Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
03/02/2024, 23:25
General
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Target
2024-02-03_555fdc85d5cc6bc0e9999df2fa5dad3a_cryptolocker.exe
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Size
90KB
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MD5
555fdc85d5cc6bc0e9999df2fa5dad3a
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SHA1
9230e85b094a2e46b6d125ff6c56c041f782743a
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SHA256
4d403eb05a6e8cfb0e92e20dbe562064ed9cb800149f147b3656129c8df30526
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SHA512
ce9cdb218ae56cce64bb1c36f63435325f8f04f3e9d9c6ada48b46c0036d6b6c04e4c6a8f28156c12fe6f92a2bdb45e708d0fdb57a2ab5f0f700e80164011e9c
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy874:zCsanOtEvwDpj4
Malware Config
Signatures
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Detection of CryptoLocker Variants 7 IoCs
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Detection of Cryptolocker Samples 7 IoCs
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UPX dump on OEP (original entry point) 7 IoCs
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Checks computer location settings 2 TTPs 2 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 7 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\2024-02-03_555fdc85d5cc6bc0e9999df2fa5dad3a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-03_555fdc85d5cc6bc0e9999df2fa5dad3a_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
65KB
MD5b2598aa9e1cfbe444ef7f3c5e87aaf6a
SHA1e26739606b6d2f8c09a5c0ef8e5ce45f87b1f7f9
SHA256e6a9c91acfc2f41710fbd07458b1413991612cfedb0cde5208cf0f9b67cd56b4
SHA51256c8d53e6c77cfa5b035c5963b543b9265b1b51b48116d563f89bc912d08d2e60fd8bc78dbd425ca6240373285411081a808be647499329c2097d78031588b4b
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Filesize
86KB
MD5b8b3a91449c687fd93ba7fd700ce40c4
SHA1f7a9e1f3d64c724433712c9434cbca421dbb7e80
SHA25659fed175b4368933626cf59e5187b36033317b5a956976741b8a8ab89c00ab6c
SHA51244affd9a1f54a9a6b359c3d48630b50e9265de3c55768cfdcb7f2f049fbfeaf4dace3140fb32265d2e5d69843b946f7df2baacfb4d7f85dcb22f88d7d3bf231a
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Filesize
67KB
MD5d1e9b78538bc330579b83d40e9605cc9
SHA1c9e9f4f4502c562c0b536146f776f0cfc88f3690
SHA25619993a8e7362d4f4fffbecc4124727eb1b8d94e621c44d9e19ee625d93ac19e0
SHA512e239d2e61265886d8f885ce2a7108ac3f21f2c5e8c1fcf9b6722083a14be23104357aecfa8a82093ab48f1cf9b38d4fcc7e01cf7bb0650039802b8bb34265783
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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
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB