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Analysis
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max time kernel
56s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
11/01/2024, 03:32
Static task
static1
Behavioral task
behavioral1
Sample
526b73ec2f62a607bc9bac7c3da6ce33.js
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
526b73ec2f62a607bc9bac7c3da6ce33.js
Resource
win10v2004-20231222-en
General
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Target
526b73ec2f62a607bc9bac7c3da6ce33.js
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Size
11KB
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MD5
526b73ec2f62a607bc9bac7c3da6ce33
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SHA1
dd80c19d4d602294ad2191dd44fb818f501157ed
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SHA256
75b0226eeb4fe55f6dbd96a3b74f60b8c22a3fbba82641bf694df05c3b49f31b
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SHA512
126263bd32ded7472ca16290759de63869bc2f31e0c94234336acd733226851495ac3c498c9e24ad89a793e27fb2b96fb7e67db114828ffe9730171f7e31dccf
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SSDEEP
192:eVfpihB+WGxkPS10xkCnn+/PVUxjxhUFhe2nn/VCvVS1j9B0EyTxTGmgqhK:eVQhYWGaoxCnn+/PVUWTj6VyT0ZxPgyK
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 4 5096 wscript.exe 55 5096 wscript.exe -
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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\526b73ec2f62a607bc9bac7c3da6ce33.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\526b73ec2f62a607bc9bac7c3da6ce33.js wscript.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\O3FNWNFPWY = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\526b73ec2f62a607bc9bac7c3da6ce33.js\"" wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3792 schtasks.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5096 wrote to memory of 3792 5096 wscript.exe 50 PID 5096 wrote to memory of 3792 5096 wscript.exe 50 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\526b73ec2f62a607bc9bac7c3da6ce33.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5096 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\526b73ec2f62a607bc9bac7c3da6ce33.js2⤵
- Creates scheduled task(s)
PID:3792
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