Analysis

  • max time kernel
    106s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:56

General

  • Target

    2013届毕业生毕业设计分配结果/2013届毕业设计分配名单(按老师排序).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 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\2013届毕业生毕业设计分配结果\2013届毕业设计分配名单(按老师排序).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:1048
    • 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:1696
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1060
    • 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:568
    • 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:1156

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/568-220-0x0000000000000000-mapping.dmp
  • memory/1048-54-0x000000002F791000-0x000000002F794000-memory.dmp
    Filesize

    12KB

  • memory/1048-55-0x00000000716D1000-0x00000000716D3000-memory.dmp
    Filesize

    8KB

  • memory/1048-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1048-57-0x00000000726BD000-0x00000000726C8000-memory.dmp
    Filesize

    44KB

  • memory/1048-58-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB

  • memory/1048-383-0x00000000726BD000-0x00000000726C8000-memory.dmp
    Filesize

    44KB

  • memory/1048-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1048-385-0x00000000726BD000-0x00000000726C8000-memory.dmp
    Filesize

    44KB

  • memory/1060-222-0x0000000000000000-mapping.dmp
  • memory/1156-221-0x0000000000000000-mapping.dmp
  • memory/1696-219-0x0000000000000000-mapping.dmp