Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
15-03-2024 17:34
General
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Target
2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe
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Size
118KB
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MD5
5b58a488abdef734b90b879e2ad07c2e
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SHA1
5cf1289832446da7ce85a6dab566a3a92bb3f8e2
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SHA256
11f251820ee0bfbab105dea9ebf21c718ecc08f395948e2dc4d90fb5b9a403a4
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SHA512
7916f0963faa2aefbe2a3a00bee6e29c2b572c1410a278b4333a67f7ac8ec88e480322deb76f391d199afdb010a244bf0415365aaec7a5c02e0e536dd091ee3b
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp01ZNd:z6a+CdOOtEvwDpjczL
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\2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-15_5b58a488abdef734b90b879e2ad07c2e_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
118KB
MD5def234ba5f9f8fda9db7a42fc53629ad
SHA19101a1c2ac50ef5f26da3ac876255e943731a1cd
SHA256835f544e88d880732bdda5842460cff046c7083317c42615b24bab99a0562ec7
SHA512697e27c5b19c4ff66320a85c2bc92af156b06a20166b0bf4c867d67a00bf472dbe369894578743aa1c9f7787885b97b6f01a4204c3087adc3d43352f311ce065
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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