Analysis

  • max time kernel
    155s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2023, 08:27

General

  • Target
    df247bbfaf91dbe0da4d79a04cfb5ca3.exe
  • Size 426KB
  • Sample231022-kcemwsgd49
  • SHA256 354bb2d5a03e3c1d041730e3478e80ab5a264fd852e146e880834a346fc63579
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • sy22

Decoy
  • vinteligencia.com

  • displayfridges.fun

  • completetip.com

  • giallozafferrano.com

  • jizihao1.com

  • mysticheightstrail.com

  • fourseasonslb.com

  • kjnala.shop

  • mosiacwall.com

  • vandistreet.com

  • gracefullytouchedartistry.com

  • hbiwhwr.shop

  • mfmz.net

  • hrmbrillianz.com

  • funwarsztat.com

  • polewithcandy.com

  • ourrajasthan.com

  • wilhouettteamerica.com

  • johnnystintshop.com

  • asgnelwin.com

Signatures

  • Formbook

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

  • Formbook payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Users\Admin\AppData\Local\Temp\df247bbfaf91dbe0da4d79a04cfb5ca3.exe
      "C:\Users\Admin\AppData\Local\Temp\df247bbfaf91dbe0da4d79a04cfb5ca3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe
        "C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4420
        • C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe
          "C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:4780
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe"
        3⤵
          PID:2732

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          iomgmdsgtbq.p

          • Path C:\Users\Admin\AppData\Local\Temp\iomgmdsgtbq.p
          • Size 205KB
          • SHA256 ee52d5afe32c612681d16c9bfee4cdb923ee5e54b84196b7b5ecc0aa4ad1df76
          • MD5 SHA1 SHA512 SSDEEP

          ohtfjmxqk.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe
          • Size 361KB
          • SHA256 c54c9db30df0d4fc34dcb8fece51fe3089d38283665cdd5af2c4846fa26f8e26
          • MD5 SHA1 SHA512 SSDEEP

          ohtfjmxqk.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe
          • Size 361KB
          • SHA256 c54c9db30df0d4fc34dcb8fece51fe3089d38283665cdd5af2c4846fa26f8e26
          • MD5 SHA1 SHA512 SSDEEP

          ohtfjmxqk.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ohtfjmxqk.exe
          • Size 361KB
          • SHA256 c54c9db30df0d4fc34dcb8fece51fe3089d38283665cdd5af2c4846fa26f8e26
          • MD5 SHA1 SHA512 SSDEEP

          memory/2464-28-0x0000000001120000-0x00000000011B3000-memory.dmp

          memory/2464-25-0x0000000000C00000-0x0000000000C2F000-memory.dmp

          memory/2464-24-0x0000000001340000-0x000000000168A000-memory.dmp

          memory/2464-23-0x0000000000C00000-0x0000000000C2F000-memory.dmp

          memory/2464-20-0x0000000000610000-0x0000000000617000-memory.dmp

          memory/2464-22-0x0000000000610000-0x0000000000617000-memory.dmp

          memory/3272-17-0x0000000008F60000-0x0000000009079000-memory.dmp

          memory/3272-26-0x0000000008F60000-0x0000000009079000-memory.dmp

          memory/3272-32-0x0000000009080000-0x0000000009192000-memory.dmp

          memory/3272-18-0x0000000008370000-0x00000000084E6000-memory.dmp

          memory/3272-13-0x0000000008370000-0x00000000084E6000-memory.dmp

          memory/3272-30-0x0000000009080000-0x0000000009192000-memory.dmp

          memory/3272-29-0x0000000009080000-0x0000000009192000-memory.dmp

          memory/4420-5-0x0000000000590000-0x0000000000592000-memory.dmp

          memory/4780-7-0x0000000000400000-0x000000000042F000-memory.dmp

          memory/4780-9-0x00000000009F0000-0x0000000000D3A000-memory.dmp

          memory/4780-16-0x0000000002800000-0x0000000002814000-memory.dmp

          memory/4780-11-0x0000000000400000-0x000000000042F000-memory.dmp

          memory/4780-12-0x00000000009D0000-0x00000000009E4000-memory.dmp

          memory/4780-15-0x0000000000400000-0x000000000042F000-memory.dmp