Analysis

  • max time kernel
    119s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    29/03/2022, 17:29

General

  • Target
    ETfQrfyVK.dll
  • Size 584KB
  • Sample220329-v2jm9aghg2
  • SHA256 cbcede8f11cd11a000a3cacdb2f90dad851c5bf2f044c35f39da9ce39923ca7e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 159.203.141.156:8080

  • 79.143.187.147:443

  • 189.232.46.161:443

  • 51.91.76.89:8080

  • 119.193.124.41:7080

  • 176.104.106.96:8080

  • 1.234.21.73:7080

  • 82.165.152.127:8080

  • 167.172.253.162:8080

  • 153.126.146.25:7080

  • 216.158.226.206:443

  • 103.75.201.2:443

  • 188.44.20.25:443

  • 101.50.0.91:8080

  • 159.65.88.10:8080

  • 176.56.128.118:443

  • 72.15.201.15:8080

  • 203.114.109.124:443

  • 212.237.17.99:8080

  • 192.99.251.50:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ETfQrfyVK.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\ETfQrfyVK.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:484
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:3508
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
    1⤵
    • Modifies data under HKEY_USERS
    PID:4296

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/484-135-0x0000000000FC0000-0x0000000000FE4000-memory.dmp