Analysis

  • max time kernel
    147s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    03/02/2022, 17:45

General

  • Target
    emotet_exe_e5_8b23f5b1bcd585ff6da73b2558ce998fc8d3931f200fcb30d7fd9cb5a617cc38_2022-02-03__174435.dll
  • Size 324KB
  • Sample220203-wbr3dacgem
  • SHA256 8b23f5b1bcd585ff6da73b2558ce998fc8d3931f200fcb30d7fd9cb5a617cc38
  • 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\emotet_exe_e5_8b23f5b1bcd585ff6da73b2558ce998fc8d3931f200fcb30d7fd9cb5a617cc38_2022-02-03__174435.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_8b23f5b1bcd585ff6da73b2558ce998fc8d3931f200fcb30d7fd9cb5a617cc38_2022-02-03__174435.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:684
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_8b23f5b1bcd585ff6da73b2558ce998fc8d3931f200fcb30d7fd9cb5a617cc38_2022-02-03__174435.dll",DllRegisterServer
        3⤵
          PID:4004
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:1220
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe c135f17a41479746698f3b3feb720202 MbD4W6gZ9EKr9u3ulAQW9Q.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:644
    • 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:220

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/684-130-0x0000000002E60000-0x0000000002E86000-memory.dmp