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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
28/03/2024, 06:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe
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Size
64KB
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MD5
5cf5264dca4819ac217d3a0b6ae1a7a9
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SHA1
3be1b8da0adcf6654fa84d6fc6b34fe0ead35371
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SHA256
107918f96ccf664f0a1e2418bfe4cfb5054c140aa01f708db50a542d75f2b3a7
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SHA512
db2bf86a2a319c0104794115a6868b0e5dc551f5cbd9fae77c2b2ecd85a9e4df7c325a0825fce6e5568d8f7822ec5536e46610066dc247c80fe1838379e315ab
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEMoq:6j+1NMOtEvwDpjr8ox8UDEhq
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2860-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b00000001224c-11.dat CryptoLocker_rule2 behavioral1/memory/2860-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2492-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2860-13-0x0000000001EE0000-0x0000000001EEF000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2492-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2860-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b00000001224c-11.dat CryptoLocker_set1 behavioral1/memory/2860-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2492-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2860-13-0x0000000001EE0000-0x0000000001EEF000-memory.dmp CryptoLocker_set1 behavioral1/memory/2492-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2860-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b00000001224c-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2860-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2492-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2860-13-0x0000000001EE0000-0x0000000001EEF000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2492-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2492 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2860 2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_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 2860 wrote to memory of 2492 2860 2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe 28 PID 2860 wrote to memory of 2492 2860 2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe 28 PID 2860 wrote to memory of 2492 2860 2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe 28 PID 2860 wrote to memory of 2492 2860 2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-28_5cf5264dca4819ac217d3a0b6ae1a7a9_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2492
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD5f792ca41b0ff72dc54764d3c6f84ae0e
SHA11245ad268451e190a3719fcc763dac8c288c0cd6
SHA2564025d0c162691bbf3589c291c7d0dbc9dcfa1b7307c4ed744793238590594061
SHA512ef94f78dc0fdbc314e9b112cfb6ed3fd2ab9d74f63bd7d148c047d54c2944e1aa7d5120590ed673de8183e638eef47bca1ec33ffb7efe2a4c25764a55036c920