Analysis
- max time kernel
149s - max time network
153s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
- submitted
27/10/2022, 16:01
General
- Target asd.exe
- Size 476KB
- Sample221027-tf8jtacff2
- SHA256 405d90a313a8c61baefe1682a5b1ba97812af6ce0824603833dc4524caf08d2c
Malware Config
Signatures
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\asd.exe"C:\Users\Admin\AppData\Local\Temp\asd.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asd.exe"C:\Users\Admin\AppData\Local\Temp\asd.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
System.dll
memory/1540-70-0x00000000001C0000-0x00000000002C0000-memory.dmp
memory/1540-69-0x0000000077570000-0x00000000776F0000-memory.dmp
memory/1540-72-0x0000000077570000-0x00000000776F0000-memory.dmp
memory/1540-71-0x0000000077390000-0x0000000077539000-memory.dmp
memory/1540-62-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1540-65-0x00000000001C0000-0x00000000002C0000-memory.dmp
memory/1540-66-0x0000000077390000-0x0000000077539000-memory.dmp
memory/1672-64-0x0000000077570000-0x00000000776F0000-memory.dmp
memory/1672-63-0x0000000077570000-0x00000000776F0000-memory.dmp
memory/1672-56-0x00000000039B0000-0x0000000003B71000-memory.dmp
memory/1672-54-0x0000000075201000-0x0000000075203000-memory.dmp
memory/1672-58-0x0000000077390000-0x0000000077539000-memory.dmp
memory/1672-57-0x00000000038B0000-0x0000000003A0C000-memory.dmp
memory/1672-73-0x0000000077570000-0x00000000776F0000-memory.dmp