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Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 07:03

General

  • Target

    2c9e807bd4885bd5c5eb82b886481f8d.xls

  • Size

    131KB

  • MD5

    2c9e807bd4885bd5c5eb82b886481f8d

  • SHA1

    3e6bd1731ff2665598fb1ee809b365f72d6e6e7d

  • SHA256

    02d2d51e9842029e502afd688a23b7711e4de43cb8a86d49d658cf0e8f34abe2

  • SHA512

    dddd50388625c9f21d19901d4593b832f59339ff1802ca21e95e1bf479d6b4fd2899b241e585dceca10289ba11773b95a1bada5c12681405b1bc47cbb0ce4016

  • SSDEEP

    1536:lccAqch5oxdUPfqJ9j0ZWVbri77ITkiD2lcV4hdWWt2XKsZM2M/MRURZULOW:rqfpWVbri77ITkDxh4ap5kKUL3

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\2c9e807bd4885bd5c5eb82b886481f8d.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:2976
    • 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:312
    • 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:556
    • 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:544
  • C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    1⤵
    • Views/modifies file attributes
    PID:1324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2976-1-0x0000000072C6D000-0x0000000072C78000-memory.dmp

    Filesize

    44KB

  • memory/2976-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2976-19-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-31-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-54-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-72-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-96-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-116-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-169-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-129-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-187-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-200-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-185-0x0000000072C6D000-0x0000000072C78000-memory.dmp

    Filesize

    44KB

  • memory/2976-243-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-247-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-245-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-273-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-313-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-315-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-317-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-344-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-345-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-346-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-347-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-348-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-349-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2976-352-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2976-353-0x0000000072C6D000-0x0000000072C78000-memory.dmp

    Filesize

    44KB