Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 18:14

General

  • Target
    setup.exe
  • Size 1.7MB
  • Sample260809-wvrkystbmf
  • SHA256 579f75a7d5d69f257719a3343caad08bdf3d77635111250bdb7ce807584b8eb6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 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.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\is-B8O3D.tmp\is-B81H8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-B8O3D.tmp\is-B81H8.tmp" /SL4 $402C0 "C:\Users\Admin\AppData\Local\Temp\setup.exe" 1467863 52224
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3724

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        is-B81H8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-B8O3D.tmp\is-B81H8.tmp
        • Size 635KB
        • SHA256 b42cfccdbd244726bb2e43a6ae933965d6382bb6f8e4f1c4f9f393461f9070e1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1100-0-0x000000000040C000-0x000000000040D000-memory.dmp

        memory/1100-1-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/1100-14-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/3724-7-0x0000000000400000-0x00000000004CD000-memory.dmp

        memory/3724-8-0x0000000000400000-0x00000000004CD000-memory.dmp

        memory/3724-13-0x0000000000400000-0x00000000004CD000-memory.dmp