Analysis
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max time kernel
148s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2024, 05:58
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe
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Size
71KB
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MD5
9f48f2bc9be2bc4625e6246739baaaa5
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SHA1
aa459208da17450b0c57bb90401506d1c527b1b8
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SHA256
d5aca94dba5eb185a202b48731d97d4179c77fcd16846111fd93f226b5c3570a
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SHA512
eaf6daa7507aa4e83212819a21ab9bc177dcbf5c027ce20f3eebec0c170fea13a694a9493c1150ea636f5b89bd54774d3cc1d404701846725bd7705f84c65b79
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx16:X6a+SOtEvwDpjBZYvQd26
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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation 2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3272 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2656 wrote to memory of 3272 2656 2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe 22 PID 2656 wrote to memory of 3272 2656 2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe 22 PID 2656 wrote to memory of 3272 2656 2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe 22
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3272
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