Analysis

  • max time kernel
    101s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:22

General

  • Target

    博物馆/92仿古费用表.xls

  • Size

    88KB

  • MD5

    a3ca7b671b6451cdcafd8f47a4e88e75

  • SHA1

    a508ac5d96b1526c37a808f886c06dfe068fe5e9

  • SHA256

    3b65f45b8ef1ae7e290bd79f6b4be830b8dcd3dd53ce4b2f3086c356170710a6

  • SHA512

    85c144a33fdefe5e3b38d4a6b163a844b44605ee3ad60d664d31dcafbe622e35f55095e8b4929cce6e50ff5a7f18ff8064b1dccddd12c493cead5fa51c1f1fe9

  • SSDEEP

    1536:i222y9MfecOg2jcc0lbxOvTgZsLcY7nJdFoOGIayWU2XKgb/:qg2jcc0lbxOr/p8baq/

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 5 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\博物馆\92仿古费用表.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:1408
    • 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:1688
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1176
    • 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:1808
    • 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:1752

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1176-222-0x0000000000000000-mapping.dmp

  • memory/1408-73-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-84-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-57-0x00000000720CD000-0x00000000720D8000-memory.dmp

    Filesize

    44KB

  • memory/1408-58-0x00000000750A1000-0x00000000750A3000-memory.dmp

    Filesize

    8KB

  • memory/1408-59-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-60-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-75-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-62-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-63-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-64-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-65-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-66-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-68-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-67-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-69-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-70-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-71-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-72-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-61-0x0000000000645000-0x0000000000648000-memory.dmp

    Filesize

    12KB

  • memory/1408-385-0x00000000720CD000-0x00000000720D8000-memory.dmp

    Filesize

    44KB

  • memory/1408-74-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-78-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-77-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-76-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-81-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-82-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-80-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-79-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1408-83-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-86-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-85-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-87-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-109-0x0000000000648000-0x0000000000651000-memory.dmp

    Filesize

    36KB

  • memory/1408-54-0x000000002FBF1000-0x000000002FBF4000-memory.dmp

    Filesize

    12KB

  • memory/1408-383-0x00000000720CD000-0x00000000720D8000-memory.dmp

    Filesize

    44KB

  • memory/1408-55-0x00000000710E1000-0x00000000710E3000-memory.dmp

    Filesize

    8KB

  • memory/1688-219-0x0000000000000000-mapping.dmp

  • memory/1752-221-0x0000000000000000-mapping.dmp

  • memory/1808-220-0x0000000000000000-mapping.dmp