Analysis

  • max time kernel
    137s
  • max time network
    159s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    01/12/2021, 22:23

General

  • Target
    emotet_exe_e5_a7df28656f94c9d351d16b91a19c9f4743172e52d01f45b804b85c26a5ba0a21_2021-12-01__222205.exe.dll
  • Size 364KB
  • Sample211201-2ar9msbeg6
  • SHA256 a7df28656f94c9d351d16b91a19c9f4743172e52d01f45b804b85c26a5ba0a21
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 45.63.5.129:443

  • 128.199.192.135:8080

  • 51.178.61.60:443

  • 168.197.250.14:80

  • 177.72.80.14:7080

  • 51.210.242.234:8080

  • 142.4.219.173:8080

  • 78.47.204.80:443

  • 78.46.73.125:443

  • 37.44.244.177:8080

  • 37.59.209.141:8080

  • 191.252.103.16:80

  • 54.38.242.185:443

  • 85.214.67.203:8080

  • 217.182.143.207:443

  • 159.69.237.188:443

  • 210.57.209.142:8080

  • 54.37.228.122:443

  • 207.148.81.119:8080

  • 195.77.239.39:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_a7df28656f94c9d351d16b91a19c9f4743172e52d01f45b804b85c26a5ba0a21_2021-12-01__222205.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3252
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_a7df28656f94c9d351d16b91a19c9f4743172e52d01f45b804b85c26a5ba0a21_2021-12-01__222205.exe.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\emotet_exe_e5_a7df28656f94c9d351d16b91a19c9f4743172e52d01f45b804b85c26a5ba0a21_2021-12-01__222205.exe.dll",Control_RunDLL
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: RenamesItself
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Tkdcehgmoin\kzac.ape",HMvByyYTEuVeMGN
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:688
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Tkdcehgmoin\kzac.ape",Control_RunDLL
            5⤵
              PID:1532

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/688-124-0x0000000003260000-0x00000000033AA000-memory.dmp

          memory/1680-121-0x0000000002A70000-0x0000000002A97000-memory.dmp

          memory/2564-120-0x0000000002E60000-0x0000000002F0E000-memory.dmp