Analysis

  • max time kernel
    135s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27/01/2022, 09:21

General

  • Target
    Koas4G8ca1vF4YJ.dll
  • Size 496KB
  • Sample220127-lbbqaaader
  • SHA256 de4c6eb49a8f28de8997698a22465f1dec2c294470ed4915ce85b3339a52c607
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 89.32.148.223:443

  • 188.40.137.206:8080

  • 45.118.135.203:7080

  • 164.68.99.3:8080

  • 162.214.50.39:7080

  • 45.142.114.231:8080

  • 45.176.232.124:443

  • 207.38.84.195:8080

  • 104.168.155.129:8080

  • 176.104.106.96:8080

  • 203.114.109.124:443

  • 41.76.108.46:8080

  • 178.79.147.66:8080

  • 58.227.42.236:80

  • 51.38.71.0:443

  • 138.185.72.26:8080

  • 107.182.225.142:8080

  • 81.0.236.90:443

  • 185.157.82.211:8080

  • 103.8.26.103:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Koas4G8ca1vF4YJ.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\Koas4G8ca1vF4YJ.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Koas4G8ca1vF4YJ.dll",DllRegisterServer
        3⤵
          PID:708

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3504-116-0x00000000043C0000-0x00000000043E5000-memory.dmp