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
29-01-2024 09:23
General
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Target
2024-01-29_189f2121ce4c1348ad00db7e8b9b99ac_cryptolocker.exe
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Size
55KB
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MD5
189f2121ce4c1348ad00db7e8b9b99ac
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SHA1
02ced61dbfc9e24833835b36242ea54dac50be03
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SHA256
09b160ed496778f3c77397dc324d5d64506a32f123a2f1baef83309555021ba8
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SHA512
191a655b852f27d463d3b65d4dec47c9b3101cb23be276648439fbadb40b4b878f68a127af43b7e9b187fc41847be3cc675972aee8bf5b62465dabc840d05663
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5axc9C3:z6QFElP6n+gKmddpMOtEvwDpj9aYap3
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_189f2121ce4c1348ad00db7e8b9b99ac_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-29_189f2121ce4c1348ad00db7e8b9b99ac_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
55KB
MD58fa6ee94f7c35dd0d2e7081077dd2269
SHA19c58e443b2bac0a91c15bc1de380ccbad218ec3e
SHA256c7187e59a07c7fc0348ece67aa29db43a6dd0563ff73ebf15df2db28d52a1d6c
SHA512b507c8ca38bfdc980a2312ec62ffb39ef2d66807e0fe67433378667201139e4c4f77d0f15e65ae1ec7b7f70cc7552c3073568ab7a96d4d7c60f419fbb79a161b
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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