Analysis

  • max time kernel
    158s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    04/02/2022, 18:43

General

  • Target
    99dbf7201ae46b447fab2b63039c1540.dll
  • Size 1.0MB
  • Sample220204-xcw86aeacj
  • SHA256 3a7782d419fb0701dc214319e7b9a2537f324c565835f3608d5264ffd4fbddb3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 174.136.15.27:8080

  • 185.122.58.89:443

  • 66.42.57.149:443

  • 159.69.237.188:443

  • 78.47.204.80:443

  • 54.38.242.185:443

  • 37.44.244.177:8080

  • 185.148.168.220:8080

  • 217.182.143.207:443

  • 198.199.98.78:8080

  • 139.196.72.155:8080

  • 59.148.253.194:443

  • 195.77.239.39:8080

  • 210.57.209.142:8080

  • 128.199.192.135:8080

  • 173.203.78.138:443

  • 62.171.178.147:8080

  • 85.214.67.203:8080

  • 185.148.168.15:8080

  • 191.252.103.16:80

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\99dbf7201ae46b447fab2b63039c1540.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\99dbf7201ae46b447fab2b63039c1540.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\99dbf7201ae46b447fab2b63039c1540.dll",DllRegisterServer
        3⤵
          PID:408
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:1824
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 1eea3c512ec5b39c34b82abf8b650406 YdQy/EtETkeKS1kKd4iOcQ.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:1996
    • 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:3900

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3588-130-0x00000000040B0000-0x00000000040D6000-memory.dmp