Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
15/04/2024, 14:58
General
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Target
2024-04-15_b47978fcaf211f0f20d131d1a0392f55_cryptolocker.exe
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Size
37KB
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MD5
b47978fcaf211f0f20d131d1a0392f55
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SHA1
0f78e953ae1cd15f5728e8480f1cde3829c23835
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SHA256
3c4562e6ea93c1968850e062a3b25d2c9c8abd1f4b45cfbf09242eb95a8796d4
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SHA512
9be23d5c28a3d18e358c5dfe113d71756b7ad43aa0d906324e89d39e0c07883a866d8e498f3144dca93e39dca33f287218b0465a07e2914b27942dae954bbb97
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY0:qDdFJy3QMOtEvwDpjjWMl7Th
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\2024-04-15_b47978fcaf211f0f20d131d1a0392f55_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-15_b47978fcaf211f0f20d131d1a0392f55_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
37KB
MD5662efdf50b77cb8cb49257e545a1b9ec
SHA16118c4ac8f88de839b70bd8134caee471562a269
SHA2566d20381b8b0bc740ed52b041b1bac509aadf3fd428884ccab645bb2c067fca92
SHA51227866d20b8c256d6d06b425b95c8bbc93a4fb49c2de5328bdce72855f79337733405775b855b18c870cc99bef248361aef7dafbd3189e75a91274d0919e59b33
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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