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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
12/03/2024, 05:47
General
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Target
2024-03-12_9b88f5cafc2516e4c004070d507fd6d1_cryptolocker.exe
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Size
82KB
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MD5
9b88f5cafc2516e4c004070d507fd6d1
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SHA1
9e88b168490198a38fc55b829d1198219c4ae4b7
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SHA256
1dcdc533d4f43e281866d3abf0a68acf47bdbace3913a38fabd415bb55bbd171
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SHA512
49998a9acaace6de19682362ab81a1a10fcf8c9fe83b532bf593e0f15320b62f8eb58c0fa502ac955074e4b23cb6deda660711c59860a5ab18dd358343c54543
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdeS0:T6a+rdOOtEvwDpjNtQ
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\2024-03-12_9b88f5cafc2516e4c004070d507fd6d1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-12_9b88f5cafc2516e4c004070d507fd6d1_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
82KB
MD5f577c7eaaec5fdd8883fee04e7bc3acb
SHA16402f3bfb7ea3fd57b060da663cfd61e3d4a9d4b
SHA256206c325ef9947312e03fe941619442d7ffbdcc43801a50ac8bacb693a3649792
SHA5127ed77cdaa6b80ead0e044903b1764009090757d83a83d9b9dfbcb3dc2fe267382f8e2db6be50a2ac7c8dde3f239f5a5f5dffaec20ad4a376dd44ab7eaf414278
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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