Analysis

  • max time kernel
    152s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:26

General

  • Target

    答辩16日第7组.xls

  • Size

    101KB

  • MD5

    2f424af4c436a6d478c427dbe7ac300a

  • SHA1

    dad41d786c8efbb59f53142b6575c7d0e9ba9dc5

  • SHA256

    9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9

  • SHA512

    f33002fa59bf675629181e43a99680d8b9d92b628352332236d0e3cbe4ddd981a2da887e1889683de582fd77c1bc23957a58927b747aa6760bfe9c51a91cb5e2

  • SSDEEP

    1536:G777PJtT1V3WVbrzQ7lSzTkR62lGM88DcJtXwRtM2M/MW1adQ:gWVbrzQ7UTk9tjYJtXwQ5ksadQ

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\答辩16日第7组.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:1492
    • 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:1448
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:2024
    • 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:2040
    • 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:1252

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1252-222-0x0000000000000000-mapping.dmp
  • memory/1448-220-0x0000000000000000-mapping.dmp
  • memory/1492-78-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-63-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-74-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-60-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-59-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-61-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-62-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-75-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-64-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-65-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-66-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-67-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-54-0x000000002FD21000-0x000000002FD24000-memory.dmp
    Filesize

    12KB

  • memory/1492-68-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-72-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-73-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-71-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-70-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-76-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-77-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-69-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-57-0x0000000071EAD000-0x0000000071EB8000-memory.dmp
    Filesize

    44KB

  • memory/1492-58-0x0000000075701000-0x0000000075703000-memory.dmp
    Filesize

    8KB

  • memory/1492-81-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-82-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-80-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-79-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-85-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-86-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-84-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-83-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-87-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-109-0x0000000000463000-0x0000000000467000-memory.dmp
    Filesize

    16KB

  • memory/1492-153-0x0000000000465000-0x0000000000467000-memory.dmp
    Filesize

    8KB

  • memory/1492-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1492-388-0x0000000071EAD000-0x0000000071EB8000-memory.dmp
    Filesize

    44KB

  • memory/1492-55-0x0000000070EC1000-0x0000000070EC3000-memory.dmp
    Filesize

    8KB

  • memory/1492-386-0x0000000000465000-0x0000000000467000-memory.dmp
    Filesize

    8KB

  • memory/1492-224-0x0000000000465000-0x0000000000467000-memory.dmp
    Filesize

    8KB

  • memory/1492-360-0x0000000000465000-0x0000000000467000-memory.dmp
    Filesize

    8KB

  • memory/2024-223-0x0000000000000000-mapping.dmp
  • memory/2040-221-0x0000000000000000-mapping.dmp