Analysis

  • max time kernel
    101s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18/09/2022, 22:28

General

  • Target

    7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d.xls

  • Size

    461KB

  • MD5

    c702c80f6823dc3e12976430ca4ebea8

  • SHA1

    95bd6c2739677a1f588622e7786586f47c8fa76c

  • SHA256

    7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d

  • SHA512

    15515dd49fc29dea7d0189a091df47d0cb14c76f66a06ece71fa2e0391d3cbc45c77b1c1801700bd5c7d9621a15e748daf1b9cad581e583c003b69ffca00978e

  • SSDEEP

    6144:AIrnMODz6BllKWTfZjPrXGPLk5cROH+SlFnR0F9E4kyWJEV3H:7rnMODz/OcIHJnGF9hT

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\7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d.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:1084
    • 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:1408
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1752
    • 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:2028
    • 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:1748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1084-54-0x000000002F9E1000-0x000000002F9E4000-memory.dmp

    Filesize

    12KB

  • memory/1084-55-0x0000000070DB1000-0x0000000070DB3000-memory.dmp

    Filesize

    8KB

  • memory/1084-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1084-57-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB

  • memory/1084-58-0x0000000074C91000-0x0000000074C93000-memory.dmp

    Filesize

    8KB

  • memory/1084-383-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB

  • memory/1084-384-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1084-385-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB