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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
27/02/2024, 21:38
General
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Target
2024-02-27_fa1274cdfbf1622e65094e7fc61dc97b_cryptolocker.exe
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Size
127KB
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MD5
fa1274cdfbf1622e65094e7fc61dc97b
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SHA1
f5863be6e49a566ac308e6fe040a0fb9f2c86e7e
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SHA256
d22a58aad15b22ec93c1d9f46d4f792baced40a493e38fba2ff8c1edec9d2ef3
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SHA512
697dd69f5fce0f30b5285c5f80c4de1916cf08156585457b6ca8f5aecc449197a77c4a87fb577ad5ce8222e9bae07c933273015b4518d946f3ce675efebf76cb
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1eIy:AnBdOOtEvwDpj6zj
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\2024-02-27_fa1274cdfbf1622e65094e7fc61dc97b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-27_fa1274cdfbf1622e65094e7fc61dc97b_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
127KB
MD5e08da75a99ff4f4d9b86661ac7bc4bcf
SHA1240e2218ea59631c305c07106d8161077e59bec6
SHA2562869657f0de7f149ca923619433380668bc99cae81ab5f1ff97c7702fc26177e
SHA512c0d7f3b9c3df92cc16dc8823ebc9de8e217523a6b06eb3c94e3fbe0f45cd866dd211c9ab128e4269bd5979d9a6e980ddfca78c0e13076a3940474c8252f5a7f6
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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