Analysis
- max time kernel
91s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
07/02/2023, 16:56
General
- Target Roqwnrsun.exe
- Size 6KB
- Sample230207-vfpblscg45
- SHA256 dfa4b25bb9a1534192d30dc3f10acd6a72c21a36bfaecae14c5d7a22dff88fd5
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Roqwnrsun.exe"C:\Users\Admin\AppData\Local\Temp\Roqwnrsun.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1168-133-0x0000000006750000-0x0000000006772000-memory.dmp
memory/1168-132-0x0000000000890000-0x0000000000898000-memory.dmp
memory/4040-148-0x00000000066F0000-0x00000000066FA000-memory.dmp
memory/4040-147-0x0000000006790000-0x0000000006822000-memory.dmp
memory/4040-146-0x00000000068C0000-0x0000000006A82000-memory.dmp
memory/4040-145-0x0000000005810000-0x00000000058AC000-memory.dmp
memory/4040-144-0x0000000005B80000-0x0000000006124000-memory.dmp
memory/4040-143-0x0000000000400000-0x0000000000458000-memory.dmp
memory/4828-136-0x00000000058D0000-0x0000000005EF8000-memory.dmp
memory/4828-141-0x0000000006B70000-0x0000000006B8A000-memory.dmp
memory/4828-140-0x0000000007EC0000-0x000000000853A000-memory.dmp
memory/4828-139-0x0000000006650000-0x000000000666E000-memory.dmp
memory/4828-138-0x0000000005FE0000-0x0000000006046000-memory.dmp
memory/4828-137-0x0000000005F00000-0x0000000005F66000-memory.dmp
memory/4828-135-0x00000000030A0000-0x00000000030D6000-memory.dmp