Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    12/01/2022, 05:56

General

  • Target
    SecuriteInfo.com.Heur.11449.24126.xlsm
  • Size 83KB
  • Sample220112-gm2cvsbebk
  • SHA256 41821381e38770d4b4eb06654fec731e89e45185dec97fac4dbef59560bb3fa9
  • 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 5 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.11449.24126.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:832
    • 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:1072
      • 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:1996
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ujchdq\rsnw.nez",sdzN
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1484
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ujchdq\rsnw.nez",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1820

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/832-55-0x0000000071681000-0x0000000071683000-memory.dmp

        memory/832-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/832-54-0x000000002FC41000-0x000000002FC44000-memory.dmp

        memory/1072-58-0x0000000075891000-0x0000000075893000-memory.dmp

        memory/1072-62-0x00000000001C5000-0x00000000001C6000-memory.dmp

        memory/1072-61-0x00000000001A1000-0x00000000001C5000-memory.dmp

        memory/1484-80-0x0000000000271000-0x0000000000295000-memory.dmp

        memory/1820-84-0x0000000000141000-0x0000000000165000-memory.dmp

        memory/1820-86-0x0000000000261000-0x0000000000285000-memory.dmp

        memory/1820-88-0x0000000000891000-0x00000000008B5000-memory.dmp

        memory/1820-90-0x00000000009D1000-0x00000000009F5000-memory.dmp

        memory/1820-92-0x0000000002381000-0x00000000023A5000-memory.dmp

        memory/1996-70-0x0000000000AC1000-0x0000000000AE5000-memory.dmp

        memory/1996-72-0x0000000000B91000-0x0000000000BB5000-memory.dmp

        memory/1996-74-0x00000000023B1000-0x00000000023D5000-memory.dmp

        memory/1996-76-0x00000000024B1000-0x00000000024D5000-memory.dmp

        memory/1996-68-0x00000000009E1000-0x0000000000A05000-memory.dmp

        memory/1996-66-0x0000000000301000-0x0000000000325000-memory.dmp