Analysis

  • max time kernel
    141s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    23/04/2022, 21:07

General

  • Target
    emotet_exe_e5_c936ba4d48cc7be323d4c0d2866440f75da152dee0ec2d2ad19f79169deaf28a_2022-04-23__210632.dll
  • Size 660KB
  • Sample220423-zyandsafdp
  • SHA256 c936ba4d48cc7be323d4c0d2866440f75da152dee0ec2d2ad19f79169deaf28a
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 80.211.107.116:8080

  • 188.166.229.148:443

  • 121.78.112.42:8080

  • 185.148.168.15:8080

  • 210.57.209.142:8080

  • 194.9.172.107:8080

  • 139.196.72.155:8080

  • 128.199.192.135:8080

  • 62.171.178.147:8080

  • 103.133.214.242:8080

  • 104.131.62.48:8080

  • 103.41.204.169:8080

  • 54.37.106.167:8080

  • 217.182.143.207:443

  • 185.148.168.220:8080

  • 202.134.4.210:7080

  • 198.199.98.78:8080

  • 5.56.132.177:8080

  • 66.42.57.149:443

  • 78.46.73.125:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_c936ba4d48cc7be323d4c0d2866440f75da152dee0ec2d2ad19f79169deaf28a_2022-04-23__210632.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4200
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_c936ba4d48cc7be323d4c0d2866440f75da152dee0ec2d2ad19f79169deaf28a_2022-04-23__210632.dll
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Drkfip\cbrdxcfo.usa"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:1948

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cbrdxcfo.usa

        • Path C:\Windows\SysWOW64\Drkfip\cbrdxcfo.usa
        • Size 660KB
        • SHA256 c936ba4d48cc7be323d4c0d2866440f75da152dee0ec2d2ad19f79169deaf28a
        • MD5 SHA1 SHA512 SSDEEP

        memory/1948-136-0x0000000002D30000-0x0000000002D57000-memory.dmp

        memory/4204-131-0x0000000002C20000-0x0000000002C47000-memory.dmp