Analysis

  • max time kernel
    4294179s
  • max time network
    199s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    16/03/2022, 15:25

General

  • Target
    bf42eef9036a453f0a58918a6c7a7f8d.dll
  • Size 664KB
  • Sample220316-stmntsdcdk
  • SHA256 d4344b62033ec894cbc7b589e2b9e09b5e72cddf41f9401ccca3e368d0500c5f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 165.22.61.235:443

  • 121.78.112.42:8080

  • 216.10.251.121:8080

  • 195.77.239.39:8080

  • 195.154.146.35:443

  • 68.183.93.250:443

  • 139.196.72.155:8080

  • 194.9.172.107:8080

  • 196.44.98.190:8080

  • 128.199.192.135:8080

  • 5.56.132.177:8080

  • 78.46.73.125:443

  • 87.106.97.83:7080

  • 66.42.57.149:443

  • 37.44.244.177:8080

  • 190.90.233.66:443

  • 203.153.216.46:443

  • 207.148.81.119:8080

  • 103.41.204.169:8080

  • 104.131.62.48:8080

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\bf42eef9036a453f0a58918a6c7a7f8d.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:588
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\bf42eef9036a453f0a58918a6c7a7f8d.dll
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Mnypfvp\fswhdtjfsib.lkk"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:940

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/588-54-0x000007FEFB561000-0x000007FEFB563000-memory.dmp

        memory/940-62-0x00000000003D0000-0x0000000000404000-memory.dmp

        memory/940-64-0x00000000003F7000-0x0000000000404000-memory.dmp

        memory/1456-55-0x0000000074F31000-0x0000000074F33000-memory.dmp

        memory/1456-56-0x00000000002C0000-0x00000000002F4000-memory.dmp