Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
28-03-2024 03:01
General
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Target
2024-03-28_ecc1fa9c5ee620012bb18165f028ae45_cryptolocker.exe
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Size
50KB
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MD5
ecc1fa9c5ee620012bb18165f028ae45
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SHA1
c920017686dbf101ac21a8c7545dd8941ee01fb4
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SHA256
18eaccdd93e35e3c5349fdaf02db6546b65c5f303f06a9333bb6866541e17490
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SHA512
09562307c37fba300e410df3a70a113cf7adb7c1002138f73c6c7d2e8057139f21f59ce55005ebc02536c3e190caba52bc33629e821a808d4a7c15a3a1e01605
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQ6ugl1:BbdDmjr+OtEvwDpjMK
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 2 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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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\2024-03-28_ecc1fa9c5ee620012bb18165f028ae45_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-28_ecc1fa9c5ee620012bb18165f028ae45_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
50KB
MD52aae72127c45c169f81cfaf62f940241
SHA10785abcaae88d64a794b06a4b406ccc0c4fda46e
SHA256512054d61e2a3093edf741ad9f751a81cbf2fd1b36480bcfe6e4f11914552d09
SHA51265a18211f365c63b874db382a8719b5f0e48f3d261d48a1734936e4786f47a1d4d9e6d9e4fbf21cce8683149751e430ed7cd716fdc8f283714ba0eff3a8a5b75
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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
24KB
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Filesize
24KB
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Filesize
64KB