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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
03/02/2024, 17:27
General
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Target
2024-02-03_5dba5502eace8ca31e9f8e914f5ad76c_cryptolocker.exe
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Size
93KB
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MD5
5dba5502eace8ca31e9f8e914f5ad76c
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SHA1
f965591203c24b98b81688bf768c4df9c076f439
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SHA256
8f5434e71e1c9e7cb707c5eeefa4267fdebcc27908cb8dc47534fe3b2f4e1262
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SHA512
d1e93caf8dc989f4b99d65087cdda5fdd84b468f659556d9eeea08629a8731c6aad044ccec7f5311f086572579f370611b168450794cdb11698bed8729a40fbc
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0QVOEv:AnBdOOtEvwDpj6zQ
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\2024-02-03_5dba5502eace8ca31e9f8e914f5ad76c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-03_5dba5502eace8ca31e9f8e914f5ad76c_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
93KB
MD5ea032bba47ff5a1dd9fbd23c17fef40c
SHA17cb553dcffb92e4b8260be011217e5672780397b
SHA2567210e614ec892762cba21895a0c9e8077ab3b62d8b8b5e7cba6aff27221f7315
SHA51211747c058b464198b90b63b571e98f4ad976fe346a325d6e15124b19e9aac30560eacac9c9718b1de3bdc2a3c906b12f68c89c93925d9a497b0ba1dbba37a045
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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
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB