Analysis

  • max time kernel
    134s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07/06/2022, 08:13

General

  • Target
    sample20220608-01.xlsm
  • Size 30KB
  • Sample220607-j4l1lsgeej
  • SHA256 87b8c12b32af3a2f0ffa4fbc4f8bc9c10789e5130ce73d02dfbfe1b6d9463619
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 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\sample20220608-01.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s excel
      2⤵
      • Process spawned unexpected child process
      PID:1460
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s C:\Users\Admin\AppData\Local\Temp\63531.
      2⤵
      • Process spawned unexpected child process
      PID:468

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/736-54-0x000000002FDD1000-0x000000002FDD4000-memory.dmp

        memory/736-55-0x0000000071D71000-0x0000000071D73000-memory.dmp

        memory/736-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/736-57-0x0000000072D5D000-0x0000000072D68000-memory.dmp

        memory/736-58-0x0000000076851000-0x0000000076853000-memory.dmp

        memory/736-59-0x0000000072D5D000-0x0000000072D68000-memory.dmp

        memory/736-64-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/736-65-0x0000000072D5D000-0x0000000072D68000-memory.dmp