Analysis

  • max time kernel
    38s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 17:10

General

  • Target
    x0cc0e5fa5668ca92027c35b2cfc1e01b8bc7bd2923483a7a512ae923b1acd173.exe
  • Size 1.7MB
  • Sample260709-vp3klae15z
  • SHA256 0cc0e5fa5668ca92027c35b2cfc1e01b8bc7bd2923483a7a512ae923b1acd173
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 24 IoCs

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Process spawned unexpected child process 23 IoCs

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

  • UAC bypass 3 TTPs 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 5 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 23 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • System policy modification 1 TTPs 3 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\x0cc0e5fa5668ca92027c35b2cfc1e01b8bc7bd2923483a7a512ae923b1acd173.exe
    "C:\Users\Admin\AppData\Local\Temp\x0cc0e5fa5668ca92027c35b2cfc1e01b8bc7bd2923483a7a512ae923b1acd173.exe"
    1⤵
    • Family: DcRat
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:2864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3152
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4976
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2288
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\wininit.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4784
  • C:\Recovery\WindowsRE\csrss.exe
    "C:\Recovery\WindowsRE\csrss.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5528
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5468
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\Windows.old\fontdrvhost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1888
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows.old\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5972
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Windows.old\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3268
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Sidebar\System.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5400
  • C:\Windows.old\fontdrvhost.exe
    "C:\Windows.old\fontdrvhost.exe"
    1⤵
      PID:5920
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\System.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:6036
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Sidebar\System.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1764
    • C:\Program Files (x86)\Windows Media Player\uk-UA\wininit.exe
      "C:\Program Files (x86)\Windows Media Player\uk-UA\wininit.exe"
      1⤵
        PID:900
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\ctfmon.exe'" /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:828
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\ctfmon.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6284
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\ctfmon.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3980
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Common Files\Microsoft Shared\DAO\csrss.exe'" /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1432
      • C:\Program Files\Windows Sidebar\System.exe
        "C:\Program Files\Windows Sidebar\System.exe"
        1⤵
          PID:6664
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Microsoft Shared\DAO\csrss.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:7520
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Common Files\Microsoft Shared\DAO\csrss.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1752
        • C:\Recovery\WindowsRE\ctfmon.exe
          "C:\Recovery\WindowsRE\ctfmon.exe"
          1⤵
            PID:2820
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "SecurityHealthSystrayS" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\SecurityHealthSystray.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6668
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "SecurityHealthSystray" /sc ONLOGON /tr "'C:\Users\Default User\SecurityHealthSystray.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7584
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "SecurityHealthSystrayS" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\SecurityHealthSystray.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3500
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Windows.old\dllhost.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4908
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:200

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                csrss.exe

                • Path C:\Recovery\WindowsRE\csrss.exe
                • Size 1.7MB
                • SHA256 0cc0e5fa5668ca92027c35b2cfc1e01b8bc7bd2923483a7a512ae923b1acd173
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/2864-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

                memory/2864-1-0x0000000005320000-0x000000000559C000-memory.dmp

                memory/2864-2-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-4-0x0000000005090000-0x000000000530A000-memory.dmp

                memory/2864-3-0x00000000055A0000-0x0000000005B5A000-memory.dmp

                memory/2864-5-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-13-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-10-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-98-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-128-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-132-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-130-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-126-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-124-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-122-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-120-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-118-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-116-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-114-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-112-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-110-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-108-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-106-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-104-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-102-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-100-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-96-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-94-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-92-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-90-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-88-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-86-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-84-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-82-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-80-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-78-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-74-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-72-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-70-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-68-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-66-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-64-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-62-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-59-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-77-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-57-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-55-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-51-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-49-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-45-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-43-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-42-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-39-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-35-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-33-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-31-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-29-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-28-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-23-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-21-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-19-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-17-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-15-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-7-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-54-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-47-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-60-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-37-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-25-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-12-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-6-0x0000000005090000-0x0000000005304000-memory.dmp

                memory/2864-1990-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-1989-0x00000000748C2000-0x00000000748C3000-memory.dmp

                memory/2864-5229-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-5230-0x0000000004B30000-0x0000000004B4C000-memory.dmp

                memory/2864-5231-0x0000000004B60000-0x0000000004BB0000-memory.dmp

                memory/2864-5233-0x00000000064B0000-0x00000000064C0000-memory.dmp

                memory/2864-5232-0x0000000004BC0000-0x0000000004BC8000-memory.dmp

                memory/2864-5236-0x0000000006530000-0x0000000006540000-memory.dmp

                memory/2864-5235-0x00000000064F0000-0x00000000064F8000-memory.dmp

                memory/2864-5234-0x0000000006510000-0x0000000006526000-memory.dmp

                memory/2864-5237-0x0000000006580000-0x000000000658A000-memory.dmp

                memory/2864-5238-0x00000000068B0000-0x00000000068BC000-memory.dmp

                memory/2864-5239-0x00000000068C0000-0x00000000068D2000-memory.dmp

                memory/2864-5240-0x00000000068F0000-0x0000000006E1C000-memory.dmp

                memory/2864-5241-0x0000000006E80000-0x0000000006E8C000-memory.dmp

                memory/2864-5242-0x0000000006E90000-0x0000000006E9C000-memory.dmp

                memory/2864-5245-0x0000000007270000-0x000000000727C000-memory.dmp

                memory/2864-5244-0x0000000007260000-0x0000000007268000-memory.dmp

                memory/2864-5243-0x0000000007250000-0x000000000725A000-memory.dmp

                memory/2864-5246-0x00000000072A0000-0x0000000007332000-memory.dmp

                memory/2864-5247-0x0000000007360000-0x000000000736C000-memory.dmp

                memory/2864-5249-0x0000000007380000-0x00000000073E6000-memory.dmp

                memory/2864-5250-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-5251-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-6724-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-7180-0x00000000748B0000-0x000000007506C000-memory.dmp

                memory/2864-7361-0x00000000748B0000-0x000000007506C000-memory.dmp