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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
04/04/2024, 22:26
General
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Target
2024-04-04_545c3e1b346ce636a00e86c7af209e0f_cryptolocker.exe
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Size
109KB
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MD5
545c3e1b346ce636a00e86c7af209e0f
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SHA1
c8a3135d4e64a568e17b14049bfcacedb53e85fb
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SHA256
5bfa6c8d1ee0f2137dbaef9d2c9df17a088aaf7abc3efa4ef077df418b0579c6
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SHA512
3585c7ba43db3591eb2492a0c6ceef561ba15018bea2c5b9c918d29c83bf2a919bb6c186e3f3af71aa9345c3acb1f3bb6a6c0712dd46fc96957e92223e8b749a
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GkszfD:1nK6a+qdOOtEvwDpjX
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\2024-04-04_545c3e1b346ce636a00e86c7af209e0f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-04_545c3e1b346ce636a00e86c7af209e0f_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
109KB
MD518f7164c670735fba3eb7a1ec91297b3
SHA1cb14062748f4662ef85d3f1e91eb0702f62d8047
SHA256da8eeba016ae3d9d9b1807057476006d7c62371fa6ae3d378cfa8f3d426e894e
SHA51256e94481b38aac81b408a2f9910299452b09313f01713449cb7bcccceca0381d5d4ebc337e4a2fef7c9b95aa950235968710eb5121f267972379dce8f2637ae5
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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