Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 06:49

General

  • Target

    5ab761679b1a058f846bb9e6758ae2e4.xls

  • Size

    134KB

  • MD5

    5ab761679b1a058f846bb9e6758ae2e4

  • SHA1

    9e3fd094b07d7acd475088584199b6435d9ada43

  • SHA256

    19aec9a3adc4f07ef1344a9e1acc76c7712dc9c6096b50a2f03fef0b32f1ae5d

  • SHA512

    06602873063d0cbd77f267513b936bfaf176d7c540a2f871c0629596216f770c45167e4e74a8e2316ad71954b308f230e95116fb3421fb4d4a1c87a8b0099361

  • SSDEEP

    1536:muuuuaPrYFE5JouDvyGLV7WVbrzQ7ITkk62lRgeOEg8JtXw2AM2M/McuS7JuM:WE56e1JWVbrzQ7ITkcwcJtXwC5ktM

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\5ab761679b1a058f846bb9e6758ae2e4.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:2064
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1484
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2376-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2376-1-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB

  • memory/2376-4-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-3-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-16-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-24-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-29-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-32-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-31-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-30-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-54-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-28-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-27-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-25-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-26-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-23-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-78-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-22-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-20-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-21-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-19-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-18-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-17-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-15-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-14-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-13-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-11-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-12-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-10-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-9-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-8-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-7-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-6-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-5-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-2-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-101-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-122-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB

  • memory/2376-123-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-124-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-125-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-127-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-156-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-172-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-176-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-199-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-246-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-224-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-270-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-300-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-340-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-342-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-370-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-371-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-372-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-373-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-374-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-375-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-376-0x0000000000730000-0x0000000000830000-memory.dmp

    Filesize

    1024KB

  • memory/2376-380-0x0000000072CFD000-0x0000000072D08000-memory.dmp

    Filesize

    44KB