Analysis

  • max time kernel
    100s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2023 17:29

General

  • Target

    439E39925309FB7A963870356DABFBCE0478EC334D1BCD597AD9BEEEF31BB0A9.docx

  • Size

    10KB

  • MD5

    1256f6083a62257ba411c719b563c6d4

  • SHA1

    e90827ec9f3889975ea49fa3e32a15a12fc4f586

  • SHA256

    439e39925309fb7a963870356dabfbce0478ec334d1bcd597ad9beeef31bb0a9

  • SHA512

    65147689f7afda87f880105d8e2603ac322998a6adc507c6cc1a92dc254a8962a4fe21917178cb8574dbce23c0d704c1b4ab3b29c6ffb3873344af9f446fe11e

  • SSDEEP

    192:ScIMmtP5hG/b7XN+eOWOO+5+5F7Jar/YEChI3DZR:SPXRE7XtOZ7wtar/YECOf

Score
7/10

Malware Config

Signatures

  • 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
  • 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\439E39925309FB7A963870356DABFBCE0478EC334D1BCD597AD9BEEEF31BB0A9.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:880
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1000

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/880-54-0x0000000072CA1000-0x0000000072CA4000-memory.dmp
      Filesize

      12KB

    • memory/880-55-0x0000000070721000-0x0000000070723000-memory.dmp
      Filesize

      8KB

    • memory/880-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/880-57-0x0000000075831000-0x0000000075833000-memory.dmp
      Filesize

      8KB

    • memory/880-58-0x000000007170D000-0x0000000071718000-memory.dmp
      Filesize

      44KB

    • memory/880-61-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/880-62-0x000000007170D000-0x0000000071718000-memory.dmp
      Filesize

      44KB

    • memory/1000-59-0x0000000000000000-mapping.dmp
    • memory/1000-60-0x000007FEFC1B1000-0x000007FEFC1B3000-memory.dmp
      Filesize

      8KB