Analysis

  • max time kernel
    118s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-12-2024 00:40

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 9 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.

  • Modifies system certificate store 2 TTPs 2 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:2776
    • 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:2684
      • 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:2760
        • 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:2596
          • 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:1940
          • 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:2500
          • 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:916
          • 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:1000
          • 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:928
          • 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:944
          • 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:1520
          • 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:2196
          • 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:2004
          • 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:2360
          • 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:1540
          • 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:1816
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Google\Temp\sppsvc.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1368
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Public\Favorites\taskhost.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:3052
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Microsoft Office\Office14\1033\wininit.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1792
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1584
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Media Player\Idle.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2688
          • 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:1012
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\NN5QM7akQ8.bat"
            5⤵
              PID:2460
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:1992
                • C:\Windows\system32\w32tm.exe
                  w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                  6⤵
                    PID:1524
                  • C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe
                    "C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2068
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Google\Temp\sppsvc.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2952
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Temp\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2852
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Google\Temp\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2864
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Favorites\taskhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2876
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Users\Public\Favorites\taskhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2892
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Favorites\taskhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1312
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\Program Files\Microsoft Office\Office14\1033\wininit.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2956
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office14\1033\wininit.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1108
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\Program Files\Microsoft Office\Office14\1033\wininit.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3020
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:332
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2492
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2080
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Media Player\Idle.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2204
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\Idle.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2400
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Media Player\Idle.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2124
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 11 /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:2284
        • 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:1836
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 9 /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:1692

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\NN5QM7akQ8.bat

          Filesize

          246B

          MD5

          b671b36ba7356222b54d28b1fdb3c19a

          SHA1

          6735a0cc243c7a043342053fe1edfd80c3e71358

          SHA256

          dbde0fb59016cd3244a90d5ca6a051e23d22befc21ca394811338b68e3fb4f8c

          SHA512

          e9ab4da905c9087c02642e630eb87769284acbfa824d6249d823bb424437d2df3a2c9c3a3f8dcf656e9fc2508080a6112acf9e2c10124b4543a3631de8a63c56

        • 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\590aee7bdd69b59b.customDestinations-ms

          Filesize

          7KB

          MD5

          334170e2517d6cd48324257f8cfdf515

          SHA1

          94821d06c1f69664ccdc54722ed1784c517fcc6e

          SHA256

          f3b9f1fcfea1f8de86684652c7e95e0b3a29cfefc8586d572ce53003fa9710a3

          SHA512

          96114a1f91204ad82a3843f9b447f1ec6e3b4605d4ce7e26e26e7e9c5a68de1bddec6aabb1e6fbf1ad1733ffb41c086fc7321e7b939f5cdadbc4e607082942ff

        • memory/944-133-0x0000000002230000-0x0000000002238000-memory.dmp

          Filesize

          32KB

        • memory/1540-111-0x000000001B610000-0x000000001B8F2000-memory.dmp

          Filesize

          2.9MB

        • memory/2068-136-0x0000000000E40000-0x0000000001040000-memory.dmp

          Filesize

          2.0MB

        • memory/2596-17-0x0000000000540000-0x000000000055C000-memory.dmp

          Filesize

          112KB

        • memory/2596-25-0x0000000000530000-0x000000000053E000-memory.dmp

          Filesize

          56KB

        • memory/2596-27-0x00000000005A0000-0x00000000005A8000-memory.dmp

          Filesize

          32KB

        • memory/2596-29-0x00000000009E0000-0x00000000009EC000-memory.dmp

          Filesize

          48KB

        • memory/2596-23-0x0000000000520000-0x000000000052C000-memory.dmp

          Filesize

          48KB

        • memory/2596-21-0x0000000000580000-0x0000000000592000-memory.dmp

          Filesize

          72KB

        • memory/2596-19-0x0000000000560000-0x0000000000578000-memory.dmp

          Filesize

          96KB

        • memory/2596-15-0x0000000000510000-0x000000000051E000-memory.dmp

          Filesize

          56KB

        • memory/2596-13-0x0000000000A40000-0x0000000000C40000-memory.dmp

          Filesize

          2.0MB