Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
19/02/2024, 16:41
General
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Target
2024-02-19_89aa2bba10fab9a0ec5268f9581ad259_cryptolocker.exe
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Size
80KB
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MD5
89aa2bba10fab9a0ec5268f9581ad259
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SHA1
4b5ed772687d67a1a07c28001aa50631f5a2e9c5
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SHA256
aee0d92a4bf5e02905ab80aa811d95227a8eab289ceb7951fcdf7844c8986a23
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SHA512
aca8d43439a2d8550e1d04e7bf47539fc5a069fc38e1a3cd57ac45452c8e3d10aa9dbf0fe54aac19f6c7c25fde4b04f2f6a1bc87e7f0c9cf29245d41378bf5a1
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBd08:T6a+rdOOtEvwDpjNtD
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\2024-02-19_89aa2bba10fab9a0ec5268f9581ad259_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_89aa2bba10fab9a0ec5268f9581ad259_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
80KB
MD57cb7ffb555a6dfc01997c209a1576ffc
SHA16e73253ca0e8f4935f6f529a2591c85ad69dc974
SHA2560f2980e3347914aaf261e3665784844ba44ba41460e79b7d428c39a97b3369f2
SHA5123cef5e52f407b9ca7bff69c81d93ffadac2149f9d1a96742ea7dde8b45b87045ed26092672c166af0f2c4d57609c151a4270da55cd7ba00157e95f773001dfff
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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