Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/10/2026, 19:15

General

  • Target
    b11.msi
  • Size 35.6MB
  • Sample261009-xygetsty7p
  • SHA256 979c729256fbbc3a8862ce29cc33dee295a2ff2cce145123d3a87712863985ef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\b11.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:668
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 279E8B9C4B4900D9E32ECD5B09F57880 C
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5092
      • C:\Windows\SysWOW64\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Local\Temp\rad8B3DD.tmp.js" "C:\Users\Admin\AppData\Local\Temp\b11.msi"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2500

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rad8B3DD.tmp.js

        • Path C:\Users\Admin\AppData\Local\Temp\rad8B3DD.tmp.js
        • Size 531B
        • SHA256 3c9e0d59478cc3eedfee65079211fc5eb3642430580011ed23853a02b4b3922b
        • MD5 SHA1 SHA512 TLSH

        memory/5092-0-0x0000000074ADA000-0x0000000074ADB000-memory.dmp