Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
29-01-2024 09:36
General
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Target
2024-01-29_6acb6551f27d430c6af3691376481878_cryptolocker.exe
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Size
100KB
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MD5
6acb6551f27d430c6af3691376481878
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SHA1
31fd50c4fb9e658198a4549e243b990cd9b16be5
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SHA256
dcd08a2df54b699ae9f47fcbf96bfcafa9738f89c646dc66b5786f72818239ba
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SHA512
fe1005f87e5536401fa7a858a062aee4774c1bd3c308df4cdda4a36a379f701ce2a72c68b86d641ecb00dc109e7d99e075626d1c6a4877264f435eee1903b5ca
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviy6v:AnBdOOtEvwDpj6zj
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\2024-01-29_6acb6551f27d430c6af3691376481878_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-29_6acb6551f27d430c6af3691376481878_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
100KB
MD544a5480f51196a9b8230c07b188b09cc
SHA1f2f5cb8b9bf0d1e8f473fd3ba911f71604f18783
SHA2562920d9a506bca776e2f0c47e3b56b2c53661f98471fe84e88e8ce96ad045569b
SHA5124451fc881b8847225c3bb69088e228bc27411476dcc093994da7445179486ed29ed01f7981155f493f17d1424320b04b847a45a7d63cd23b6e8b7448c7917dce
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Filesize
86KB
MD5a806cbc6c22329560c580dba69db70a1
SHA126f12f0fa71065754e8e584601323a05dcf1453a
SHA2561d3238081d507cfb3fdb2d7d1b1f471517f40f09e26935a979a506f434e86fa2
SHA51277ccafbc71d322b023361f71078af263cf16a362be146b363b8c99a9c6c47c49926ad8598ecd1dbe738599c08a3bca4cfd3e0a830eb7579d5847a373efc7b070
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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