Analysis
- max time kernel
148s - max time network
142s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
06/11/2026, 19:54
General
- Target NOVA PT.exe
- Size 229KB
- Sample261106-ym23ts1w2m
- SHA256 f7b9d22777e12fb2b92c525f934f93444cd29c3fdd6bef355263df56ff6a1e5b
Malware Config
Extracted
-
umbral
-
v1.0
-
https://ptb.discord.com/api/webhooks/1568331236257038556/LjnV8r7jh8PrH2izpeV0yxP_nt0aZf2NcWf-Yrc-CE3J6-W3nNXJGBtb4-dFGWWZ-0KZ
Signatures
- Family: Umbral
Umbral stealer is an open-source modular stealer written in C#.
- Detects Umbral payload 2 IoCs
- 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.
- Queries system WMI classes for hardware identifiers 2 TTPs 1 IoCs
Uses WMI to read hardware serial numbers or the system UUID, commonly used to fingerprint the victim machine.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 43 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NOVA PT.exe"C:\Users\Admin\AppData\Local\Temp\NOVA PT.exe"1⤵
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Queries system WMI classes for hardware identifiers
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/5288-0-0x000001523A330000-0x000001523A370000-memory.dmp
memory/5288-1-0x00007FFDCD7AF000-0x00007FFDCD7B0000-memory.dmp
memory/5288-2-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp
memory/5288-3-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp
memory/5288-4-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp
memory/5288-5-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp
memory/5288-6-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp
memory/5288-7-0x00007FFDCD620000-0x00007FFDCDFC4000-memory.dmp