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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
24/04/2024, 04:44
General
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Target
2024-04-24_d3ff08fd192e342ee350bfd8d8da5270_cryptolocker.exe
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Size
38KB
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MD5
d3ff08fd192e342ee350bfd8d8da5270
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SHA1
3a1dd5019eb77d4bbd94d7657bdaead74ae4e56b
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SHA256
a8af1ab2c8b1f438ccbfff89f08860f4f705da36cc247fb9eb1b5bccf4c1c2fc
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SHA512
b2b5b8c5f5e6d8086e0b28ffe54439dfb0cfac89dead72c82a83a3e42da020c0483bb64c26a596120972a0ee1eeab95fa19605484987039a1ab99f29be30cff4
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY91:qDdFJy3QMOtEvwDpjjWMl7T+
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-24_d3ff08fd192e342ee350bfd8d8da5270_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-24_d3ff08fd192e342ee350bfd8d8da5270_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
38KB
MD5d43d526dc5e173e5d68cf47899a2bcf4
SHA16b75c9482214c90a708b3ccb43c52c48156ff18d
SHA25604aa43222e0cf0cff720810ea103f16e5e9a800021da506729ff347a8c418fac
SHA51266ae15859bbd248a2ad85c0a4aed8b6ab619f3ce14e9e59369f138845bc0d0a62d200ba3778d40bed38e288a07528abe165a951b912cba751c0369c98b658b45
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Filesize
64KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
24KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB