Analysis

  • max time kernel
    1741s
  • max time network
    1560s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2023 02:26

General

  • Target

    Challenge_FIles/Employee_W2_Form.docx

  • Size

    12KB

  • MD5

    45e7d6562bfddb816d45649dd667abde

  • SHA1

    00087e46ec0ef6225de59868fd016bd9dd77fa3c

  • SHA256

    679bbe0c50754853978a3a583505ebb99bce720cf26a6aaf8be06cd879701ff1

  • SHA512

    0567873b42eece93787da4f4c3b72ecb0d952450d8eb59b354a5f91ed95395a2662171e05cdcf4a829fdbd0b5cbcca97701fef9b96b1ad0d8728922bbd0288fa

  • SSDEEP

    192:f6ijVmar18H111M05AgPekrFD2h0vsmyVk7PeOJ2wc3rMKkokceeQh:f6ijca6H111/eo1hvsHieIhoseQh

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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 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\Challenge_FIles\Employee_W2_Form.docx"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2544

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
      Filesize

      28B

      MD5

      4e30a3397e81dd38a188e78fc94e5a77

      SHA1

      95e2efa493065e02c7370befbe5a4bc1340cf5ef

      SHA256

      ddd0b5a9b8bd9275ddd6bd1d9d033c56734a5bb184b4371e50c2200b903397cb

      SHA512

      6d9ba51003c7c056e2628f8c435029c8a62e4a7e9a40b59c952af160b91449aa4b9e5e4084a275e1825c6be0cd1c8ee22709beb1c13839be8b29c63b2509df53

    • memory/2912-0-0x000000002FDD1000-0x000000002FDD2000-memory.dmp
      Filesize

      4KB

    • memory/2912-1-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2912-2-0x0000000070FBD000-0x0000000070FC8000-memory.dmp
      Filesize

      44KB

    • memory/2912-11-0x0000000070FBD000-0x0000000070FC8000-memory.dmp
      Filesize

      44KB