Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/06/2026, 23:51

General

  • Target
    Uninstall.exe
  • Size 102KB
  • Sample260621-3wljnagy21
  • SHA256 fd4e1a0cfdfcf1fa49f2c6a5d1ee6514bae63e2bd4a8fc7268ab139f3f6162e8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:5920

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        InstallOptions.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsvD1A5.tmp\InstallOptions.dll
        • Size 14KB
        • SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsvD1A5.tmp\ioSpecial.ini
        • Size 652B
        • SHA256 e454af0bb29cd9e95d30ec0c115c23fab15130b72ed4fb18f752006032b99b1a
        • MD5 SHA1 SHA512 TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsvD1A5.tmp\ioSpecial.ini
        • Size 574B
        • SHA256 5910c0746bfea83523db899f51d7128b0a01583f8f4d94b77ccb92c386e50e7e
        • MD5 SHA1 SHA512 TLSH

        Au_.exe

        • Path C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
        • Size 102KB
        • SHA256 fd4e1a0cfdfcf1fa49f2c6a5d1ee6514bae63e2bd4a8fc7268ab139f3f6162e8
        • MD5 SHA1 SHA512 SSDEEP TLSH