Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20/11/2024, 03:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe
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Size
32KB
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MD5
4e1746924c53eaebda7c94e12f341d0c
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SHA1
3d49ec91862500f11f03f769781639ed40d1094c
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SHA256
7aae46c25c74d4e8707bef2181a14c5faac4b2bae5eeeaedbd6d55ddb12537f7
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SHA512
55f1c8233bda6357353f3d65fbe4ee10f72c39c91582f3b304db57b706380f80731d535cb327578e52c093eb6d17993197f40e0298cb7f8a0a9349d5f6a88610
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjB9iNL3:X6QFElP6n+gJQMOtEvwDpjBG
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1132 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 2024-11-20_4e1746924c53eaebda7c94e12f341d0c_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 312 wrote to memory of 1132 312 2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe 86 PID 312 wrote to memory of 1132 312 2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe 86 PID 312 wrote to memory of 1132 312 2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_4e1746924c53eaebda7c94e12f341d0c_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:312 -
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:1132
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
32KB
MD5aea10877b2dd005fffa4596dcc6f8c4c
SHA1be68120497d87f0090cd49baa3d7ef88a9b3b1db
SHA25626192a8038982182c49cd1646f41044ad570e4c6ce133e1edce385556dc7c648
SHA512fa08f9107c0896415dda7601e3901b3268c8edadca14d472417afbda3e13290822f420b723cb5388e63a88f5284af5779193da795b82d3e73c76034b53970b69