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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
12/09/2024, 05:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe
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Size
47KB
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MD5
2d5f56bf8647ee0e3ad721ce81a0bf01
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SHA1
a1110d9ba46dab8454d19bde51cddb38586d170a
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SHA256
2500ed4c3e31e44c1e4c9650dccce5aae555edfbc1f6d89394c534efdf3cba8f
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SHA512
d6474979ae274e82e8a6b46ca7e82a2b369b3755bd84f0e6b954ac19ea1b0937eb96379c19e1d937e885f8fed332e464a5bbce121da2a7df709d34bacd8654e6
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SSDEEP
768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrF:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwzp
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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation 2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1472 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 2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_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 4912 wrote to memory of 1472 4912 2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe 83 PID 4912 wrote to memory of 1472 4912 2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe 83 PID 4912 wrote to memory of 1472 4912 2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-12_2d5f56bf8647ee0e3ad721ce81a0bf01_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4912 -
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:1472
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD556a15d6175e7fc6fc17941063980d3a6
SHA1a98aa042da0429a757e61d47b223502a6837fb8f
SHA2569dfb9ae6680e2122431a8d8c885877f3592ad7cc4d847ce83b4b910d2c01c1ca
SHA5120653c2badf7d506efe172b9c5335f367bf862d6a310cb5126d2ce46ee0463386ca1996f85d588a10fd5536e79de353cdeb6123d5d7865ce5056487e7da6ad20a