Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
17/02/2024, 08:00
General
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Target
2024-02-17_f9c0f425fc08f9edc48a04ba36704c4e_cryptolocker.exe
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Size
88KB
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MD5
f9c0f425fc08f9edc48a04ba36704c4e
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SHA1
05ab1de00402cace5bb411df435c0eb35b2ddd92
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SHA256
50e48d7a00ce6cde4403f24f3a37124efadf1a6c752ac8d467ec0787fe99c61b
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SHA512
3f79a1878b377deb50d47714b66f7610c55c842d0a515cff612a362cba24ea210df00c4a94a41cfaddadaa04e4a23ec47d87765e4a05c51ab05da3536a392179
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgd/:AnBdOOtEvwDpj6z5
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\2024-02-17_f9c0f425fc08f9edc48a04ba36704c4e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-17_f9c0f425fc08f9edc48a04ba36704c4e_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
88KB
MD58856020f9e8eb1d01716006d48efddb4
SHA172c497095e26c46e2ea7e7e02f9ea7743ed2ca60
SHA2568eb66c353f7f4e26b2c2db923db60d3ad24c875b02283aa355c45bf8a21cf331
SHA512bc7efab0e202e9c745e9bad9f169374128d72b3900cec3ee12be4864665a5b6a138bf301975616e9b24588124ed7848b7f399250ec96e3c8e39042da1654a578
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Filesize
60KB
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Filesize
24KB
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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