Analysis

  • max time kernel
    158s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:55

General

  • Target

    ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4.xls

  • Size

    200KB

  • MD5

    5e7713e2751fa7557db469718be353d1

  • SHA1

    b178e8d22a12c64e04b58c52778626dad0c36058

  • SHA256

    ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4

  • SHA512

    5100bc0ee4e29d523db335163e5086b5cb863e3fe7c52bb4442db646d1edeb821396436be900830b5a64f1a4eea6b77f95280a06a1d21bdd5539cf9a2a748331

  • SSDEEP

    3072:BRSqhKJZKmWK839SwLk2CmUITDLWQblqHoHZPPFWVbrzQ7ITcZLjhJtXwI8:fScbKyTXWQblqHoHZP3

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 7 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\ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4.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:1596
    • 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:884
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:900
    • 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:1484
    • 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:1364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/884-219-0x0000000000000000-mapping.dmp
  • memory/900-222-0x0000000000000000-mapping.dmp
  • memory/1364-221-0x0000000000000000-mapping.dmp
  • memory/1484-220-0x0000000000000000-mapping.dmp
  • memory/1596-54-0x000000002F421000-0x000000002F424000-memory.dmp
    Filesize

    12KB

  • memory/1596-55-0x0000000071C11000-0x0000000071C13000-memory.dmp
    Filesize

    8KB

  • memory/1596-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1596-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1596-58-0x00000000767D1000-0x00000000767D3000-memory.dmp
    Filesize

    8KB

  • memory/1596-223-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1596-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1596-385-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB