Analysis

  • max time kernel
    102s
  • max time network
    86s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 07:07

General

  • Target

    120205 Letter-response A3 2-2.doc

  • Size

    44KB

  • MD5

    376fa3684461224fbf1d998672ac4921

  • SHA1

    0a7d654ef39c5531851d11be3ecfaacd477fa602

  • SHA256

    108bdbc031bc05bf907f3c5387bf16052ed037220597107fe0a3e3e40070de5c

  • SHA512

    c9617acdf205f7ecbdb2b214df3e098fb488fd416eed1aec87017d1d33a9409f111d3951cdbffdcad5432f5367b3bd96ba668b7ea59def955b65807229b80a0c

  • SSDEEP

    384:G/QC44EJRgVGPbrNChLS3ELymDUJotDzqYX0jPtEgPeoJ0WpzTO+E7pX0jTme6GC:8oPvNChLS3yynIBQWoeWpftE1qx

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • 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 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\120205 Letter-response A3 2-2.doc"
    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:860
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1960

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/860-54-0x0000000072171000-0x0000000072174000-memory.dmp
      Filesize

      12KB

    • memory/860-55-0x000000006FBF1000-0x000000006FBF3000-memory.dmp
      Filesize

      8KB

    • memory/860-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/860-57-0x0000000075071000-0x0000000075073000-memory.dmp
      Filesize

      8KB

    • memory/860-58-0x0000000070BDD000-0x0000000070BE8000-memory.dmp
      Filesize

      44KB

    • memory/860-61-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/860-62-0x0000000070BDD000-0x0000000070BE8000-memory.dmp
      Filesize

      44KB

    • memory/1960-59-0x0000000000000000-mapping.dmp
    • memory/1960-60-0x000007FEFB821000-0x000007FEFB823000-memory.dmp
      Filesize

      8KB