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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
31/05/2024, 08:22
General
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Target
2024-05-31_13be1be18f0c5c065b2b8e75463dee71_cryptolocker.exe
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Size
89KB
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MD5
13be1be18f0c5c065b2b8e75463dee71
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SHA1
237eb6ba2579712d64ffdabf59afcee58528f15a
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SHA256
1fb1dc47c8c61faac20ade91fc6a2e17daaa39b83c8cac0681ab2aaac4b70103
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SHA512
8319166687ce66e54365b87c6b9c0c5e59603cc1cf90bf3ba72c5173abff30d91617b86eee1d6de83e3a3b534fab83b02d8625599b362ac18854f4bb73ff628f
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgQd:AnBdOOtEvwDpj6zK
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\2024-05-31_13be1be18f0c5c065b2b8e75463dee71_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_13be1be18f0c5c065b2b8e75463dee71_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
89KB
MD5ef31fd8d022dbb79d4da1cf122ff8b3f
SHA14f9142a235155c613125ba8d58f9a55dcb96a004
SHA256898521847f868cf46939f9df05ad907ffd15fcb5f3ac8fb4a4b99b830fc872fb
SHA512015c458a9dfa834461b07743e5e9c67646c9aa1b82843ca702cccf600081be05bfa0f62d6c6c63eb6425df764fde13dd4e17aa245e5360fcb5570237a5d7f072
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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
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB