Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31-10-2024 08:20
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe
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Size
48KB
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MD5
feb6d42eca8e0bcfffaf55434221e49d
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SHA1
701f70bc21a59917efc9ed7dd5c03f7551d19373
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SHA256
8aacd66059e26f9d516ae1891e60ab30df1f4c854e196a70057d4c31228c672e
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SHA512
5273d3d5cfa3ece835d82baa431267f241cffde8e9abbec66050efe30d6d9cf3ba3b8e6b075d1a8cef88838b706e65df73b222b0a9dca924c22ffefba7300875
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SSDEEP
768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrPH:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwzz
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4872 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2076 wrote to memory of 4872 2076 2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe 84 PID 2076 wrote to memory of 4872 2076 2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe 84 PID 2076 wrote to memory of 4872 2076 2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-31_feb6d42eca8e0bcfffaf55434221e49d_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD5467167dc64a0937ebc1165cd41df4784
SHA1d13f42f00b2cf195e534e9f10b5f93deb77bee08
SHA2566c44154b81b97844c6804fdda6f807f0295675288eb51b305c7c51ab79d70f9b
SHA5128d03f4c2dfd2bc3ebbce914b3bf0c61893aba995fc996a5e50350eb8618a3e087231cebd8b0d4c890de32ac5d92aa3e153ed250afdfb04a36abcbd8c64b6d0e6