Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
31/05/2024, 15:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe
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Size
41KB
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MD5
7d3b385c9bba0e80c388a6de65ad0392
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SHA1
86db304a427e7fcec60988d20b80d2b3ceed9af1
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SHA256
57ac5ce79f88140eacbc77f0be273a7685e56314812068b625fd452cc13616c1
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SHA512
49706e8a773e18dd6e2bba348e35e02543347bb1fbfdeeb5f143245010d34bf4aa44c31fa0f436f5e376915efd5770b2ecc6b6287ba7be5efe47b64489beee4d
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SSDEEP
768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnC/:bA6YcA/X6G0W143QQ
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0009000000015c23-21.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 1616 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2776 2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_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
description pid Process procid_target PID 2776 wrote to memory of 1616 2776 2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe 28 PID 2776 wrote to memory of 1616 2776 2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe 28 PID 2776 wrote to memory of 1616 2776 2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe 28 PID 2776 wrote to memory of 1616 2776 2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:1616
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD54ce5ee58bab81c85040b65fb58e3475c
SHA1743e24d5be123bb92a2d9049adb83c2e00b31429
SHA256b96b7f46008804d229d68f9f6e0bfb6ab2828622864f44d99cb410e83196ac02
SHA5121c2b95f7b07d6b148af3a4753924a337298e8af54d24c005e8cc56499731a1d17a74a8ba0a322c7393154c2b9cc2c944d4d5482c53cfd7f867db0cc382e911e4