Analysis

  • max time kernel
    4294183s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20220310-en
  • submitted
    16/03/2022, 18:35

General

  • Target
    39453396c146b7898c15c2f8565b5bd5.dll
  • Size 736KB
  • Sample220316-w8cc7affe7
  • SHA256 363f0801aaa42660d6a041e7a7b137d752aae85bd87a15ca6f4c97dabd3ff9bc
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 45.76.1.145:443

  • 217.182.25.250:8080

  • 119.193.124.41:7080

  • 192.99.251.50:443

  • 146.59.226.45:443

  • 173.212.193.249:8080

  • 207.38.84.195:8080

  • 45.118.135.203:7080

  • 31.24.158.56:8080

  • 209.126.98.206:8080

  • 212.237.17.99:8080

  • 216.158.226.206:443

  • 50.30.40.196:8080

  • 82.165.152.127:8080

  • 159.8.59.82:8080

  • 107.182.225.142:8080

  • 110.232.117.186:8080

  • 72.15.201.15:8080

  • 5.9.116.246:8080

  • 79.172.212.216:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • 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\39453396c146b7898c15c2f8565b5bd5.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\39453396c146b7898c15c2f8565b5bd5.dll
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Cbzmnjczf\fsuz.twk"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1624

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1520-54-0x000007FEFC221000-0x000007FEFC223000-memory.dmp

        memory/1624-61-0x0000000000410000-0x0000000000445000-memory.dmp

        memory/1684-55-0x00000000761D1000-0x00000000761D3000-memory.dmp

        memory/1684-56-0x00000000002C0000-0x00000000002F5000-memory.dmp