Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
19-02-2024 07:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe
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Size
40KB
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MD5
4f0670a305109f902b0f87808e5ad698
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SHA1
ede948facb88d6c265a7f6ba88e1c518046fe64d
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SHA256
1c733c814a7eab3aab3d9680c925e1ca9ae119d52ad9db97cee6ea56f7200b78
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SHA512
fb8ef1b80c071bb2ab0a83594e90d1fff7728bbce6e29697059972a6214e07b62356da840c2614d8ec04b209ec01be67f1441e28ea72515f94ccc216fe05fd94
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRY+b:m5nkFNMOtEvwDpjG8hhXy+b
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/3016-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000012287-11.dat CryptoLocker_rule2 behavioral1/memory/3016-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2052-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2052-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/3016-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2052-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2052-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/3016-0-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0009000000012287-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/3016-15-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2052-16-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2052-26-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2052 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 3016 2024-02-19_4f0670a305109f902b0f87808e5ad698_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 3016 wrote to memory of 2052 3016 2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe 28 PID 3016 wrote to memory of 2052 3016 2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe 28 PID 3016 wrote to memory of 2052 3016 2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe 28 PID 3016 wrote to memory of 2052 3016 2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_4f0670a305109f902b0f87808e5ad698_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2052
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD5dadabe2f126baf052e2f620c9ca3d828
SHA12996880e4f3393667c122d5c7519a222fd3fd7b9
SHA256c91e6df9763a7f7ea0b54aadb6f00f9230f0c885ca26d3cde248d6ec8f2565ae
SHA512cf44a3d9e328962f22ff9ef4269f3be039be37fd852f162d3ebfb9d52e6d1dd64cdda3819901263680ca391c01f0a50ef417db253ffba9b72783ce9bb1162336