Analysis
- max time kernel
148s - max time network
142s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
14/10/2026, 10:47
General
- Target jaffacakes118_Trojan.Win32.VBKrypt.xeib.exe
- Size 1.1MB
- Sample261014-mvhtdaff74
- SHA256 5b9c4d7845d98a2b54943492f28036c7107f5f0d38deff95c4790b07a831e8d0
Malware Config
Signatures
- Detected Nirsoft tools 2 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Uses the VBS compiler for execution 1 TTPs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 IoCs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.VBKrypt.xeib.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.VBKrypt.xeib.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.VBKrypt.xeib.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.VBKrypt.xeib.exe"2⤵
- Suspicious use of SetThreadContext
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exedw20.exe -x -s 22363⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/1780-14-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-10-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-32-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-5-0x0000000002720000-0x0000000002730000-memory.dmp
memory/1780-6-0x0000000075222000-0x0000000075224000-memory.dmp
memory/1780-7-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-8-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-30-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1780-15-0x0000000002720000-0x0000000002730000-memory.dmp
memory/1780-11-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-4-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/1780-24-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-9-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-17-0x0000000075222000-0x0000000075224000-memory.dmp
memory/1780-18-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-19-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-20-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-22-0x0000000075220000-0x0000000075841000-memory.dmp
memory/1780-23-0x0000000075220000-0x0000000075841000-memory.dmp
memory/3872-2-0x0000000002300000-0x0000000002309000-memory.dmp
memory/3872-3-0x0000000002300000-0x0000000002309000-memory.dmp
memory/4228-16-0x0000000000400000-0x000000000041B000-memory.dmp
memory/5692-25-0x0000000000400000-0x0000000000458000-memory.dmp