Android.BackDoor.3026

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.564.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) lbs.net####.im:80
TCP(TLS/1.0) ser####.j####.cn:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) homema####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) and####.google####.com:443
TCP(TLS/1.0) al####.u####.com:443
TCP(TLS/1.0) qy-swa####.qi####.com:443
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.0) 1####.217.168.202:443
TCP(TLS/1.2) 1####.251.39.106:443
TCP(TLS/1.2) and####.cli####.go####.com:443
TCP(TLS/1.2) 2####.58.208.99:443
TCP(TLS/1.2) 1####.217.168.202:443
TCP sdk.o####.t####.####.com:5224
TCP cm-10####.g####.com:5225

DNS requests:

a####.91.com
a####.shar####.cn
and####.cli####.go####.com
and####.google####.com
android####.go####.com
api.map.b####.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-10####.g####.com
homema####.oss-cn-####.aliy####.com
lbs.net####.im
loc.map.b####.com
m####.go####.com
qy-swa####.qi####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
ser####.j####.cn
u####.u####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_EAx630
cdn-sdk####.g####.com.####.com/tdata_fPG280
cdn-sdk####.g####.com.####.com/tdata_kPg706
d####.c####.l####.####.com/config/hzv9.conf
lbs.net####.im/lbs/conf.jsp?tp=####&sv=####&pv=####&k=####
sdk.o####.p####.####.com/api/addr.htm

HTTP POST requests:

api.map.b####.com:443/sdkcs/verify
c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/sdk.php
sdk.o####.p####.####.com/api.php?format=####&t=####
ser####.j####.cn:443/HomeAssistService/appDownloadLogAction.do?action=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.jgck
/data/data/####/AppConfig.xml
/data/data/####/ImageListData.xml
/data/data/####/Myapp_data.xml
/data/data/####/NIMSDK_Config_39fbdcc369c4076abc6c89ebb5a6c571.xml
/data/data/####/NIMSDK_Config_39fbdcc369c4076abc6c89ebb5a6c571.xml.bak
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/appConfig.xml
/data/data/####/appSetting.xml
/data/data/####/authStatus_com.homeAssist.work.xml
/data/data/####/authStatus_com.homeAssist.work;core.xml
/data/data/####/authStatus_com.homeAssist.work;cosine.xml
/data/data/####/authStatus_com.homeAssist.work;pushservice.xml
/data/data/####/authStatus_com.homeAssist.work;remote.xml
/data/data/####/bdp_pref.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/classes4.dex
/data/data/####/com.qiyukf.analytics.xml
/data/data/####/com.qiyukf.analytics.xml.bak
/data/data/####/dW1weF9pbnRlcm5hbF8xNjQwNzkxNDc2MDk0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNjQwNzkxNTM3Mzkw;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/i==1.2.0&&1.97.12_1640791537380_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/libcuid.so
/data/data/####/libjiagu.so
/data/data/####/mac.xml
/data/data/####/metrics_guid
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/qiyu_save_a8861e67bda4d995cb991fd9ce0e2dda.xml
/data/data/####/run.pid
/data/data/####/share_date.xml
/data/data/####/share_date.xml.bak
/data/data/####/share_sdk_0.xml
/data/data/####/sharesdk.db-journal
/data/data/####/tdata_EAx630
/data/data/####/tdata_EAx630.dex
/data/data/####/tdata_EAx630.dex.flock (deleted)
/data/data/####/tdata_EAx630.jar
/data/data/####/tdata_fPG280
/data/data/####/tdata_fPG280.dex
/data/data/####/tdata_fPG280.dex.flock (deleted)
/data/data/####/tdata_fPG280.jar
/data/data/####/tdata_kPg706
/data/data/####/tdata_kPg706.dex
/data/data/####/tdata_kPg706.dex.flock (deleted)
/data/data/####/tdata_kPg706.jar
/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/####/unicorn#cheese#
/data/data/####/userInfo.xml
/data/data/####/userInfo.xml.bak
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid2
/data/media/####/.dk
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/20211229.log
/data/media/####/error.txt
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/nim_sdk.log
/data/media/####/tmp_c_20211229
/data/media/####/tmp_u_20211229
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat
/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
chmod 755 <Package Folder>/.jiagu/libjiagu.so
ls /
ls /sys/class/thermal

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
DESede-CBC-PKCS7Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding

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.).

Gets information about installed apps.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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