Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-12-2024 00:43

General

  • Target

    8e1ee1f14e7f0f3a15302fdf477709428f866f6b0564c5926e45801fdac49ffb.exe

  • Size

    1.9MB

  • MD5

    a5e07b2a4f147573af29f95a04721aec

  • SHA1

    6a695d721dc1b92123e83ab41c40e82306b6be70

  • SHA256

    8e1ee1f14e7f0f3a15302fdf477709428f866f6b0564c5926e45801fdac49ffb

  • SHA512

    89645a2a43e67750f9c2c0c44cdf8b1a4b079974bf9520fb15543250a265d28f0d884482e83ea44b04965fd1363f24cad861feeff3afbe9418ff0cf10d7543a9

  • SSDEEP

    49152:OB8cCZlABr+O8wBIDvaemSMu12H7RjOasNJUMnAt:Qw8BrH8wBIDvMSMYs7RqaM1n+

Malware Config

Signatures

  • DcRat

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

  • Dcrat family
  • Process spawned unexpected child process 18 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 18 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e1ee1f14e7f0f3a15302fdf477709428f866f6b0564c5926e45801fdac49ffb.exe
    "C:\Users\Admin\AppData\Local\Temp\8e1ee1f14e7f0f3a15302fdf477709428f866f6b0564c5926e45801fdac49ffb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2680
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\eX03NhjV5DmDXgmEJBYIbKym1tk9ltaXq7DymF87pXljgfjMIqb4fM9e.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\XcLkG07L1OjW1C8w3GaQ94rN1G.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\WinRAR.exe
          "C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850/Boot/Resources/bin/cache/archive/WinRAR.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2780
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1744
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1532
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1804
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/MSOCache/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:404
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1132
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2044
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2444
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2264
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2172
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2480
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:680
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1756
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1900
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\sppsvc.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1352
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Internet Explorer\it-IT\lsm.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1396
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\explorer.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1784
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Mail\ja-JP\lsass.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:856
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\WinRAR.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1616
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\7xlEEui827.bat"
            5⤵
              PID:2848
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:2912
                • C:\Windows\system32\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2268
                • C:\Program Files\Internet Explorer\it-IT\lsm.exe
                  "C:\Program Files\Internet Explorer\it-IT\lsm.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1048
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2180
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1932
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:768
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2884
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2076
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1904
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 6 /tr "'C:\Program Files\Internet Explorer\it-IT\lsm.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1864
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\it-IT\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2008
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 5 /tr "'C:\Program Files\Internet Explorer\it-IT\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:936
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\explorer.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2004
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\explorer.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1092
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\explorer.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:820
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\lsass.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1764
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\lsass.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2404
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\lsass.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2768
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\WinRAR.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1928
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "WinRAR" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\WinRAR.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1916
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 14 /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\WinRAR.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:288

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\7xlEEui827.bat

        Filesize

        176B

        MD5

        71e3f63e8c9a2bf73ebdc817617de864

        SHA1

        be6b4cb6a343d7f062b9cc140c9d071d0701a4e5

        SHA256

        b55770c070fa96961cac92c4cd068dcf9a1f0ca593af11cfd542c0d1b6756f7f

        SHA512

        e8b6c6a51c65c9cfe625b97b7d6c2ccbcb01ad6ea602bb172e4c1498178f01acfe95882b4ea915c097e755cbda4fdaca0582f8015083185471ce5351ffd651f7

      • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\XcLkG07L1OjW1C8w3GaQ94rN1G.bat

        Filesize

        135B

        MD5

        eda76d5b79521f2af415c07f8d3292f5

        SHA1

        f371598ca83a5b2b1e79fe35f052ca5134e99052

        SHA256

        29e743232a02a2884a527b15a5b6dc2965f79a889e2ea6741023638dea16d067

        SHA512

        4408863ebbf59d70e8e863158b0b3d0c595c1056aaf6037465b66fe6e9fe1921b645a9163791dbff50934fed6a26a6c601081d42a2adaf1729b00aed9b91df65

      • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_8712_1425929850\Boot\Resources\bin\cache\archive\eX03NhjV5DmDXgmEJBYIbKym1tk9ltaXq7DymF87pXljgfjMIqb4fM9e.vbe

        Filesize

        268B

        MD5

        3ae1e93b4e8716b41d2ac395329bbe31

        SHA1

        0acadab49e89a043789fac35dfb3267c1c21a942

        SHA256

        6f65996e5a373b155c086f74144ac09ecbdfcedf0acec4b0b111e90ca79703c3

        SHA512

        bafcb8f6cdf4c685893cff209bdcf2348ecbe31528b90f7bf4cf8591b80f59e0582cd59baf014f8f0413d1e8c41a6e6b5f6c8a41d383df02aaa1292d57776bc5

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\67MHYWPEH0YML9NAH4UO.temp

        Filesize

        7KB

        MD5

        253926c4a9f2acc96561471ca13f9277

        SHA1

        263a35d31e08b17398767d77b27870a248d576df

        SHA256

        b6c44d2170471ce99c46dcc481af820cb0c46585ec22c54a0ab2c946bbe7ecde

        SHA512

        d130a8d80f318a0a2c9fa3fb9d753ade1116348d85c8f3c4b5397ce8cff646c77f195a92efc0debe30796defdc42ffa1b9ca8aabf7be791b51db2334ebb8d72e

      • memory/1048-136-0x0000000000CC0000-0x0000000000EC0000-memory.dmp

        Filesize

        2.0MB

      • memory/1532-98-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

        Filesize

        32KB

      • memory/2264-96-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

        Filesize

        2.9MB

      • memory/2780-17-0x0000000000630000-0x000000000064C000-memory.dmp

        Filesize

        112KB

      • memory/2780-25-0x0000000000620000-0x000000000062E000-memory.dmp

        Filesize

        56KB

      • memory/2780-27-0x0000000000670000-0x0000000000678000-memory.dmp

        Filesize

        32KB

      • memory/2780-29-0x00000000007C0000-0x00000000007CC000-memory.dmp

        Filesize

        48KB

      • memory/2780-23-0x0000000000610000-0x000000000061C000-memory.dmp

        Filesize

        48KB

      • memory/2780-21-0x0000000000690000-0x00000000006A2000-memory.dmp

        Filesize

        72KB

      • memory/2780-19-0x0000000000650000-0x0000000000668000-memory.dmp

        Filesize

        96KB

      • memory/2780-15-0x0000000000600000-0x000000000060E000-memory.dmp

        Filesize

        56KB

      • memory/2780-13-0x00000000001B0000-0x00000000003B0000-memory.dmp

        Filesize

        2.0MB