Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 01:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe
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Size
44KB
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MD5
0f56fc3cdd909395ac7f068d03c42403
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SHA1
c41e9db0cba01dcd9c38638a039c3980d899ccce
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SHA256
8883db0a214087a94a2dfe4a2df1464c30330115bcbe6c792f8ba77ec8d226b2
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SHA512
c6514b2cd73127f0bb9b2952a90da4dd89b2c82c7d146623d877957204100635459234a08fd5463d0c59d1b74e2462fc2542ccc371a01d27305b62fbc772fd9d
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SSDEEP
768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66Tcua:vj+jsMQMOtEvwDpj5HW5scua
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
Processes:
misid.exepid process 2348 misid.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exepid process 348 2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
Processes:
2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exedescription pid process target process PID 348 wrote to memory of 2348 348 2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe misid.exe PID 348 wrote to memory of 2348 348 2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe misid.exe PID 348 wrote to memory of 2348 348 2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe misid.exe PID 348 wrote to memory of 2348 348 2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe misid.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-23_0f56fc3cdd909395ac7f068d03c42403_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2348
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD54523173848f52d915fbf9a20080d1db4
SHA1cde67a5399dea86d0a4ca3696e8eab725dc4df6c
SHA2569275c066e731078ab79b84d61b0972e9f4e42e49a74eaa4cc67d034d67b29953
SHA51277da2c0767265079eac3bac7a4f3d09f5b3e56e3065b27b93c0c09c44a809c5be6908ea70c1d06c89d276b2b5b72f49f0a5bc1d19987c701baa56f97e3d50801