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Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
06/06/2024, 20:05
Behavioral task
behavioral1
Sample
2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
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Size
75KB
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MD5
bc0e5e60a5c00404f13de8803b0afdfe
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SHA1
2b06af060b32d99d66ebf437ca4b9fde6e82a060
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SHA256
74c84fd48eb2753f57b18f4fe6187cc14ca22e64ce0b93e26cac6c4e8961f9be
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SHA512
b057030dd61230854a99d63e95b1cc8eefe79f7d8dfaf68322cd39eeb79888be1cb401bd2883afecfe5b9318607907cbbfadd1e6ff1a50b7a842bc4a7f121876
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9Vq:C4Q2c94OtEvwDpj4H8zV
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000014e3d-11.dat CryptoLocker_rule2 behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b000000014e3d-11.dat UPX behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3004 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1712 2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe -
resource yara_rule behavioral1/memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b000000014e3d-11.dat upx behavioral1/memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 1712 wrote to memory of 3004 1712 2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe 28 PID 1712 wrote to memory of 3004 1712 2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe 28 PID 1712 wrote to memory of 3004 1712 2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe 28 PID 1712 wrote to memory of 3004 1712 2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3004
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD545a2247700efb44573e8008752baf19c
SHA1600047775734039ba32556e435db08df779c3295
SHA256cd176511933a9cdb1dcbe430f07f91e63dbfe5767e275948715a6ef26073a1d5
SHA512744e44d85e4af3044d6ccec9627f69c02c1391f023360891e1097a24765d5d96b7d00f889ce6b32754ac187981702741d161543c60d44888ca3a933d6b9b83f0