Analysis

  • max time kernel
    133s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    08/01/2024, 17:12

General

  • Target
    RFQ__Quotation Pvq-100-23-258.rtf
  • Size 99KB
  • Sample240108-vqtzvaebdn
  • SHA256 2a42c1c4a1cd6140d67029bdfbda9e7de979c2326f14b66ee580b014ae3dee5f
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\RFQ__Quotation Pvq-100-23-258.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:836
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Users\Admin\AppData\Roaming\ugopounds22309.exe
        "C:\Users\Admin\AppData\Roaming\ugopounds22309.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2872
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 660
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:1048

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          Normal.dotm

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
          • Size 20KB
          • SHA256 189acd515394716e75f559ca716c22cc7b5a425a26b5fb37349d04a334ba08a0
          • MD5 SHA1 SHA512 SSDEEP

          ugopounds22309.exe

          • Path \Users\Admin\AppData\Roaming\ugopounds22309.exe
          • Size 675KB
          • SHA256 b19de61d027c066c42afa7cfa6b81c26792d310d07bfb38481deb842796de3dc
          • MD5 SHA1 SHA512 SSDEEP

          memory/2648-24-0x00000000718BD000-0x00000000718C8000-memory.dmp

          memory/2648-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/2648-2-0x00000000718BD000-0x00000000718C8000-memory.dmp

          memory/2648-53-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/2648-0-0x000000002F4A1000-0x000000002F4A2000-memory.dmp

          memory/2872-21-0x0000000004E40000-0x0000000004E80000-memory.dmp

          memory/2872-22-0x0000000000A20000-0x0000000000A3A000-memory.dmp

          memory/2872-25-0x000000006BA30000-0x000000006C11E000-memory.dmp

          memory/2872-26-0x0000000000850000-0x000000000085E000-memory.dmp

          memory/2872-27-0x0000000004E40000-0x0000000004E80000-memory.dmp

          memory/2872-16-0x000000006BA30000-0x000000006C11E000-memory.dmp

          memory/2872-15-0x0000000001090000-0x000000000113E000-memory.dmp