Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
28/05/2024, 23:41
General
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Target
2024-05-28_83fef78ca4f4eef70fdd50d96aa21e4b_cryptolocker.exe
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Size
40KB
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MD5
83fef78ca4f4eef70fdd50d96aa21e4b
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SHA1
61c9fb395eb8308693e99ed3962be11d2d254e0b
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SHA256
4837d08dd05a571f9547ca4b843cb7d137f54b415896b5e0499ed0cc64da0729
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SHA512
78b2daa409a9df2480655ac4ed26c3799748208c9b2d6348220567aa76d6b6680cdd05d24845013f869fd8f563bf7299b87c29f8a2f81c0fbfb678d731c1e6b8
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan81:qDdFJy3QMOtEvwDpjjWMl7Tdn81
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\2024-05-28_83fef78ca4f4eef70fdd50d96aa21e4b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-28_83fef78ca4f4eef70fdd50d96aa21e4b_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
40KB
MD5c66af2649bc6e81432c3b325d4c4eb84
SHA179b63910897c8dab56a9daa445d009adac403496
SHA256ecf7ab58883af9426d5440ce22ee72f57aa1bf9e5499fb7a746cfdcfe977890b
SHA5128c7c9e0edfd73543861141aa027beb170938e317b00bf919354570266fc30528b0152024e4e5feff91d666562e6800f8cd2c26cf3c16e1e81f9364d5eba05b4f
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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
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB