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
28/01/2024, 01:35
General
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Target
2024-01-28_7988b9d7edf6bfec33c40c8f0d730e75_cryptolocker.exe
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Size
61KB
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MD5
7988b9d7edf6bfec33c40c8f0d730e75
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SHA1
1526e47162e9a26991ad6c2f8363080964711ead
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SHA256
28568b7f11cd194fb3e1b57b04c67243609e29fb1b348eb2f0c9b5d6d842cc1e
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SHA512
033650d09d6aa2b8a98a50d4089b177f12669f2ecbf402784dd6ebdf59ab4a97b4431f3253c4c2ce5b2a97cf449920b1c0892787e00dcd37eb3880159537fee0
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoOY:1nK6a+qdOOtEvwDpjb
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\2024-01-28_7988b9d7edf6bfec33c40c8f0d730e75_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-28_7988b9d7edf6bfec33c40c8f0d730e75_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
MD538258c08c683eb20db5f04992e6235d8
SHA1fed8768c1a1c7e72f92322da78f8bc882e9ff46b
SHA2566d86348cf4ae3463da89f4a6d59b9b8d45e86faf792dc4ee4b19531e8094e94c
SHA5121399c2493b6c5abaa22177386ce6017370660bcceabe8393571814a4eda0790a279b7a9c5d68e5fa04d98b3156454901f1e93264b5c42e44d042b9248ce1528c
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB
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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