Analysis
- max time kernel
107s - max time network
110s - platform
windows10_x64 - resource
win10 - submitted
21/09/2020, 10:29
General
- Target Versandrechnung.exe
- Size 703KB
- Sample200921-1reqmbbn5e
- SHA256 18dca52ce50cdf148ca233fb83cd2c3e3c7b39a9ac254c96ac374ae63eb8f44c
Malware Config
Signatures
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Versandrechnung.exe"C:\Users\Admin\AppData\Local\Temp\Versandrechnung.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1536-0-0x0000000073410000-0x0000000073AFE000-memory.dmp
memory/1536-1-0x0000000000530000-0x0000000000531000-memory.dmp
memory/1536-3-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/1536-4-0x00000000054F0000-0x0000000005563000-memory.dmp
memory/1536-6-0x0000000005940000-0x00000000059B2000-memory.dmp
memory/1556-8-0x0000000000400000-0x0000000000472000-memory.dmp
memory/1556-10-0x0000000073410000-0x0000000073AFE000-memory.dmp
memory/1556-13-0x00000000055D0000-0x00000000055D1000-memory.dmp
memory/1556-14-0x0000000005170000-0x0000000005171000-memory.dmp
memory/1556-15-0x0000000005210000-0x0000000005211000-memory.dmp
memory/1556-17-0x00000000067B0000-0x00000000067B1000-memory.dmp
memory/1556-18-0x0000000006AF0000-0x0000000006AF1000-memory.dmp