Analysis
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max time kernel
148s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21/11/2024, 06:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe
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Size
37KB
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MD5
58f9815294b9e6a17615d3042da10384
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SHA1
bbcdf112cfe9e604631aa40af303433d2cffc63c
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SHA256
60f772af4e79db9963554f533f1e1dc9b6387189dc1714b6693fbeaae0c9f32b
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SHA512
c9acdd754923061c25ce4a244df28b5cc7d3b6e61203fad6391b2a0cf657576d570a40120f880dafe22265165f5b18c43d27268510d442943f50179fefd36503
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQLI3J7f5/H:V6QFElP6n+gMQMOtEvwDpjeJQyTv
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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4028 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 2024-11-21_58f9815294b9e6a17615d3042da10384_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 804 wrote to memory of 4028 804 2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe 83 PID 804 wrote to memory of 4028 804 2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe 83 PID 804 wrote to memory of 4028 804 2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-21_58f9815294b9e6a17615d3042da10384_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:804 -
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:4028
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD5c268e94a70e58858853567c8c50b8cea
SHA1d059deeb668c8526b76c10b832caf38c7a355969
SHA2564986dde6f249eafbd8b2875c9f2878477505e6f7513f6d1dab37db6102ba4b80
SHA51244b6d1787fe0f1f9d570f79ffb9c6977f465869276e67dbc26d60c8f0370a566a326e039bfe0137f28160f02764de039eb395c37078a7e1c4da86fcc92ce4973