Analysis
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max time kernel
150s -
max time network
36s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
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submitted
23-02-2023 15:13
General
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Target
tmp.exe
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Size
25KB
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MD5
30b5426ee9183f43fba9a8a6b6b32b97
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SHA1
d0b8cde6d8c38e294ce6275b0f935677b07d2202
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SHA256
e18cf6502122b168dac6c932cd89739e313154ee9b73d6ddd692d4ad990aceb0
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SHA512
adef79c0748b1e8c274f93879c1c068e0d54b88de94fbb01d4d51bd222a6493f8d2cc68f53adab5407bd59249dfa2fdbc8f511bbec3613772591b0ea4d79afaf
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SSDEEP
96:jFQgbeIBVLyrgoJ/sTfNILBevmXR5MMRWnwLoLEk8LfjNiRB4e3T3ew5tvEzNt:jFhyIaUo/sTfNILwEfdRTLat8LLGTvu
Malware Config
Extracted
purecrypter
http://argentum.com.br/well-known/acme-challenge/k/h/d/g/Pjogwzrhh.bmp
Signatures
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Detects Smokeloader packer 3 IoCs
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Suspicious use of SetThreadContext 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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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
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C:\Users\Admin\AppData\Local\Temp\tmp.exeC:\Users\Admin\AppData\Local\Temp\tmp.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\tmp.exeC:\Users\Admin\AppData\Local\Temp\tmp.exe2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
256KB
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Filesize
664KB
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Filesize
48KB
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Filesize
48KB
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Filesize
256KB
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Filesize
88KB
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Filesize
36KB
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Filesize
36KB
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Filesize
36KB
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Filesize
36KB
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Filesize
4KB
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Filesize
36KB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB