Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11/01/2022, 22:17

General

  • Target
    SecuriteInfo.com.Heur.7584.30747.xlsm
  • Size 83KB
  • Sample220111-17cpsahhen
  • SHA256 95761ae4efbb60ee498b7d56d6c84e48753a21ab59a655f5439b47167baf6ea2
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://unifiedpharma.com/wp-admin/ildi5K2aTIrdvEobQ/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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\SecuriteInfo.com.Heur.7584.30747.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:1628
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:420
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kaoaankkp\clcmv.cvd",YHnQbAJThmuEpFc
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1728
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kaoaankkp\clcmv.cvd",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1948

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/420-63-0x00000000002B5000-0x00000000002B6000-memory.dmp

        memory/420-62-0x0000000000291000-0x00000000002B5000-memory.dmp

        memory/420-59-0x0000000076B81000-0x0000000076B83000-memory.dmp

        memory/1176-69-0x0000000000901000-0x0000000000925000-memory.dmp

        memory/1176-73-0x0000000000D21000-0x0000000000D45000-memory.dmp

        memory/1176-77-0x0000000002681000-0x00000000026A5000-memory.dmp

        memory/1176-75-0x0000000000EA1000-0x0000000000EC5000-memory.dmp

        memory/1176-67-0x0000000000331000-0x0000000000355000-memory.dmp

        memory/1176-71-0x0000000000B21000-0x0000000000B45000-memory.dmp

        memory/1628-55-0x000000002FC51000-0x000000002FC54000-memory.dmp

        memory/1628-56-0x00000000718F1000-0x00000000718F3000-memory.dmp

        memory/1628-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1728-81-0x0000000000761000-0x0000000000785000-memory.dmp

        memory/1948-85-0x0000000000771000-0x0000000000795000-memory.dmp

        memory/1948-87-0x0000000000851000-0x0000000000875000-memory.dmp

        memory/1948-89-0x0000000000A11000-0x0000000000A35000-memory.dmp

        memory/1948-93-0x0000000002C81000-0x0000000002CA5000-memory.dmp