Analysis

  • max time kernel
    129s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    08/02/2022, 15:53

General

  • Target
    1565918d6cda9580d74d57d0f10f99e4.dll
  • Size 369KB
  • Sample220208-tbmfsaaabl
  • SHA256 eb8380806d9b6adeafaf0e81be1800cdfd61a09053b4f5fb8a935d6d4ad37e6c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 185.248.140.40:443

  • 8.9.11.48:443

  • 200.17.134.35:7080

  • 207.38.84.195:8080

  • 79.172.212.216:8080

  • 45.176.232.124:443

  • 45.118.135.203:7080

  • 162.243.175.63:443

  • 110.232.117.186:8080

  • 103.75.201.4:443

  • 195.154.133.20:443

  • 160.16.102.168:80

  • 164.68.99.3:8080

  • 131.100.24.231:80

  • 216.158.226.206:443

  • 159.89.230.105:443

  • 178.79.147.66:8080

  • 178.128.83.165:80

  • 212.237.5.209:443

  • 82.165.152.127:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Drops file in Windows directory 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1565918d6cda9580d74d57d0f10f99e4.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\1565918d6cda9580d74d57d0f10f99e4.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\1565918d6cda9580d74d57d0f10f99e4.dll",DllRegisterServer
        3⤵
          PID:4580
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3036
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4264

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/1208-130-0x0000000010000000-0x0000000010028000-memory.dmp

          memory/3036-132-0x000001B3BB730000-0x000001B3BB740000-memory.dmp

          memory/3036-133-0x000001B3BB790000-0x000001B3BB7A0000-memory.dmp

          memory/3036-134-0x000001B3BE470000-0x000001B3BE474000-memory.dmp