Analysis

  • max time kernel
    105s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 03:09

General

  • Target

    清单表/中国工商银行股份有限公司阳江分行营业综合用房及地下停车场基坑.xls

  • Size

    133KB

  • MD5

    5dc23c1bb522f648a3378927810144f9

  • SHA1

    63bc0c9254d171c58112b1ddc68ada977adc4492

  • SHA256

    43d4bb7a5498ca535c4ae3daedf83858812b87bae3ad8e63fd616170f53fda4c

  • SHA512

    5d7e7d733799d3df9bb142ae490d9a2be73eb332293ec7dbbd405b7b5d105a3cd8095e1c290aea83ca5557895339a28b51b4177dd6ea05d811b22ce8812ab42f

  • SSDEEP

    1536:NpbrbuT5D8JJJ2ARaTraw83iU2jcc0lbxOvTgZ80I/cJtXwPvS:uAN2jcc0lbxOrwIEJtXwnS

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\清单表\中国工商银行股份有限公司阳江分行营业综合用房及地下停车场基坑.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:1396
    • 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:536
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1692
    • 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:1432
    • 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:1576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/536-219-0x0000000000000000-mapping.dmp
  • memory/1396-74-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-55-0x0000000071491000-0x0000000071493000-memory.dmp
    Filesize

    8KB

  • memory/1396-57-0x000000007247D000-0x0000000072488000-memory.dmp
    Filesize

    44KB

  • memory/1396-58-0x00000000760E1000-0x00000000760E3000-memory.dmp
    Filesize

    8KB

  • memory/1396-59-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-60-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-72-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-62-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-63-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-64-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-65-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-66-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-71-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-70-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-69-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-68-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-67-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-75-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-61-0x000000000082E000-0x0000000000834000-memory.dmp
    Filesize

    24KB

  • memory/1396-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1396-73-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-77-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-76-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-78-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-80-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-79-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-83-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-84-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-82-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-81-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-85-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-86-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-87-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-109-0x0000000000834000-0x0000000000838000-memory.dmp
    Filesize

    16KB

  • memory/1396-54-0x000000002FC41000-0x000000002FC44000-memory.dmp
    Filesize

    12KB

  • memory/1396-385-0x000000007247D000-0x0000000072488000-memory.dmp
    Filesize

    44KB

  • memory/1396-383-0x000000007247D000-0x0000000072488000-memory.dmp
    Filesize

    44KB

  • memory/1432-220-0x0000000000000000-mapping.dmp
  • memory/1576-221-0x0000000000000000-mapping.dmp
  • memory/1692-222-0x0000000000000000-mapping.dmp