Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11/01/2022, 10:24

General

  • Target
    a9d2bcd6bcfd2621848a45a0e9cfc08d.xls
  • Size 113KB
  • Sample220111-mfdk4sfdhr
  • SHA256 fd9f32d79ea98273f97ea6c36042a4f43ee66720751a3e650eaa6f3f5e2dcbd1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://gaidov.bg/wp-includes/Ug/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 131.100.24.231:80

  • 209.59.138.75:7080

  • 103.8.26.102:8080

  • 178.79.147.66:8080

  • 51.38.71.0:443

  • 79.172.212.216:8080

  • 162.214.50.39:7080

  • 203.114.109.124:443

  • 45.142.114.231:8080

  • 212.237.5.209:443

  • 104.251.214.46:8080

  • 212.237.56.116:7080

  • 107.182.225.142:8080

  • 104.168.155.129:8080

  • 138.185.72.26:8080

  • 45.118.135.203:7080

  • 216.158.226.206:443

  • 103.75.201.2:443

  • 158.69.222.101:443

  • 178.63.25.185:443

eck1.plain
ecs1.plain

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • 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 use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 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\a9d2bcd6bcfd2621848a45a0e9cfc08d.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:1752
    • 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:1388
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\sun.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        PID:1048

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1388-59-0x00000000769D1000-0x00000000769D3000-memory.dmp

        memory/1388-65-0x0000000000180000-0x00000000001A8000-memory.dmp

        memory/1752-55-0x000000002FE41000-0x000000002FE44000-memory.dmp

        memory/1752-56-0x0000000071961000-0x0000000071963000-memory.dmp

        memory/1752-57-0x000000005FFF0000-0x0000000060000000-memory.dmp