Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/07/2023, 04:12

General

  • Target
    99b387d1de76dcfbb4cb6c33eb919a49.exe
  • Size 388KB
  • Sample230720-eshftscg23
  • SHA256 4aea5f6079cedf9c5205a0939e9c05119d5df7d73dde0f3a19ab2fd09a6443da
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • ms14

Decoy
  • adjoinstaff.online

  • kmmdznky.cfd

  • keyviewgroup.com

  • kidomarketing.com

  • jroxtqpq.cfd

  • jdevmx.com

  • genqaagz.cfd

  • 1cdpwp.cfd

  • francegoldvip.com

  • 2qy218.xyz

  • peterscanner.com

  • trullys.com

  • aniwatch.top

  • windyhillcnc.com

  • pokazhu.com

  • r74jsy.cfd

  • paulgadgets.com

  • lindanewtee.com

  • lasik-de-de-8808230.zone

  • critone.site

Signatures

  • Formbook

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

  • Formbook payload 1 IoCs
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99b387d1de76dcfbb4cb6c33eb919a49.exe
    "C:\Users\Admin\AppData\Local\Temp\99b387d1de76dcfbb4cb6c33eb919a49.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\AppData\Local\Temp\99b387d1de76dcfbb4cb6c33eb919a49.exe
      "C:\Users\Admin\AppData\Local\Temp\99b387d1de76dcfbb4cb6c33eb919a49.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:3716

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsxB3C1.tmp\System.dll
        • Size 11KB
        • SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
        • MD5 SHA1 SHA512 SSDEEP

        memory/2648-140-0x0000000077081000-0x00000000771A1000-memory.dmp

        memory/2648-141-0x0000000077081000-0x00000000771A1000-memory.dmp

        memory/2648-142-0x0000000073EE0000-0x0000000073EE6000-memory.dmp

        memory/3716-143-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/3716-144-0x0000000077108000-0x0000000077109000-memory.dmp

        memory/3716-145-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/3716-146-0x0000000001660000-0x000000000749B000-memory.dmp

        memory/3716-147-0x0000000037910000-0x0000000037C5A000-memory.dmp

        memory/3716-148-0x0000000001660000-0x000000000749B000-memory.dmp

        memory/3716-150-0x0000000077081000-0x00000000771A1000-memory.dmp