Analysis

  • max time kernel
    105s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2022 23:06

General

  • Target

    d867040c772982ad705e87854d67c53b1b9b4570c613566365b75c0a90bda031.xls

  • Size

    195KB

  • MD5

    2f154be2a940796a9550725d288b531c

  • SHA1

    02532ac56e677901776652f64f7ea80b31a2ecac

  • SHA256

    d867040c772982ad705e87854d67c53b1b9b4570c613566365b75c0a90bda031

  • SHA512

    ebbd04f016079744fc5191563f53d7f55e9dd580e584dcc1861f6494e57b79ccbb70a1bb376d3661613bf813d710f12dafbfb9dcc7be90c54005b32977e937a0

  • SSDEEP

    3072:Gd6AqR+upWVbrzQ7Iu/lSkDERav+i6HSTv:dPmcUS

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 3 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\d867040c772982ad705e87854d67c53b1b9b4570c613566365b75c0a90bda031.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:1768
    • 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:516
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1068
    • 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:1884
    • 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:892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/516-219-0x0000000000000000-mapping.dmp

  • memory/892-221-0x0000000000000000-mapping.dmp

  • memory/1068-222-0x0000000000000000-mapping.dmp

  • memory/1768-74-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-383-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB

  • memory/1768-60-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-59-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-66-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-65-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-64-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-63-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-75-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-67-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-62-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-69-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-70-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-61-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1768-73-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-72-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-71-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-54-0x000000002FE21000-0x000000002FE24000-memory.dmp

    Filesize

    12KB

  • memory/1768-68-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-58-0x0000000076961000-0x0000000076963000-memory.dmp

    Filesize

    8KB

  • memory/1768-83-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-77-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-79-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-80-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-81-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-78-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-82-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-85-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-84-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-86-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-87-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-109-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1768-57-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB

  • memory/1768-385-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB

  • memory/1768-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1768-55-0x0000000071BE1000-0x0000000071BE3000-memory.dmp

    Filesize

    8KB

  • memory/1768-76-0x0000000000576000-0x000000000057A000-memory.dmp

    Filesize

    16KB

  • memory/1884-220-0x0000000000000000-mapping.dmp