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Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
05/04/2024, 00:54
General
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Target
2024-04-05_b8d189c8e7d03f45013d35c6a7c925c4_cryptolocker.exe
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Size
36KB
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MD5
b8d189c8e7d03f45013d35c6a7c925c4
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SHA1
bacd2810571b01536da5c5812e16ef99a5c2dd1b
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SHA256
ad920aa9a08d242947e24e588a73a5f6f7447e6f574cea1ffe1101565d961eab
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SHA512
03d86578159ac3b950c1e923c725e1bd797923e818d0ecd30c5ce0f03b266f2a888ea5b1f02e4697f5674a0673e416bf00a07d5b1e2f814817aad50ba5adbf36
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT40:qDdFJy3QMOtEvwDpjjWMl7T40
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\2024-04-05_b8d189c8e7d03f45013d35c6a7c925c4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-05_b8d189c8e7d03f45013d35c6a7c925c4_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
36KB
MD59861edef71d9f1804c301198a347fe6b
SHA1f2aef547638b296d7992edcb8fde6a90f6ec377f
SHA256897655acfc5c0700b0c96d8306b8bb4a017251cc0128ff5dfadd26da3bb6e638
SHA51200ec1dbf24a271d26fb4c5b608ba5f58324872f0a8209c799191fe59ddad0e4a32a9db74b8e4821910b095a1ccf3022784c6f5a5e474d5aa26187d71bae58ebc
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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
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB