Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
20/05/2024, 00:42
General
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Target
2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker.exe
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Size
77KB
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MD5
81ff8ff918692b52da59976913222343
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SHA1
bc4e1d9d705c1d5b592d1d8e5862ebc3a50cf623
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SHA256
2295ad673c7e18c663fbce41a7b1a592a19db4a88936bf4ce9894382ec592188
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SHA512
bbf10a26e0c9bea065217d16ed78d40ce8d756f976301008c726e97da3c9ee17c82d345b1bb98ec142ed499403c73a3909e095989890212a713a98404ecb06ef
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxD:T6a+rdOOtEvwDpjNtHP8
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 5 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-20_81ff8ff918692b52da59976913222343_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
78KB
MD597dba261f00e46cea1b1ab4ca988a3c2
SHA161d8b90ef6702cfe6c4a1855489764f48e92d7cd
SHA25686ee771676eda4a4ca7f54d72e35c76bf265c24f4ef91fbc5247dd4195c93121
SHA512fad81f71860d803955d2523d4101ff242e860b3dd7dd7ab4fa422099068bbb2bc75887824abd96e404bc3d5dc54f0f75779de887b87bb462e900df22c72b215c
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB