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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21/09/2024, 18:01
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe
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Size
47KB
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MD5
1e4d89c20c1cf5134e175234dab49ba8
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SHA1
fba02cfb2bb4c424a19c8714f51cd7d5c5da745d
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SHA256
8c0b1cba1dedfe420ada13ec9fcf43430b91d07936c9bbeeb7ea28def19802e0
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SHA512
fd53fcc37b0eed857a8ad1f8aae23d62f1474fcf810ad935a85b0ea0ec9de1a425af01395b514ca830fa6591bd03fa7395f32c2c6019e56c0ccc5dfa85d72859
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SSDEEP
768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrZ:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwz1
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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation 2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2904 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 2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_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 4220 wrote to memory of 2904 4220 2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe 82 PID 4220 wrote to memory of 2904 4220 2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe 82 PID 4220 wrote to memory of 2904 4220 2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-21_1e4d89c20c1cf5134e175234dab49ba8_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4220 -
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:2904
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD55e2f4fd53333e1b1d9db22e29480665f
SHA1da1ac9464dd29078e3803d55393ab59b8dc660e0
SHA256dd4642f6ec974b8e7a7516513e95ec02955476419eb2ea37a1aebfb31105912f
SHA512dd2cb8b834d2827424320901aba8e30c7428ecc53a583ab0b69c09beb2c85697334d75042fdc5ed0ddc5ee8b92e0dfaa52b07c08c242f1f48fe607d0d27bacf7