Overview
overview
10Static
static
10Chay-Tai-macOSx.cmd
windows10-2004-x64
1Chay-Tai-macOSx.cmd
windows11-21h2-x64
1Tai-macOSx...ub.lnk
windows10-2004-x64
7Tai-macOSx...ub.lnk
windows11-21h2-x64
3Tai.macOSx.vbs
windows10-2004-x64
7Tai.macOSx.vbs
windows11-21h2-x64
3restore-ma...ub.ps1
windows10-2004-x64
8restore-ma...ub.ps1
windows11-21h2-x64
8Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/06/2026, 06:20
Static task
static1
Behavioral task
behavioral1
Sample
Chay-Tai-macOSx.cmd
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Chay-Tai-macOSx.cmd
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
Tai-macOSx-tu-GitHub.lnk
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
Tai-macOSx-tu-GitHub.lnk
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
Tai.macOSx.vbs
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
Tai.macOSx.vbs
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
restore-macOSx-from-github.ps1
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
restore-macOSx-from-github.ps1
Resource
win11-20260513-en
General
- Target Tai-macOSx-tu-GitHub.lnk
- Size 1KB
- Sample260602-g3rhlaez2w
- SHA256 43c396cbab10d5d81d0a94257bd39acfa1b3cc667554285df1f96488d001a1ca
- MD5 66f2d087db9e414102dab35e27c3ce50
- SHA1 0cbd4fa99ae181447ee518343cc35626ab14dc42
- SHA512 44eb5b3c0a24ae1c8629e460cab7c03d2dc6404bd4c0f955c3f09cf179c865b41f6e1f032a4ecd7135648f63c526ceb99aeafca8b7b3e6b742470f4629df463b
- TLSH T19221762026FB0304E7F35A39A8B1D220AA737855ED27EBCE0280150A4C2655ACC76B1B
- MD5 SHA1 SHA512 TLSH
Malware Config
Signatures
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation cmd.exe Key value queried \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation WScript.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{088e3905-0323-4b02-9826-5d99428e115f}\Instance\ cmd.exe Key created \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000_Classes\Local Settings cmd.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4328 wrote to memory of 1544 4328 cmd.exe 87 PID 1544 wrote to memory of 1668 1544 WScript.exe 88 PID 1668 wrote to memory of 1900 1668 cmd.exe 90
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Tai-macOSx-tu-GitHub.lnk1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4328 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Tai.macOSx.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1544 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Chay-Tai-macOSx.cmd" "3⤵
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\system32\where.exewhere powershell.exe4⤵PID:1900
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