Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    09/12/2021, 01:49

General

  • Target
    emotet_e4_269d1c7e269a65e41eabfebd31f8b69221ef8e8cf548bb85dc4232fb0eb2b233_2021-12-09__014815281431._docm.doc
  • Size 88KB
  • Sample211209-b8py3aaed4
  • SHA256 269d1c7e269a65e41eabfebd31f8b69221ef8e8cf548bb85dc4232fb0eb2b233
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 172.104.227.98:443

  • 31.207.89.74:8080

  • 46.55.222.11:443

  • 41.76.108.46:8080

  • 103.8.26.103:8080

  • 185.184.25.237:8080

  • 103.8.26.102:8080

  • 203.114.109.124:443

  • 45.118.115.99:8080

  • 178.79.147.66:8080

  • 58.227.42.236:80

  • 45.118.135.203:7080

  • 103.75.201.2:443

  • 195.154.133.20:443

  • 192.254.71.210:443

  • 45.142.114.231:8080

  • 212.237.5.209:443

  • 207.38.84.195:8080

  • 104.251.214.46:8080

  • 212.237.17.99:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 4 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\emotet_e4_269d1c7e269a65e41eabfebd31f8b69221ef8e8cf548bb85dc4232fb0eb2b233_2021-12-09__014815281431._docm.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:736
    • \??\c:\windows\explorer.exe
      c:\windows\explorer youPowKarol.hta
      2⤵
      • Process spawned unexpected child process
      PID:1396
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1496
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Documents\youPowKarol.hta"
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWow64\rundll32.exe
          "C:\Windows\SysWow64\rundll32.exe" c:\users\public\powTubeNext.jpg,doorKarolLoad
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1584
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "c:\users\public\powTubeNext.jpg",DllRegisterServer
            4⤵
            • Loads dropped DLL
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Windows\SysWOW64\rundll32.exe
              C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Tqcgarvy\wxgjnkpco.zya",NvrbZAwnw
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:916
              • C:\Windows\SysWOW64\rundll32.exe
                C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Tqcgarvy\wxgjnkpco.zya",DllRegisterServer
                6⤵
                • Blocklisted process makes network request
                • Suspicious behavior: EnumeratesProcesses
                PID:1820

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/736-70-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/736-61-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-62-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-63-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-64-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-65-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-66-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-67-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-68-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-55-0x0000000072BF1000-0x0000000072BF4000-memory.dmp

          memory/736-69-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-90-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/736-56-0x0000000070671000-0x0000000070673000-memory.dmp

          memory/736-59-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-60-0x0000000000643000-0x0000000000647000-memory.dmp

          memory/736-58-0x0000000076B81000-0x0000000076B83000-memory.dmp

          memory/1396-72-0x000007FEFC2A1000-0x000007FEFC2A3000-memory.dmp

          memory/1584-85-0x0000000010000000-0x0000000010027000-memory.dmp