Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250502-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/08/2025, 14:58

General

  • Target
    fd4fa972a80b38a4a561bc647bf3720248f81eb85fe719f51fe8dc3965e7f330.exe
  • Size 1.1MB
  • Sample250812-scd1cssvbz
  • SHA256 fd4fa972a80b38a4a561bc647bf3720248f81eb85fe719f51fe8dc3965e7f330
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook family
  • Formbook payload 4 IoCs
  • Suspicious use of SetThreadContext 5 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.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\fd4fa972a80b38a4a561bc647bf3720248f81eb85fe719f51fe8dc3965e7f330.exe
      "C:\Users\Admin\AppData\Local\Temp\fd4fa972a80b38a4a561bc647bf3720248f81eb85fe719f51fe8dc3965e7f330.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\fd4fa972a80b38a4a561bc647bf3720248f81eb85fe719f51fe8dc3965e7f330.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:5540
    • C:\Windows\SysWOW64\netbtugc.exe
      "C:\Windows\SysWOW64\netbtugc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4668
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:2664

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          aut89E2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\aut89E2.tmp
          • Size 264KB
          • SHA256 fa90a5cb836a6130117ed7c2bbfa28ae9b259b647733a80512d55d4fae8157bf
          • MD5 SHA1 SHA512 SSDEEP

          memory/2664-41-0x000002B22EC10000-0x000002B22ECF8000-memory.dmp

          memory/2724-14-0x0000000000F20000-0x0000000001320000-memory.dmp

          memory/3544-21-0x000000000D4B0000-0x000000000F412000-memory.dmp

          memory/3544-35-0x0000000002F90000-0x000000000303C000-memory.dmp

          memory/3544-32-0x0000000002F90000-0x000000000303C000-memory.dmp

          memory/3544-31-0x0000000002F90000-0x000000000303C000-memory.dmp

          memory/3544-28-0x000000000D4B0000-0x000000000F412000-memory.dmp

          memory/4668-23-0x0000000000D80000-0x0000000000DBF000-memory.dmp

          memory/4668-29-0x0000000001550000-0x00000000015F0000-memory.dmp

          memory/4668-33-0x0000000001550000-0x00000000015F0000-memory.dmp

          memory/4668-30-0x0000000000D80000-0x0000000000DBF000-memory.dmp

          memory/4668-22-0x0000000000D80000-0x0000000000DBF000-memory.dmp

          memory/4668-26-0x0000000001790000-0x0000000001ADA000-memory.dmp

          memory/4668-27-0x0000000000D80000-0x0000000000DBF000-memory.dmp

          memory/5540-24-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/5540-20-0x0000000001310000-0x0000000001331000-memory.dmp

          memory/5540-18-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/5540-25-0x0000000001310000-0x0000000001331000-memory.dmp

          memory/5540-17-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/5540-19-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/5540-16-0x0000000001400000-0x000000000174A000-memory.dmp

          memory/5540-15-0x0000000000400000-0x0000000000442000-memory.dmp