Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/08/2026, 16:16
Behavioral task
behavioral1
Sample
a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
Resource
win11ltsc2024-20260709-en
General
- Target a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe
- Size 45KB
- Sample260803-traf6aca68
- SHA256 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436
- MD5 6f59ed9da79db6ae98771e876fef1ffd
- SHA1 bb7756676957e821c3928750bc1386e391841a5f
- SHA512 de66f362c170c48bc84728c6034efbf4f180f63dad1a5a14bd8e94b541927b07ad5da7b47aec9c32d486215187df50f84d4b90cebc5234a1635c32254fb1a51a
- SSDEEP 768:4uBfJTMUyYUWUWBDimo2qVg0b3NLAteiZPImzjbUg53i8jpXNmXY1BDZbx:4uBfJTMpv2q3ZhiWm3b75SkMidbx
- TLSH T1B0233C003BE9812BF2BE4F78A9F25245867AF2636603D5491CC451DB5613FC6CA43AFE
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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sex18.me:80
-
sex18.me:22
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sex18.me:8080
-
sex18.me:8880
-
sex18.me:2052
-
sex18.me:2082
-
sex18.me:2086
-
sex18.me:2095
-
sex18.me:443
-
sex18.me:2053
-
sex18.me:2083
-
sex18.me:2087
-
sex18.me:2096
-
sex18.me:8443
-
www.sex18.me:80
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www.sex18.me:22
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www.sex18.me:8080
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www.sex18.me:8880
-
www.sex18.me:2052
-
www.sex18.me:2082
-
www.sex18.me:2086
-
www.sex18.me:2095
-
www.sex18.me:443
-
www.sex18.me:2053
-
www.sex18.me:2083
-
www.sex18.me:2087
-
www.sex18.me:2096
-
www.sex18.me:8443
-
sasser.sex18.me:80
-
sasser.sex18.me:22
-
sasser.sex18.me:8080
-
sasser.sex18.me:8880
-
sasser.sex18.me:2052
-
sasser.sex18.me:2082
-
sasser.sex18.me:2086
-
sasser.sex18.me:2095
-
sasser.sex18.me:443
-
sasser.sex18.me:2053
-
sasser.sex18.me:2083
-
sasser.sex18.me:2087
-
sasser.sex18.me:2096
-
sasser.sex18.me:8443
-
conficker.sex18.me:80
-
conficker.sex18.me:22
-
conficker.sex18.me:8080
-
conficker.sex18.me:8880
-
conficker.sex18.me:2052
-
conficker.sex18.me:2082
-
conficker.sex18.me:2086
-
conficker.sex18.me:2095
-
conficker.sex18.me:443
-
conficker.sex18.me:2053
-
conficker.sex18.me:2083
-
conficker.sex18.me:2087
-
conficker.sex18.me:2096
-
conficker.sex18.me:8443
-
pwUG2loerPiH
-
delay
0
-
install
true
-
install_file
zuxk.exe
-
install_folder
%AppData%
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral1/files/0x000b00000002440d-8.dat family_asyncrat - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe - Executes dropped EXE 2 IoCs
pid Process 3552 zuxk.exe 3236 zuxk.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4156 cmd.exe 4296 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language zuxk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language zuxk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 5068 timeout.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4176 schtasks.exe - Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe Token: SeDebugPrivilege 3552 zuxk.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1852 wrote to memory of 4156 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 85 PID 1852 wrote to memory of 4296 1852 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe 87 PID 4296 wrote to memory of 5068 4296 cmd.exe 89 PID 4156 wrote to memory of 4176 4156 cmd.exe 90 PID 4296 wrote to memory of 3236 4296 cmd.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe"C:\Users\Admin\AppData\Local\Temp\a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zuxk" /tr '"C:\Users\Admin\AppData\Roaming\zuxk.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4156 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "zuxk" /tr '"C:\Users\Admin\AppData\Roaming\zuxk.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4176
-
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3C77.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:5068
-
-
C:\Users\Admin\AppData\Roaming\zuxk.exe"C:\Users\Admin\AppData\Roaming\zuxk.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3236
-
-
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C:\Users\Admin\AppData\Roaming\zuxk.exe"C:\Users\Admin\AppData\Roaming\zuxk.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3552
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp3C77.tmp.bat
- Size 148B
- SHA256 9c21e80e83ff81aa841674e24bbdbd54269eea9e993b08ea66ef9d7357981d1a
- MD5 2343a4d4f69e40b174f6fcb22da7a8a3
- SHA1 8bfab3d72a94227d9874a47a8ee033688a76b044
- SHA512 21c7f2bd348bf0d23aa3724319e89bff6b0266dab7cc9a5cfb2fa8254438f6239a8575114e05757b0545b52bbcda8314b049afb95b6622104306100e0485fac0
- TLSH T155C02B4751CBEE4E2D05245303FBD98C917A6C193F80FB00C344400E3280848F5DA3C1
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\zuxk.exe
- Size 45KB
- SHA256 a1106f22235d6de7f8f97a6272faa26c06b69693628e75547a5397c2666f6436
- MD5 6f59ed9da79db6ae98771e876fef1ffd
- SHA1 bb7756676957e821c3928750bc1386e391841a5f
- SHA512 de66f362c170c48bc84728c6034efbf4f180f63dad1a5a14bd8e94b541927b07ad5da7b47aec9c32d486215187df50f84d4b90cebc5234a1635c32254fb1a51a
- SSDEEP 768:4uBfJTMUyYUWUWBDimo2qVg0b3NLAteiZPImzjbUg53i8jpXNmXY1BDZbx:4uBfJTMpv2q3ZhiWm3b75SkMidbx
- TLSH T1B0233C003BE9812BF2BE4F78A9F25245867AF2636603D5491CC451DB5613FC6CA43AFE
- MD5 SHA1 SHA512 SSDEEP TLSH