Analysis

  • max time kernel
    103s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:25

General

  • Target

    6dd3bb33c666e7c81be63e218f26c88f77eee70a65524ff37c148c4da3573362.xls

  • Size

    91KB

  • MD5

    b058cb31647157b7580b0c437ecac2ef

  • SHA1

    a4abd2d31aadf839a19cb2ab8a79d98991bee167

  • SHA256

    6dd3bb33c666e7c81be63e218f26c88f77eee70a65524ff37c148c4da3573362

  • SHA512

    d5f017d960e71d453fe55255d72eb5d031b945e7eafabd0d6c75179059f6f7c17020fcebfca2ada982ee761b04824061526468fba37ea5361aaeb5ae41e4aaa3

  • SSDEEP

    1536:yiiiG4ebPv9WVHrzQ7ITkcKo62lGM88SdJtXw9x2dqRE:GWVHrzQ7ITkqtjIJtXw72dqRE

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 7 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\6dd3bb33c666e7c81be63e218f26c88f77eee70a65524ff37c148c4da3573362.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:1728
    • 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:472
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:688
    • 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:388
    • 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:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/388-220-0x0000000000000000-mapping.dmp
  • memory/472-219-0x0000000000000000-mapping.dmp
  • memory/688-222-0x0000000000000000-mapping.dmp
  • memory/1356-221-0x0000000000000000-mapping.dmp
  • memory/1728-72-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-223-0x0000000071F4D000-0x0000000071F58000-memory.dmp
    Filesize

    44KB

  • memory/1728-60-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-70-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-62-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-63-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-65-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-64-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-66-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-67-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-69-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-77-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-76-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-75-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-74-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-73-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-54-0x000000002F741000-0x000000002F744000-memory.dmp
    Filesize

    12KB

  • memory/1728-71-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-59-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-61-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-68-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-79-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-80-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-81-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-82-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-83-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-84-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-85-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-86-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-87-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-109-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-58-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
    Filesize

    8KB

  • memory/1728-57-0x0000000071F4D000-0x0000000071F58000-memory.dmp
    Filesize

    44KB

  • memory/1728-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1728-55-0x0000000070F61000-0x0000000070F63000-memory.dmp
    Filesize

    8KB

  • memory/1728-78-0x0000000000769000-0x000000000076F000-memory.dmp
    Filesize

    24KB

  • memory/1728-385-0x0000000071F4D000-0x0000000071F58000-memory.dmp
    Filesize

    44KB