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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/05/2024, 14:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe
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Size
61KB
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MD5
f3a8a48bf0bc62225622ef1f3963986f
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SHA1
52e03fa3abc34c815f5c8062eb3b742d746472ca
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SHA256
da38b5551d4dd8b0d1acc749ee97a5c4a680fe21a449cb616793d81c0470aad7
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SHA512
a0c1032750e961fa6fddbc20c16ff1a857384cc1cdb042fda061730faef2f2692b0813b08869189b8dc15924276ebd16d7a771356b466cb1a6b96789bfd90ac5
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SSDEEP
768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9+:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWz
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1732-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d000000012324-11.dat CryptoLocker_rule2 behavioral1/memory/1732-13-0x0000000002880000-0x000000000288B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1732-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2588-26-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1732-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d000000012324-11.dat CryptoLocker_set1 behavioral1/memory/1732-13-0x0000000002880000-0x000000000288B000-memory.dmp CryptoLocker_set1 behavioral1/memory/1732-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2588-26-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2588 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1732 2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_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 1732 wrote to memory of 2588 1732 2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe 28 PID 1732 wrote to memory of 2588 1732 2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe 28 PID 1732 wrote to memory of 2588 1732 2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe 28 PID 1732 wrote to memory of 2588 1732 2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-10_f3a8a48bf0bc62225622ef1f3963986f_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2588
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD52f2b50997a7dc68face7efb106357417
SHA1f6b56cf6e3916b9fc2a50b786c23257308646cee
SHA25671f130820024ed7993d511c46368f5011e6c887f546c9c8690064f64216b8c45
SHA512ed0ac7c9aacc1cc5cc03377a06b54801ede1b00ed103d938c5128c72117c64c0d72058d1665aa19e7d0dbe8d2fd645727113fc06e5c410c2e4c8a16e11d9de9b