Analysis
- max time kernel
121s - max time network
121s - platform
windows10_x64 - resource
win10-en-20211104 - submitted
21/11/2021, 16:52
General
- Target Termination letter_19992.xlsb
- Size 76KB
- Sample211121-vdd3vshbc4
- SHA256 799f5e8dcb7f46faa0b1cfe9a2917539bf3b66a376478eb0270da8d80552e225
Malware Config
Signatures
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of SetWindowsHookEx 14 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Termination letter_19992.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2740-118-0x00007FF8758D0000-0x00007FF8758E0000-memory.dmp
memory/2740-119-0x00007FF8758D0000-0x00007FF8758E0000-memory.dmp
memory/2740-120-0x00007FF8758D0000-0x00007FF8758E0000-memory.dmp
memory/2740-121-0x00007FF8758D0000-0x00007FF8758E0000-memory.dmp
memory/2740-123-0x00000298A9E80000-0x00000298A9E82000-memory.dmp
memory/2740-122-0x00000298A9E80000-0x00000298A9E82000-memory.dmp
memory/2740-124-0x00000298A9E80000-0x00000298A9E82000-memory.dmp
memory/2740-130-0x00007FF871D60000-0x00007FF871D70000-memory.dmp
memory/2740-131-0x00007FF8758D0000-0x00007FF8758E0000-memory.dmp
memory/2740-132-0x00007FF871D60000-0x00007FF871D70000-memory.dmp
memory/2740-153-0x00000298A9E80000-0x00000298A9E82000-memory.dmp
memory/2740-154-0x00000298A9E80000-0x00000298A9E82000-memory.dmp