Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/06/2024, 17:34

General

  • Target
    CHEAT roblox.exe
  • Size 10.8MB
  • Sample240626-v5hkcsvclg
  • SHA256 5e329adce16be480d39671fc56fcffbbb75e5efcf0a9114f95304f70c3367ae9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • DCRat payload 4 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 7 IoCs

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

  • Drops startup file 9 IoCs
  • Executes dropped EXE 9 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 12 IoCs
  • Modifies registry class 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CHEAT roblox.exe
    "C:\Users\Admin\AppData\Local\Temp\CHEAT roblox.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\C.exe
      "C:\Users\Admin\AppData\Local\Temp\C.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4492
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\BlockproviderComponentweb\LzYuX9pzQxeIw.vbe"
        3⤵
          PID:5020
      • C:\Users\Admin\AppData\Local\Temp\appdata.exe
        "C:\Users\Admin\AppData\Local\Temp\appdata.exe"
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3488
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\BlockproviderComponentweb\FlrU2Sw3hI88Kq0oMKFqlJBcKKk7.vbe"
          3⤵
            PID:4064
        • C:\Users\Admin\AppData\Local\Temp\temp.exe
          "C:\Users\Admin\AppData\Local\Temp\temp.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:724
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\BlockproviderComponentweb\rLN2CzC2BGDm0saFwwqZ.vbe"
            3⤵
              PID:1260
          • C:\Users\Admin\AppData\Local\Temp\system.exe
            "C:\Users\Admin\AppData\Local\Temp\system.exe"
            2⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:3472
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\ProviderwebRuntimebrokerDll\AzoUH9rmryPf4YVykgERWga1ZsG.vbe"
              3⤵
                PID:2804
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bat.bat" "
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:848
              • C:\Windows\system32\timeout.exe
                timeout 5
                3⤵
                • Delays execution with timeout.exe
                PID:3944
            • C:\Users\Admin\AppData\Local\Temp\kiler.exe
              "C:\Users\Admin\AppData\Local\Temp\kiler.exe"
              2⤵
              • Checks computer location settings
              • Drops startup file
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2952
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM wscript.exe
                3⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:4000
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM cmd.exe
                3⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:4572
              • C:\Windows\SysWOW64\taskkill.exe
                taskkill /f im Wireshark.exe
                3⤵
                • Kills process with taskkill
                PID:4060
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
                3⤵
                  PID:2932
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\kiler.exe
                  3⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:4972
                • C:\Users\Admin\AppData\Local\Temp\kiler.exe
                  "C:\Users\Admin\AppData\Local\Temp\kiler.exe"
                  3⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:116
                  • C:\Windows\SysWOW64\TASKKILL.exe
                    TASKKILL /F /IM wscript.exe
                    4⤵
                    • Kills process with taskkill
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3840
                  • C:\Windows\SysWOW64\TASKKILL.exe
                    TASKKILL /F /IM cmd.exe
                    4⤵
                    • Kills process with taskkill
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3128
            • C:\Users\Admin\AppData\Local\Temp\kiler.exe
              C:\Users\Admin\AppData\Local\Temp\kiler.exe
              1⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1936
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM wscript.exe
                2⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:1408
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM cmd.exe
                2⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:4620
            • C:\Windows\system32\taskmgr.exe
              "C:\Windows\system32\taskmgr.exe" /4
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:1592
            • C:\Users\Admin\AppData\Local\Temp\kiler.exe
              C:\Users\Admin\AppData\Local\Temp\kiler.exe
              1⤵
              • Checks computer location settings
              • Drops startup file
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4384
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM wscript.exe
                2⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:704
              • C:\Windows\SysWOW64\TASKKILL.exe
                TASKKILL /F /IM cmd.exe
                2⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:4236
              • C:\Windows\SysWOW64\taskkill.exe
                taskkill /f im Wireshark.exe
                2⤵
                • Kills process with taskkill
                PID:516
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
                2⤵
                  PID:1808
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\kiler.exe
                  2⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:876
                • C:\Users\Admin\AppData\Local\Temp\kiler.exe
                  "C:\Users\Admin\AppData\Local\Temp\kiler.exe"
                  2⤵
                  • Drops startup file
                  • Executes dropped EXE
                  • Adds Run key to start application
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3828
                  • C:\Windows\SysWOW64\TASKKILL.exe
                    TASKKILL /F /IM wscript.exe
                    3⤵
                    • Kills process with taskkill
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1476
                  • C:\Windows\SysWOW64\TASKKILL.exe
                    TASKKILL /F /IM cmd.exe
                    3⤵
                    • Kills process with taskkill
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3468

