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Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 03:06

General

  • Target

    4ee4f9d3e300160baa41695bd597a238.xls

  • Size

    177KB

  • MD5

    4ee4f9d3e300160baa41695bd597a238

  • SHA1

    4e81eef7bc19d10207b030c65cd7063c5666103e

  • SHA256

    58c0ea4a770bf33a1d3f359370e9fb7e4542d612f920bd6fd97570f16b7ab30d

  • SHA512

    5704cbcd80c2dc35850659bd0e061243ffab0cf3a0d1e8b33e6e1aea26b421d2ac952052d8ff9f1487a92aeb8d7eb35f98cec1f502c6c62af02a7e069c6d2f91

  • SSDEEP

    3072:b1mXOps/m+vksm2hvUPqFPI4ukoRWGNwzncGAuBrNhBJDBuAWVbrzF7ITkDXbEbR:hmXOps/m+vksm2hvUPqFPI4ukoRWGNwp

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\4ee4f9d3e300160baa41695bd597a238.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:828
    • 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:1904
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1712
    • 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:2084
    • 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:1524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/828-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/828-1-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB

  • memory/828-2-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-3-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-4-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-5-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-6-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-7-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-8-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-10-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-11-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-12-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-13-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-14-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-16-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-15-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-17-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-18-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-9-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-19-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-21-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-20-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-23-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-25-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-24-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-26-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-27-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-28-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-29-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-22-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-30-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-31-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-32-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-55-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-78-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-108-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-125-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-149-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-171-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-194-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB

  • memory/828-196-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-218-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-222-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-244-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-271-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-292-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-330-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-342-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-343-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-344-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-345-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-346-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-347-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-348-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-349-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-350-0x0000000000740000-0x0000000000840000-memory.dmp

    Filesize

    1024KB

  • memory/828-354-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB