Analysis

  • max time kernel
    120s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-10-2021 21:35

General

  • Target

    report-010.21.doc

  • Size

    34KB

  • MD5

    b5aeb8860efdadb611317b402c5c2041

  • SHA1

    529499499ecc872c36dc6883a8b26f9233cbe335

  • SHA256

    65268850ea8acf0d95948bee63f12e251526355fb456ba2432a82523bf11c654

  • SHA512

    0cc703ac915d52670c2eab3f19320ff0550cc38a41cb104793944c9d7ca4aa6df453f50deb7406dda00c7af431796ecfc6fb807f30d90cc931aa6f7b8627bf40

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 8 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\report-010.21.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:1048
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\kingSeaCaroline.hta"
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:1640
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1804

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\users\public\kingSeaCaroline.hta
      MD5

      fc60bfbcfb72c73cf4380e3d69f8ff30

      SHA1

      ec4c91db6a6459c765e90db04294094f264d28c3

      SHA256

      f4c0fdcc5b0a4f27af58e52571b63b121d09ae37f5d9772d68c2912f6c2ae58b

      SHA512

      f21c3e33042434d1bd0a4ff74210a280f5f30b8c36f0b5623f1659e8f0ef7a5c79a643864b1e6032fb69485a8c7dd10d983640784d678b8d04688d4a315f675a

    • memory/1048-54-0x0000000072E11000-0x0000000072E14000-memory.dmp
      Filesize

      12KB

    • memory/1048-55-0x0000000070891000-0x0000000070893000-memory.dmp
      Filesize

      8KB

    • memory/1048-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1048-57-0x0000000075651000-0x0000000075653000-memory.dmp
      Filesize

      8KB

    • memory/1640-58-0x0000000000000000-mapping.dmp
    • memory/1804-60-0x0000000000000000-mapping.dmp
    • memory/1804-61-0x000007FEFC271000-0x000007FEFC273000-memory.dmp
      Filesize

      8KB