Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    12/01/2022, 02:56

General

  • Target
    913636833f9374397ae740960fba067e.xls
  • Size 113KB
  • Sample220112-de16caahgp
  • SHA256 fee63d184b4f72c5fdc678d786214be5361b7f6a2daa4be6d6947cc99b6ea9dd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://ordinateur.ogivart.us/editor/Qpo7OAOnbe/

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • 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 3 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\913636833f9374397ae740960fba067e.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:1684
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\sun.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\sun.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:788
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lzauongjjiyr\orxweo.phk",BWlIpZTtplSYH
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1752
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lzauongjjiyr\orxweo.phk",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1756

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/788-69-0x00000000009B1000-0x00000000009D3000-memory.dmp

        memory/788-73-0x00000000024C1000-0x00000000024E3000-memory.dmp

        memory/788-77-0x0000000002701000-0x0000000002723000-memory.dmp

        memory/788-75-0x0000000002641000-0x0000000002663000-memory.dmp

        memory/788-71-0x0000000000BF1000-0x0000000000C13000-memory.dmp

        memory/788-67-0x0000000000481000-0x00000000004A3000-memory.dmp

        memory/1684-55-0x000000002FDE1000-0x000000002FDE4000-memory.dmp

        memory/1684-56-0x0000000070DA1000-0x0000000070DA3000-memory.dmp

        memory/1684-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1752-81-0x00000000001D1000-0x00000000001F3000-memory.dmp

        memory/1756-87-0x0000000000421000-0x0000000000443000-memory.dmp

        memory/1756-93-0x0000000002BE1000-0x0000000002C03000-memory.dmp

        memory/1756-91-0x00000000024E1000-0x0000000002503000-memory.dmp

        memory/1756-89-0x0000000002301000-0x0000000002323000-memory.dmp

        memory/1756-85-0x0000000000241000-0x0000000000263000-memory.dmp

        memory/1916-63-0x0000000000433000-0x0000000000434000-memory.dmp

        memory/1916-59-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

        memory/1916-62-0x0000000000411000-0x0000000000433000-memory.dmp