Analysis

  • max time kernel
    159s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 14:03

General

  • Target

    K1-3K2-2ؿбļ/02.ļ/01./2.�.xls

  • Size

    92KB

  • MD5

    1b308dad66fe8bed16702ed86488b6dc

  • SHA1

    eeaa65009294e640485fccf06a52f73ab387fab5

  • SHA256

    b3031ff3fce6494914e3349bf3baa4f4cf10d2ef43af0cb845f3346e26119027

  • SHA512

    c69a36179cc32351762d893daf13e9d098111db1e6d57135fe959f812c9dba1ef2ee1aa059228d5b2f89036d490047a0e6bd91b29874b622c2176af1367e7eb8

  • SSDEEP

    1536:4OOOO67Dy1SNmVnLziCdymRxoiKTMEO3Qn6v7yZmspH7+7alMiEZClsPI4ukoRWJ:a3Qn6v7yZmspH7+7alMisPI4ukoRWGN+

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\K1-3K2-2ؿбļ\02.ļ\01.\2.�.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:1216
    • 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:1472
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1688
    • 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:928
    • 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:1348

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/928-220-0x0000000000000000-mapping.dmp
  • memory/1216-54-0x000000002F771000-0x000000002F774000-memory.dmp
    Filesize

    12KB

  • memory/1216-55-0x0000000071211000-0x0000000071213000-memory.dmp
    Filesize

    8KB

  • memory/1216-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1216-57-0x00000000721FD000-0x0000000072208000-memory.dmp
    Filesize

    44KB

  • memory/1216-58-0x0000000075011000-0x0000000075013000-memory.dmp
    Filesize

    8KB

  • memory/1216-383-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1216-384-0x00000000721FD000-0x0000000072208000-memory.dmp
    Filesize

    44KB

  • memory/1348-221-0x0000000000000000-mapping.dmp
  • memory/1472-219-0x0000000000000000-mapping.dmp
  • memory/1688-222-0x0000000000000000-mapping.dmp