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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/05/2024, 07:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe
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Size
95KB
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MD5
1d353703106406b9e64ed7b5dca2d95f
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SHA1
4643f1de61b65a8b86063182c29f61bad99233b2
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SHA256
e57d7d235d04c418345ff7cbb18b6dfc2cbaa4402d0119dbcd65e60e6cdaca7c
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SHA512
564be489e0a67a29cbfd900283cdfc40234d9e386fee3f777b5ce6ca0d6c0efa278957097eef1b98e4565df1eb2e62269ebcfda267ebca90690f0907c514146c
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYt:xj+VGMOtEvwDpjubwQEIiVmkst
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2156-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d000000015ccd-11.dat CryptoLocker_rule2 behavioral1/memory/2508-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2156-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2508-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2156-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d000000015ccd-11.dat CryptoLocker_set1 behavioral1/memory/2508-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2156-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2508-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2156-1-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d000000015ccd-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2508-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2156-14-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2508-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2508 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2156 2024-05-10_1d353703106406b9e64ed7b5dca2d95f_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 2156 wrote to memory of 2508 2156 2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe 28 PID 2156 wrote to memory of 2508 2156 2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe 28 PID 2156 wrote to memory of 2508 2156 2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe 28 PID 2156 wrote to memory of 2508 2156 2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-10_1d353703106406b9e64ed7b5dca2d95f_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2508
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
95KB
MD5cde4bf7fd947a9ceaf8b8d5e7f4324e8
SHA1ed72058c833b06095e93de49c6ecc92261bc1b38
SHA256887c0706797948154425b3d5f2a80866893274d0df9087bca3670b4b16caf160
SHA512fc4b32a9d7cd325c4b4654105b2c87ddd0f46eeab9d05c25138f1f68fb59336347763b3da4d780f5b62429b2461d933418cebede3091454cb6983068ca637baf