Analysis

  • max time kernel
    138s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    03/02/2022, 03:37

General

  • Target
    b0d3cc4e97d6f183a4c50a496de1ea84.dll
  • Size 979KB
  • Sample220203-d6g7jsdah2
  • SHA256 5caf9506f47b1bc9a261afb7c9aaf1c67cef314ccd6ad601e451793ff3edfb19
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 172.105.115.71:443

  • 185.184.25.78:8080

  • 191.252.103.16:80

  • 207.148.81.119:8080

  • 37.44.244.177:8080

  • 210.57.209.142:8080

  • 37.59.209.141:8080

  • 59.148.253.194:443

  • 159.69.237.188:443

  • 195.154.146.35:443

  • 203.153.216.46:443

  • 104.131.62.48:8080

  • 173.203.78.138:443

  • 217.182.143.207:443

  • 54.38.242.185:443

  • 116.124.128.206:8080

  • 54.37.106.167:8080

  • 195.77.239.39:8080

  • 85.214.67.203:8080

  • 198.199.98.78:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b0d3cc4e97d6f183a4c50a496de1ea84.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\b0d3cc4e97d6f183a4c50a496de1ea84.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3352
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b0d3cc4e97d6f183a4c50a496de1ea84.dll",DllRegisterServer
        3⤵
          PID:2072
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 1c69b4f367d2f37c422d19ee0abf1c12 kKQuL4rCv0+eUg6UcLRLcQ.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:3968
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:3652
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -p
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1360

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3352-130-0x0000000004B60000-0x0000000004B86000-memory.dmp