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Analysis
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max time kernel
144s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
27/04/2024, 05:15
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe
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Size
40KB
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MD5
d3e02d1881a966d04dd6b60268a1e65e
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SHA1
9379bdd54126ca53dd94324f215fd2f216a7b28f
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SHA256
9338ab4480e3ce1568595bc76643a6380b9224bd5b06e72c145092059bf29103
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SHA512
64d8a25bbee2b437a4baa5885d7c1a1d391fc8d03b14a67c4ad5ff91c68292a15960f307f9a6b9a8a453747867c94e1677f87dd6c3209270e5d0e7eab715ca0f
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYsZZh:i5nkFGMOtEvwDpjR+viHsx
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2036-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012301-11.dat CryptoLocker_rule2 behavioral1/memory/2036-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1484-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1484-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/2036-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1484-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2036-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b000000012301-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2036-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1484-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1484-28-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1484 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2036 2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_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 2036 wrote to memory of 1484 2036 2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe 28 PID 2036 wrote to memory of 1484 2036 2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe 28 PID 2036 wrote to memory of 1484 2036 2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe 28 PID 2036 wrote to memory of 1484 2036 2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-27_d3e02d1881a966d04dd6b60268a1e65e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1484
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5fd97c1cfcf816489ed3b7bf88f0e1252
SHA116da27a9c6f016780c888159c6d290c53534a390
SHA256882cb3b84013511ad056b73d5f2761d0b887f78b6167c73667c8bb7f051a0dd4
SHA512fb0e29957465b799a90aca31c12fa57e5a965d9f8a5cf174ec394f84231a2b19dd37ae99b7e4e01fbd19455839be536fabbd149b50f995299960c33ee6c18e4c