Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    13-01-2022 20:29

General

  • Target

    667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm

  • Size

    84KB

  • MD5

    c691f4ebd6bd3bb119df46580d3e1856

  • SHA1

    04f7e0487d9d3f5312863d3555038a6c072db347

  • SHA256

    667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e

  • SHA512

    c807dae75900c281eddf4d5a302dc57f8af3561947a154c0ba76f0fd68d47d3c3a3730deaa0cf05a9a9c85da1b338b24428d234419eadb3cb6cc38244390beb9

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://test.la-boticaria.com/wp-content/xAQZIPYs1tavxAz/

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
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:552
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\einl.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\einl.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        PID:1844
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zvrotuybrfk\otxwtp.zss",AbFIMOcUebqh
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1680
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Zvrotuybrfk\otxwtp.zss",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:2152

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/552-119-0x000001CEA6E10000-0x000001CEA6E12000-memory.dmp

    Filesize

    8KB

  • memory/552-115-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

    Filesize

    64KB

  • memory/552-120-0x000001CEA6E10000-0x000001CEA6E12000-memory.dmp

    Filesize

    8KB

  • memory/552-121-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

    Filesize

    64KB

  • memory/552-122-0x000001CEA6E10000-0x000001CEA6E12000-memory.dmp

    Filesize

    8KB

  • memory/552-128-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmp

    Filesize

    64KB

  • memory/552-129-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmp

    Filesize

    64KB

  • memory/552-118-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

    Filesize

    64KB

  • memory/552-117-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

    Filesize

    64KB

  • memory/552-116-0x00007FFE91410000-0x00007FFE91420000-memory.dmp

    Filesize

    64KB