Analysis

  • max time kernel
    294s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2022 15:27

General

  • Target

    Inq_Specs.docx

  • Size

    10KB

  • MD5

    587b90f5cf6b0776db453f4404022a98

  • SHA1

    7a28e496d7fe980a9d91892a007edde59c2d802c

  • SHA256

    737668f5569e69d5570e2dc3b5a93098a16c5e72cb02d95915603bcc9ce829d7

  • SHA512

    cf8f5a4df6435c30386e979443f6e29976ec1690cd5fcfae0573e68980fe8652eb668feb6e4c3f115aa038627680856bf1f2ac6e0ec487b98aef0dde311e9136

  • SSDEEP

    192:ScIMmtP8ar5G/bfIdTOGnamWBX8ex6y30Wfx:SPXt4ATOGnosMFZ

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Abuses OpenXML format to download file from external location 2 IoCs
  • Drops file in Windows directory 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\Inq_Specs.docx"
    1⤵
    • Abuses OpenXML format to download file from external location
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1084
    • 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
      • Launches Equation Editor
      PID:1660

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Exploitation for Client Execution

    1
    T1203

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1084-60-0x0000000000000000-mapping.dmp
    • memory/1084-61-0x000007FEFB831000-0x000007FEFB833000-memory.dmp
      Filesize

      8KB

    • memory/2032-54-0x00000000723D1000-0x00000000723D4000-memory.dmp
      Filesize

      12KB

    • memory/2032-55-0x000000006FE51000-0x000000006FE53000-memory.dmp
      Filesize

      8KB

    • memory/2032-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2032-57-0x0000000076031000-0x0000000076033000-memory.dmp
      Filesize

      8KB

    • memory/2032-58-0x0000000070E3D000-0x0000000070E48000-memory.dmp
      Filesize

      44KB

    • memory/2032-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2032-63-0x0000000070E3D000-0x0000000070E48000-memory.dmp
      Filesize

      44KB