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    LzYuX9pzQxeIw.vbe

                    • Path C:\BlockproviderComponentweb\LzYuX9pzQxeIw.vbe
                    • Size 224B
                    • SHA256 b0ebc32dafa29a57b91c73ac0b89242da68d40cd470c262d4cc0361ba0cd8b95
                    • MD5 SHA1 SHA512

                    AzoUH9rmryPf4YVykgERWga1ZsG.vbe

                    • Path C:\ProviderwebRuntimebrokerDll\AzoUH9rmryPf4YVykgERWga1ZsG.vbe
                    • Size 227B
                    • SHA256 c21e88d44eb247ab02667e37de05d2e10ecc27bdfdc0f380778494570b5377db
                    • MD5 SHA1 SHA512

                    kiler.exe.log

                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\kiler.exe.log
                    • Size 319B
                    • SHA256 d182dd648c92e41cd62dccc65f130c07f0a96c03b32f907c3d1218e9aa5bda03
                    • MD5 SHA1 SHA512

                    rLN2CzC2BGDm0saFwwqZ.vbe

                    • Path C:\Users\Admin\AppData\Local\Temp\BlockproviderComponentweb\rLN2CzC2BGDm0saFwwqZ.vbe
                    • Size 214B
                    • SHA256 25f85a5bcaed5fadfba4b5368f224468e602e8991225b1fc2176cec26672cd81
                    • MD5 SHA1 SHA512

                    C.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\C.exe
                    • Size 3.1MB
                    • SHA256 fb1ad76b6875612578539b3bf70c93438165465dd6b4cd128a692cfed974e5f7
                    • MD5 SHA1 SHA512 SSDEEP

                    appdata.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\appdata.exe
                    • Size 3.1MB
                    • SHA256 0813184d94537f7f52e27a48733ce01ab3f8a40c807f8b1e3e876a0857270b98
                    • MD5 SHA1 SHA512 SSDEEP

                    bat.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\bat.bat
                    • Size 182B
                    • SHA256 1c10664cec33a5199bf1d088c87576056c0e2471f2c7e7424c73cc9f9fe495bc
                    • MD5 SHA1 SHA512

                    kiler.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\kiler.exe
                    • Size 249KB
                    • SHA256 77d822158965fe6c07d02d6fd22590f2fd5b67b0fb2f1f0b080bf8f627687c63
                    • MD5 SHA1 SHA512 SSDEEP

                    system.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\system.exe
                    • Size 3.1MB
                    • SHA256 7d0a7d85531fa4e95cad06073ce5fc918c1a1607f8b7c3da9ea0d765d3ab9dad
                    • MD5 SHA1 SHA512 SSDEEP

                    temp.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\temp.exe
                    • Size 3.1MB
                    • SHA256 3cb7f2e31e0d726f91631cdc0a44e8c97282e48a23a76521346df13f159d6e16
                    • MD5 SHA1 SHA512 SSDEEP

                    FlrU2Sw3hI88Kq0oMKFqlJBcKKk7.vbe

                    • Path C:\Users\Admin\AppData\Roaming\BlockproviderComponentweb\FlrU2Sw3hI88Kq0oMKFqlJBcKKk7.vbe
                    • Size 215B
                    • SHA256 32eaa92211f658207acdfa9cf61ffb6ec96330e6918d35943c3562a8323bcc37
                    • MD5 SHA1 SHA512

                    kiler.url

                    • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kiler.url
                    • Size 176B
                    • SHA256 b1168edad659c2a5f478ef7630a94ed9cd47e98ed32d91007669a0f3e2f591ce
                    • MD5 SHA1 SHA512