Analysis

  • max time kernel
    114s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:54

General

  • Target

    7764ea41d200dacb9c7a7686027f34a6a0d5d35a625361bdc4bc72c59efb4710.xls

  • Size

    93KB

  • MD5

    8feb4781ff5f278eb1194f176170c632

  • SHA1

    0dbc7ad0e4671099b2fece8fc390b4575d729cbd

  • SHA256

    7764ea41d200dacb9c7a7686027f34a6a0d5d35a625361bdc4bc72c59efb4710

  • SHA512

    59b1474e697d82e69272f7c8c790ccdc85caf1aaf2e9edc5255f077060f0501bb17ba2885e761baf1b8fe35c4557e8af1791131a8c597d96bbf85caf3f6dad70

  • SSDEEP

    1536:KOOOO67Dy1SN12lXbjSytC2BhYS6D8YUYh1gxv7yZmspH7+cclKiEZClsPI4uko:Ph1gxv7yZmspH7+cclKisPI4ukoRWGNY

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\7764ea41d200dacb9c7a7686027f34a6a0d5d35a625361bdc4bc72c59efb4710.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:916
    • 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:596
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1592
    • 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:268
    • 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:1464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/268-220-0x0000000000000000-mapping.dmp
  • memory/596-219-0x0000000000000000-mapping.dmp
  • memory/916-75-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/916-58-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/916-61-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-60-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-59-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-62-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-63-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-65-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-66-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-64-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-67-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-68-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-76-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-70-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-71-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-72-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-73-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-383-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/916-57-0x0000000076091000-0x0000000076093000-memory.dmp
    Filesize

    8KB

  • memory/916-69-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-77-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-80-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-79-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-78-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-83-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-84-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-82-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-81-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-85-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-86-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-87-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-109-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-74-0x000000000070C000-0x0000000000710000-memory.dmp
    Filesize

    16KB

  • memory/916-55-0x00000000712F1000-0x00000000712F3000-memory.dmp
    Filesize

    8KB

  • memory/916-385-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/916-54-0x000000002FB31000-0x000000002FB34000-memory.dmp
    Filesize

    12KB

  • memory/1464-221-0x0000000000000000-mapping.dmp
  • memory/1592-222-0x0000000000000000-mapping.dmp