Analysis

  • max time kernel
    31s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17-03-2023 15:50

General

  • Target

    Mail_4274476.doc

  • Size

    511.4MB

  • MD5

    b5c5a49a90b1eda58078f1d12a66134a

  • SHA1

    a44a300a79d24db8a0577b41685ff70bf8210596

  • SHA256

    95c525353bdebaa7f105518a7d62a67f14a39dfd9276e0a25c6ad5fbb95ae9ea

  • SHA512

    f9a425b6ea7661e49124e7217d62b151101368657c490f4a301a4af1282e24cde0899c01bca82816b74848bae129541ab1a1fa137f654a7da8da4da876d5ec43

  • SSDEEP

    6144:zZRtBPT4N/uQaNULlPUvauNTklB7ShcbYdFf8UOPv:zZvJhfKd2amwYdKUq

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
  • Script User-Agent 9 IoCs

    Uses user-agent string associated with script host/environment.

  • 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\Mail_4274476.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:1324
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:664

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1324-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1324-80-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-82-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-83-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-81-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-84-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-85-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-86-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-87-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-88-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-89-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-90-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-91-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-92-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-93-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-94-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-95-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-96-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-97-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-98-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-99-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-100-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-123-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-166-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB

    • memory/1324-183-0x0000000000350000-0x0000000000450000-memory.dmp
      Filesize

      1024KB