Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
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submitted
03/02/2024, 19:33
General
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Target
2024-02-03_bf9fdbca7e93c0429e2706f2b202135f_cryptolocker.exe
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Size
101KB
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MD5
bf9fdbca7e93c0429e2706f2b202135f
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SHA1
f5529f0c0ba4af77297afee5ba6c336ce591461e
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SHA256
44b540b9cbbd6890aa27c6001200b191348687c1c674413b4586e9c90a8c742d
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SHA512
7e72f00cb975d71b353308ad51e6c6c8dbddc1ed70967aaca4682a464295dfb07b4b28a75739101e6cdc443f6de826f3e9f8345c0e33ff24e3c99d6db52ad07c
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviy6ixa:AnBdOOtEvwDpj6zV
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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Executes dropped EXE 1 IoCs
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Loads dropped DLL 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 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-03_bf9fdbca7e93c0429e2706f2b202135f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-03_bf9fdbca7e93c0429e2706f2b202135f_cryptolocker.exe"1⤵
- Loads dropped DLL
- 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
101KB
MD5384f4e0ab9b4b013a3d2cf0a74bc1ab9
SHA154a60180f864e751ff80865873066e9461029cea
SHA256d3e1dbff0820ce99e4c005877ee1c5c9d501a95ac9bf112e19da806ff59f5a18
SHA51295ead6f59a23d78a5064ecff24fd74b033553cd6fa0e74863f757cc21a513639830aa33283c731f9e5c547abdd7dec7e6e54037db0902239e2effc1f80fffc32
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Filesize
60KB
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Filesize
24KB
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Filesize
60KB
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB