Analysis
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max time kernel
140s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
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submitted
22-12-2022 13:17
General
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Target
VAN DE WERT - po240975_jpg.exe
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Size
445KB
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MD5
e5fdfc2e819712600c1cf79d4f274022
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SHA1
bc947ca0dc25f1ba54ccbe5a14d84f53f22feb9d
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SHA256
7c54b7d54c409f3eee45a1ed7e7eee5da5c0577c2fcf974defa989d75a9ef9aa
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SHA512
aec8f7481909206169cc7f51b6fb7747e214f237db71ba7ec523a495256179412a17eab91346e9d04b6c622743a4b7693b5bc64a6c3e0ece9f9b4b63c47ddf21
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SSDEEP
12288:SzgOyj6Yd/6W48bLL+NVkOb/wZKpYgIgfC:jOyvd/zLLAVkObosW
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
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Loads dropped DLL 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Program Files directory 1 IoCs
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Drops file in Windows directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe"C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe"C:\Users\Admin\AppData\Local\Temp\VAN DE WERT - po240975_jpg.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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Filesize
1.7MB
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Filesize
1.5MB
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Filesize
1.5MB
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Filesize
1024KB
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Filesize
1024KB
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Filesize
1.5MB
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Filesize
1.5MB
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Filesize
1.0MB
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Filesize
1.5MB
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Filesize
1.5MB
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Filesize
8KB
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Filesize
1.7MB
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Filesize
1.0MB
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Filesize
1.0MB
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Filesize
1.5MB