Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11/01/2022, 22:17

General

  • Target
    SecuriteInfo.com.Heur.18407.4012.xlsm
  • Size 83KB
  • Sample220111-17cpsahhem
  • SHA256 e55ce4bc7ca054665ac48b9640d2f0f3bc4a83af6c95b4019b28c4d49ba669b9
  • 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.18407.4012.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:1532
    • 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:1848
      • 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:1096
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mvhvdtznqkkz\jcxzjpypmlqe.lsm",JbxtYO
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1764
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mvhvdtznqkkz\jcxzjpypmlqe.lsm",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1252

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1096-75-0x0000000002511000-0x0000000002535000-memory.dmp

        memory/1096-73-0x00000000024B1000-0x00000000024D5000-memory.dmp

        memory/1096-71-0x0000000002451000-0x0000000002475000-memory.dmp

        memory/1096-69-0x0000000002191000-0x00000000021B5000-memory.dmp

        memory/1096-67-0x0000000000241000-0x0000000000265000-memory.dmp

        memory/1252-83-0x00000000002F1000-0x0000000000315000-memory.dmp

        memory/1252-89-0x0000000000BC1000-0x0000000000BE5000-memory.dmp

        memory/1252-87-0x0000000000AC1000-0x0000000000AE5000-memory.dmp

        memory/1252-85-0x0000000000A11000-0x0000000000A35000-memory.dmp

        memory/1532-56-0x0000000071B61000-0x0000000071B63000-memory.dmp

        memory/1532-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1532-55-0x000000002F301000-0x000000002F304000-memory.dmp

        memory/1764-79-0x0000000000681000-0x00000000006A5000-memory.dmp

        memory/1848-59-0x0000000076851000-0x0000000076853000-memory.dmp

        memory/1848-63-0x0000000000245000-0x0000000000246000-memory.dmp

        memory/1848-62-0x0000000000221000-0x0000000000245000-memory.dmp