Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
26/07/2024, 08:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe
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Size
79KB
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MD5
26616452340b1e82c3dff57f4c593032
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SHA1
f1e37f68bd07e024c94d0988afe359b24be442b0
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SHA256
e6dd2890e885800d668807ec87f3c2f2628b36ecda56b245bd1b02ac2b84a958
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SHA512
4844516e798d7f1e2859c85d19eae763e675f24779420f2d1c25a409bf78f199a22659ea267b472df02956fe75271f9607e59de6511b99fb754e50f30974304f
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktNP:X6a+SOtEvwDpjBZYvQd2I
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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation 2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5072 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 2024-07-26_26616452340b1e82c3dff57f4c593032_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 744 wrote to memory of 5072 744 2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe 84 PID 744 wrote to memory of 5072 744 2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe 84 PID 744 wrote to memory of 5072 744 2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-26_26616452340b1e82c3dff57f4c593032_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:744 -
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:5072
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
79KB
MD5aa471f060daa0545ac9143884da449ca
SHA1b1177401556e91ac75d04621e0cb1ea0b64b067e
SHA2560b715adb314cdcef68de42265b8dd3a9562ca2ab82b0e11299958fd3b037a4f4
SHA51248f84acb2c055ad5056a0a8e31b364975757ebb00afa1aac3663d6c7b74c6dc79f733adf8330b2ecc7117a097ff1574191e43f90014a58083fbf4110b4e0529a