Analysis
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max time kernel
138s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
04-02-2024 00:35
General
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Target
2024-02-04_bd3ad963ccc4c946c004541cbbab458b_cryptolocker.exe
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Size
61KB
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MD5
bd3ad963ccc4c946c004541cbbab458b
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SHA1
dc9eca211fe5527b7b267a9904da69e75450f822
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SHA256
fb81188e74f11e202e1619c5982bc38af5c9f7cf6a7f6f84798cf35a7262ab71
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SHA512
5f75103d61a607b67a6d1436d8a048a71dee3a83a0e337bc091bc1c436f33aa93002ade514d0b26ceed6d2943ab0012b6e6c3a20c17acab4c969e07bb0d5a9cf
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY7D4:1nK6a+qdOOtEvwDpjv
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 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 4 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\2024-02-04_bd3ad963ccc4c946c004541cbbab458b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-04_bd3ad963ccc4c946c004541cbbab458b_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
61KB
MD591b5d64959c2757f7a9cbd6e87d9780d
SHA19b23b15d4c47d83097ba44b8c8ddbd90a250d63f
SHA2560d2321096a85c0334c07eb252cae4776d6dbed0a189b1674ad18454d4dbeaacc
SHA512a4b870a234eeab31caa1970898bf040ebc2ba2755557a69c05c9a77fbc4e19b13c9883b861201c7509b76c87d83e2fa024ef6d190223ee92a11e5ba85dac2f21
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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
24KB
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Filesize
24KB
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Filesize
60KB