Analysis

  • max time kernel
    112s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 21:07

General

  • Target

    语文.xls

  • Size

    155KB

  • MD5

    affab620cd4c0a0b6b68d9eb1dbddd1e

  • SHA1

    86d4a4c9328762e7819d9d1203bafa9ceb2e7023

  • SHA256

    18ee8040609562e0d7890555c27bbf19029a41f724209eb8f49a1c021314e91c

  • SHA512

    5b5b4fa2eaae68ddab8db99ccfc27eddd0ca13d9a735da5421f18c0a8eb3242279b8dc3857076c0346e5f5bab37ca2492d4b6a32317377481e2504b08756e35e

  • SSDEEP

    3072:LSVQzu271vEDW3YkWVbrzQ7IjHgkZyDWTtn6KNLk:L0vHj

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 4 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 5 IoCs
  • Suspicious use of WriteProcessMemory 20 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\语文.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:2036
    • 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:1776
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1184
    • 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:1352
    • 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:1648
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\语文_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1052

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/1052-312-0x0000000000000000-mapping.dmp
  • memory/1184-222-0x0000000000000000-mapping.dmp
  • memory/1352-220-0x0000000000000000-mapping.dmp
  • memory/1648-221-0x0000000000000000-mapping.dmp
  • memory/1776-219-0x0000000000000000-mapping.dmp
  • memory/2036-84-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-82-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-59-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-62-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-63-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-64-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-65-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-67-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-66-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-69-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-68-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-71-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-70-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-72-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-73-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-54-0x000000002FE51000-0x000000002FE54000-memory.dmp
    Filesize

    12KB

  • memory/2036-85-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-86-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-83-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-60-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-81-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-80-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-79-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-78-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-77-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-76-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-75-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-74-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-87-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-109-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-61-0x000000000032E000-0x0000000000332000-memory.dmp
    Filesize

    16KB

  • memory/2036-58-0x0000000076151000-0x0000000076153000-memory.dmp
    Filesize

    8KB

  • memory/2036-57-0x000000007259D000-0x00000000725A8000-memory.dmp
    Filesize

    44KB

  • memory/2036-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2036-223-0x000000007259D000-0x00000000725A8000-memory.dmp
    Filesize

    44KB

  • memory/2036-55-0x00000000715B1000-0x00000000715B3000-memory.dmp
    Filesize

    8KB

  • memory/2036-430-0x000000007259D000-0x00000000725A8000-memory.dmp
    Filesize

    44KB