Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    14/01/2022, 03:45

General

  • Target
    SecuriteInfo.com.Trojan.Agent.FRJZ.710.9128.xlsm
  • Size 82KB
  • Sample220114-ea4w4secgj
  • SHA256 3a99b9589a020ce47d00c9c050fdffca4069352963db72376f867ee9e1c8e92c
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://insertcatherreview.xyz/wp-includes/UUlQtC51SL8IzBT/

  • xlm40.dropper

    http://bbc-us.com/wp-admin/48r6tiF1qTMqrAO/

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 4 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.Trojan.Agent.FRJZ.710.9128.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:1748
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\wxeu.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:432
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\wxeu.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bpsadlysgtsqnjs\ravwfottwz.tin",ZpvbzxIc
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1956
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bpsadlysgtsqnjs\ravwfottwz.tin",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1752

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/432-62-0x00000000002D5000-0x00000000002D6000-memory.dmp

        memory/432-61-0x00000000002B1000-0x00000000002D5000-memory.dmp

        memory/432-58-0x0000000075761000-0x0000000075763000-memory.dmp

        memory/1052-68-0x0000000000571000-0x0000000000595000-memory.dmp

        memory/1052-72-0x0000000000D21000-0x0000000000D45000-memory.dmp

        memory/1052-76-0x00000000026E1000-0x0000000002705000-memory.dmp

        memory/1052-66-0x00000000001F1000-0x0000000000215000-memory.dmp

        memory/1052-74-0x0000000002571000-0x0000000002595000-memory.dmp

        memory/1052-70-0x0000000000CC1000-0x0000000000CE5000-memory.dmp

        memory/1748-54-0x000000002F371000-0x000000002F374000-memory.dmp

        memory/1748-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1748-55-0x0000000071311000-0x0000000071313000-memory.dmp

        memory/1752-86-0x00000000003E1000-0x0000000000405000-memory.dmp

        memory/1752-88-0x0000000000491000-0x00000000004B5000-memory.dmp

        memory/1752-90-0x00000000009E1000-0x0000000000A05000-memory.dmp

        memory/1752-92-0x0000000000A81000-0x0000000000AA5000-memory.dmp

        memory/1956-80-0x0000000000201000-0x0000000000225000-memory.dmp