Analysis
- max time kernel
149s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/08/2026, 21:31
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe
Resource
win10v2004-20260513-en
10 signatures
150 seconds
General
- Target 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe
- Size 833KB
- Sample260830-1demaaak2t
- SHA256 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850
- MD5 dc95438760cc8ae9e8b9bcbfa6f63da3
- SHA1 7e5b9bc2c4c04125bb903ae5786788bf36c895ca
- SHA512 94fe8dca6a5751cbc87511dd2ce4c373181e7d022360bef269eb6f59700fd476a446ae578030afa0a435659911b124819bab3a94bf11bfed91fd73a0f10cb401
- SSDEEP 24576:L9jBQ++rL6SK2+yQev/JGQcqyIPuQR+io:L9jBQ++vPKlyQwJ+q1PuQRa
- TLSH T15805F2083799ED06D4655FB45C31F7B40FB46DD5A820D2078EFABEEBB835B45A848283
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
xworm
Version
-
5.0
C2
-
31.56.209.234:443
Mutex
-
6LTYhMtYJSwSKkQV
Attributes
-
install_file
USB.exe
aes.plain
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/5076-12-0x0000000000400000-0x000000000040E000-memory.dmp family_xworm - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 2364 powershell.exe - Executes dropped EXE 1 IoCs
pid Process 6040 hfL.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\hfL = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command \"$4zz3d2=Get-Date;$gryxvg=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$kxgwli=2021;$cshmie=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGhmTC5leGU=')));$1naghp=[System.Environment]::TickCount;& $gryxvg -FilePath $cshmie\"" 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1052 set thread context of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 6040 set thread context of 820 6040 hfL.exe 94 - System Location Discovery: System Language Discovery 1 TTPs 4 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 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hfL.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2364 powershell.exe 2364 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 5076 MSBuild.exe Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 820 MSBuild.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1052 wrote to memory of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 1052 wrote to memory of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 1052 wrote to memory of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 1052 wrote to memory of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 1052 wrote to memory of 5076 1052 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe 89 PID 2364 wrote to memory of 6040 2364 powershell.exe 92 PID 6040 wrote to memory of 820 6040 hfL.exe 94 PID 6040 wrote to memory of 820 6040 hfL.exe 94 PID 6040 wrote to memory of 820 6040 hfL.exe 94 PID 6040 wrote to memory of 820 6040 hfL.exe 94 PID 6040 wrote to memory of 820 6040 hfL.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe"C:\Users\Admin\AppData\Local\Temp\396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5076
-
-
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$4zz3d2=Get-Date;$gryxvg=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$kxgwli=2021;$cshmie=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGhmTC5leGU=')));$1naghp=[System.Environment]::TickCount;& $gryxvg -FilePath $cshmie"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Roaming\hfL.exe"C:\Users\Admin\AppData\Roaming\hfL.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6040 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:820
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\hfL.exe
- Size 833KB
- SHA256 396750d3837d60b8d8aa0253a5b569acfcdf872224e01ecd8f744dd73db4a850
- MD5 dc95438760cc8ae9e8b9bcbfa6f63da3
- SHA1 7e5b9bc2c4c04125bb903ae5786788bf36c895ca
- SHA512 94fe8dca6a5751cbc87511dd2ce4c373181e7d022360bef269eb6f59700fd476a446ae578030afa0a435659911b124819bab3a94bf11bfed91fd73a0f10cb401
- SSDEEP 24576:L9jBQ++rL6SK2+yQev/JGQcqyIPuQR+io:L9jBQ++vPKlyQwJ+q1PuQRa
- TLSH T15805F2083799ED06D4655FB45C31F7B40FB46DD5A820D2078EFABEEBB835B45A848283
- MD5 SHA1 SHA512 SSDEEP TLSH