Analysis
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max time kernel
144s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
11/06/2024, 02:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe
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Size
50KB
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MD5
fc1b336f8ef460da34b774ab710935e1
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SHA1
977736ae4c23c7ad7c2f54f56e9ebd4695055cee
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SHA256
8688092cb3f0b430d9b8ef1c37ca4b501e8e527fbe371704f0cf8d2a0e66b31d
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SHA512
0d192550fc2775bc33da2b432c50b6ae645cb7097a1fc9c155c1e5a7afe87347765755e32e9a8f15501dd18f2a540403ee5241c6a71e8e91b8cb1bb660b4941e
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rva/yYsm06Mq+:xj+VGMOtEvwDpjy+viHs7pV
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001226b-11.dat CryptoLocker_rule2 behavioral1/memory/2972-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2056-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2972-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d00000001226b-11.dat CryptoLocker_set1 behavioral1/memory/2972-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2056-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2972-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d00000001226b-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2972-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2056-15-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2972-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2972 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2056 2024-06-11_fc1b336f8ef460da34b774ab710935e1_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 2056 wrote to memory of 2972 2056 2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe 28 PID 2056 wrote to memory of 2972 2056 2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_fc1b336f8ef460da34b774ab710935e1_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2972
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD53058ed1418b78790d07a84e8c3b618bb
SHA1cc4cbbddb463c90436b63b3444958a87d20c9cea
SHA2567d65a16451af71e91725c04e13a39f54df322d62488d555fa44fc31f59a34fe6
SHA5125d7776b5fddb0f0c61835c8e524602f6874353baf4c5b30366c195bd608876d3cd0d5d21ac2c6812e50ab772f8c342d1ec8fcfa155ba7bd5d360aaf3103657b4