Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
21-05-2024 16:09
General
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Target
2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe
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Size
42KB
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MD5
fcf13a64d77f3e32c6b133a03c6e9dfd
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SHA1
d34bde97f5b5d42735ff216d0ad4f714354a1aaf
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SHA256
1e695056cf51fdb531106669b80af6dc19286dce98f8378c79a16facaf9a4a5f
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SHA512
749055df9956f8c0797db4b395ed69b48a34c5dfc13e3ba549d62f791aa6f4a5182767583c5fa689398706f32a7b963b0309ce5a1f7bf15f8dae6e30b554984d
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqtH:bCDOw9aMDooc+vAqtH
Malware Config
Signatures
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Detection of CryptoLocker Variants 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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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\2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD57a02f2d61a2ab3062f16d4da15213ab9
SHA1a38f91f5cde088d1ac25d3c34e4b2a3ff15c64a7
SHA2563a3c16c337cc1d3541a36b420369a52b5dab99fb1281bf2ad407349a037d3035
SHA5123db25e911a52d676df716197cb26343880662a5cfdb656de69c9abcbd1ae4696fda0bf4e194a9439f9b6b434332ec36c4de30507a10d424933c968413081b8db
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Filesize
40KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
40KB
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Filesize
40KB
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Filesize
24KB
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Filesize
24KB
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Filesize
40KB