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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
30/04/2024, 04:46
General
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Target
2024-04-30_4c5c0997d641bfcf166b3c84308e77a9_cryptolocker.exe
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Size
80KB
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MD5
4c5c0997d641bfcf166b3c84308e77a9
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SHA1
6f942981bfadb9f18f5b8bef0583875409588bcf
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SHA256
f243dfd9b8e06e46b403414293555faf3b531467aab57c9e22cb41c970df1b23
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SHA512
ada4aa9d3add42f2bfd978af1bb896085716d3acee1b94c918f1993b71d83c57ce7104e9fc9d847fe61ae17367088d5bb62fc3ce0ed5e757b7e8ecd9251b4a10
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qp:zCsanOtEvwDpj9
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\2024-04-30_4c5c0997d641bfcf166b3c84308e77a9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-30_4c5c0997d641bfcf166b3c84308e77a9_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.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
MD5eb6431918cf6ee62f3e2c5f7d42092e7
SHA14ab4c5bea1eda0db59f090129f631dfe0f3c5e88
SHA256a02c2448c5c33c08e2d0647a714485bf759b2ac0666b76db26c744a928cdd78f
SHA5125090e2ce4dd99e62f07af9ef92b5343bc1a7ee298df82fa611cc768d4fdca13368f657c86cfaed5d60743bacbca50bc513dd65bde65fd35ed17ade3c08d070c4
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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