec####.com:80
TCP(TLS/1.0) 2####.58.212.174:443
TCP(TLS/1.0) sett####.crashly####.com:443
TCP 98.1####.23.24:6038
TCP 98.1####.23.24:6024

DNS requests:

109.211.58.####.arpa
174.212.58.####.arpa
74.17.217.####.arpa
95.79.194.####.arpa
99.20.217.####.arpa
acc####.thefunn####.com
acco####.go####.com
adman####.android####.info
as####.hiwec####.com
b####.android####.info
d####.appsco####.com
g####.m####.com
gpu####.m####.com
hijo####.thefunn####.com
loading####.mids####.info
mo####.ultrapr####.com
p####.google####.com
p####.hiwec####.com
pac####.ultrapr####.com
r####.android####.info
r####.hiwec####.com
sett####.crashly####.com
sm####.m####.com
ssl.gst####.com
w####.m####.in
www.google####.com

HTTP GET requests:

acc####.thefunn####.com/soft/59b1ed77a2edd.zip
acc####.thefunn####.com/soft/59f9b84c64333.zip
acc####.thefunn####.com/soft/5a178918b9258.zip
acc####.thefunn####.com/soft/5a1d192c526b3.zip
acc####.thefunn####.com/soft/5a3b83fe10153.zip
acc####.thefunn####.com/soft/5a7286ef127b0.zip
acc####.thefunn####.com/soft/5a797e2b3140b.zip
acc####.thefunn####.com/soft/5a92682bdfdbe.zip
acc####.thefunn####.com/soft/5a964deb282bd.zip
acc####.thefunn####.com/soft/5aec20da7ff17.zip
acc####.thefunn####.com/soft/5bea665062a17.zip
adman####.android####.info/OffersApi/lanjie?publisher_id=####&slot=####&...
b####.android####.info/api/getSdk
b####.android####.info/api/getSelfUpdate?is_test=####&version=####&
b####.android####.info/api/getThirdPartPushApk
b####.android####.info/api/timeInterval
b####.android####.info/upload/Selfupdate/20171213084930.7z
pac####.ultrapr####.com/Uploads/ThirdPartyPushApk/g36_base.apk
pac####.ultrapr####.com/Uploads/sdk/171212_fixservice-debug_10000_2_2.0_...
sm####.m####.com/Api/Partners/initOpen?tag=####&version=####
w####.m####.in/api/initOpen?tag=####&version=####&game_id=####

HTTP POST requests:

acc####.thefunn####.com:8100/Update/dystat
acc####.thefunn####.com:8100/Update/packageLogByType
acc####.thefunn####.com:8100/Update/packageManageUpdate
acc####.thefunn####.com:8100/Update/packageUpdateResult
as####.hiwec####.com:7756/goclient/gettask
b####.android####.info/api/dystat
b####.android####.info/api/tempLogInfo
d####.appsco####.com/androidplus/?c=####&a=####
g####.m####.com/Grab/ip
g####.m####.com/Register/heart
gpu####.m####.com:8080/go/api
mo####.ultrapr####.com/index.php?c=####&m=####
r####.hiwec####.com/golang/get
r####.hiwec####.com:8085/fiddler/get

File system changes:

Creates the following files:

/data/data/####/11454160
/data/data/####/18345434
/data/data/####/1b8913b707d2dbeb405ab51baa9e0c13
/data/data/####/59b1ed77a2edd.zip
/data/data/####/59f9b84c64333.zip
/data/data/####/5a178918b9258.zip
/data/data/####/5a1d192c526b3.zip
/data/data/####/5a3b83fe10153.zip
/data/data/####/5a7286ef127b0.zip
/data/data/####/5a797e2b3140b.zip
/data/data/####/5a92682bdfdbe.zip
/data/data/####/5a964deb282bd.zip
/data/data/####/5aec20da7ff17.zip
/data/data/####/5bea665062a17.zip
/data/data/####/Service.xml
/data/data/####/TwitterAdvertisingInfoPreferences.xml
/data/data/####/[[afollestad_heme-engine_dark_theme]].xml
/data/data/####/[[afollestad_heme-engine_dark_theme_notoolbar]].xml
/data/data/####/[[afollestad_heme-engine_light_theme]].xml
/data/data/####/[[afollestad_heme-engine_light_theme_notoolbar]].xml
/data/data/####/b7099c6058ad0283bc3e323f6f35a482
/data/data/####/bg_sp.xml
/data/data/####/classes.dex
/data/data/####/com.crashlytics.prefs.xml
/data/data/####/com.crashlytics.sdk.android;answers;settings.xml
/data/data/####/com.lmt.register_preferences.xml
/data/data/####/com.solo.adsdk.preference.pkg.xml
/data/data/####/com.solo.adsdk.preference.user.xml
/data/data/####/com.solo.adsdk.preference.user.xml.bak
/data/data/####/config.xml
/data/data/####/error
/data/data/####/get_ip_file.xml
/data/data/####/getprop_c
/data/data/####/interval_config.xml
/data/data/####/libfilesystem_monitor.so
/data/data/####/libkrsdk.so
/data/data/####/libnativeUtil.so
/data/data/####/libso1.so
/data/data/####/libun7z.so
/data/data/####/log.xml
/data/data/####/module_cache.xml
/data/data/####/musicdb.db-journal
/data/data/####/naman14.timber.dev_preferences.xml
/data/data/####/naman14.timber.dev_preferences.xml.bak
/data/data/####/naman14.timber.dev_preferences.xml.bak (deleted)
/data/data/####/public_sp.xml
/data/data/####/receive_time_file.xml
/data/data/####/runtime
/data/data/####/sa_193cc559-1954-4551-8fb1-afd4296494f7_1548299787202.tap
/data/data/####/sbys.xml
/data/data/####/sbysc.xml
/data/data/####/sbysc.xml.bak
/data/data/####/session_analytics.tap
/data/data/####/session_analytics.tap.tmp
/data/data/####/setprop_c
/data/data/####/share_params.xml
/data/data/####/source.zip
/data/data/####/toor.xml
/data/data/####/webview.db-journal
/data/data/####/zlt
/data/data/####/zlt.7z
/data/data/####/zlt.7z_tmp
/data/data/####/zltcheck
/data/data/####/zltdaemon
/data/local/####/zlt_conf
/data/media/####/.androidID
/data/media/####/.nomedia
/data/media/####/.recordinterval
/data/media/####/bart.apk
/data/media/####/bart.apk_tmp
/data/media/####/com.lmt.register.apk
/data/media/####/com.lmt.register.apk_tmp
/data/media/####/juuid.bk
/data/media/####/pureSdk
/system/pureSdk

Miscellaneous:

Executes the following shell scripts:

bart 9a952b2dd32a3ca2072d3794c3129709
cat /sys/class/net/wlan0/address
getprop
getprop ro.product.cpu.abi
getprop ro.product.cpu.abi2
grep zlt
ping -c 3 -w 10 accounts.google.com
ping -c 3 -w 10 android.clients.google.com
ping -c 3 -w 10 play.googleapis.com
ping -c 3 -w 10 ssl.gstatic.com
ping -c 3 -w 10 www.googleapis.com
ping -c 4 174.139.72.164
ps
sh
sh /system/bin/getprop
su

Loads the following dynamic libraries:

RSSupportIO
blasV8
libkrsdk
libnativeUtil
librsjni
libso1
libun7z
so1

Uses the following algorithms to encrypt data:

AES-ECB-PKCS5Padding
DES

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding
DES

Uses elevated priveleges.

Gets information about location.

Gets information about network.

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

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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