Android.BackDoor.3118

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.657.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) 1####.55.22.53:9099
TCP(HTTP/1.1) norma-e####.m####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(HTTP/1.1) adash####.man.aliy####.com:80
TCP(HTTP/1.1) 1####.55.28.235:80
TCP(HTTP/1.1) and####.b####.qq.com:80
UDP(NTP) 2.and####.p####.####.org:123
TCP(TLS/1.0) 2####.85.233.94:443
TCP(TLS/1.0) plb####.u####.com:443
TCP(TLS/1.0) outexp-####.cdn.qq.####.com:443
TCP(TLS/1.0) p####.google####.com:443
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) u####.u####.com:443
TCP openj####.m.ta####.com:443
UDP p####.google####.com:443
TCP openj####.m.ta####.com:80
TCP zb-cent####.m.ta####.com:443

DNS requests:

2.and####.p####.####.org
a####.man.aliy####.com
ad####.m.ta####.com
ada####.m.ta####.com
amdc####.m.ta####.com
and####.b####.qq.com
and####.google####.com
m####.go####.com
norma-e####.m####.com
outexp-####.cdn.qq.com
p####.google####.com
plb####.u####.com
u####.u####.com
umen####.m.ta####.com
umengj####.m.ta####.com

HTTP GET requests:

norma-e####.m####.com/android/exchange/getpublickey.do
outexp-####.cdn.qq.####.com:443/outbeta/hotpatch/65e59b61a0/2021/01/7a61...

HTTP POST requests:

ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
adash####.man.aliy####.com/man/api?ak=####&s=####
and####.b####.qq.com/rqd/async?aid=####
norma-e####.m####.com/push/android/external/add.do
plb####.u####.com:443/umpx_internal
plb####.u####.com:443/umpx_push_launch
plb####.u####.com:443/umpx_push_register
u####.u####.com:443/unify_logs

File system changes:

Creates the following files:

/data/data/####/.cl
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1002
/data/data/####/1004
/data/data/####/39285EFA.dex
/data/data/####/39285EFA.dex.flock (deleted)
/data/data/####/7a6171fb-e1cc-4b6b-b9d1-b60500a90210_b2d8c56443...leted)
/data/data/####/ACCS_BINDumeng;59aa5e16e88bad2aff001a84.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/ACCS_SDK_CHANNEL.xml.bak
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/BUGLY_COMMON_VALUES.xml.bak
/data/data/####/ContextData.xml
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/UTCommon.xml
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/ap.Lock
/data/data/####/bugly_db_-journal
/data/data/####/channel_umeng_common_config.xml
/data/data/####/classes.dex
/data/data/####/classes.dex.jar
/data/data/####/classes.dex;classes2.dex
/data/data/####/classes.dex;classes3.dex
/data/data/####/classes.dex;classes4.dex
/data/data/####/classes2.dex.jar
/data/data/####/cn.ecook.xml
/data/data/####/cn.ecook.xml.bak
/data/data/####/cn.ecookxuezuofan.BETA_VALUES.xml
/data/data/####/cn.ecookxuezuofan.BETA_VALUES.xml.bak
/data/data/####/cn.ecookxuezuofan.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/crashrecord.xml
/data/data/####/crashrecord.xml.bak
/data/data/####/dW1weF9pbnRlcm5hbF8xNjY2NDQ4NTc3Mzk4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNjY2NDQ4NTgxODE0;
/data/data/####/dW1weF9wdXNoX2xhdW5jaF8xNjY2NDQ4NTk0MzU1;
/data/data/####/dW1weF9wdXNoX3JlZ2lzdGVyXzE2NjY0NDg1ODQzNTQ=;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&1.30.39_1666448577390_envelope.log
/data/data/####/info.lock
/data/data/####/info.xml
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/local_crash_lock (deleted)
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/mz_push_preference.xml
/data/data/####/native_record_lock
/data/data/####/native_record_lock (deleted)
/data/data/####/patch-b2d8c564.apk
/data/data/####/patch.apk
/data/data/####/patch.info
/data/data/####/patch.retry
/data/data/####/patch_umeng_common_config.xml
/data/data/####/proc_auxv
/data/data/####/security_info
/data/data/####/temp.apk
/data/data/####/test.dex.jar
/data/data/####/tinker_classN.apk
/data/data/####/tinker_classN.dex
/data/data/####/tinker_classN.dex.flock (deleted)
/data/data/####/tmpPatch.apk
/data/data/####/um_pri.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/####/umeng_message_state.xml
/data/data/####/update.xml
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/media/####/2022-10-22.log.txt
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/config.txt
/data/media/####/deviceToken
/data/misc/####/primary.prof

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
getprop
ls /
ls /sys/class/thermal

Loads the following dynamic libraries:

lib39285EFA
libBugly
libjiagu
libtnet-3.1.14

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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.).

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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