Analysis

  • max time kernel
    92s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 01:21

General

  • Target

    b56d3e6d1b59e49bbec7d67b46efdabcd4f63113d4937e713c017a5c8307c1f9.exe

  • Size

    2.7MB

  • MD5

    22acd327c5273659a31e56d94cefed20

  • SHA1

    0c3534ab1f3f2fbc3b2410b50c0bd3450e8b7e20

  • SHA256

    b56d3e6d1b59e49bbec7d67b46efdabcd4f63113d4937e713c017a5c8307c1f9

  • SHA512

    046edff80da24dd5a8a4717c8f4059967faea2d82b45270e93c1386ca7ac27031aad61ce7552a26aef1ae1c59afad969602f1f72ae497817500ff6b43f605724

  • SSDEEP

    49152:fcg4fLmoCxQVw7OocLXGQ7xEnei4LnuINVRtEOmksWP1gPJ:fr4fLmdWzxLB7ineruitaRWmPJ

Malware Config

Signatures

  • DcRat

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

  • Process spawned unexpected child process 42 IoCs

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

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 42 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 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\b56d3e6d1b59e49bbec7d67b46efdabcd4f63113d4937e713c017a5c8307c1f9.exe
    "C:\Users\Admin\AppData\Local\Temp\b56d3e6d1b59e49bbec7d67b46efdabcd4f63113d4937e713c017a5c8307c1f9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\providerReviewperfsvc\82mN47a0TiFi3a9eGnk.vbe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\providerReviewperfsvc\jW8bFRH7MHNFa6gk2NSgaGKIpk.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3132
        • C:\providerReviewperfsvc\hyperIntoruntime.exe
          "C:\providerReviewperfsvc\hyperIntoruntime.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2232
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\kALdGv0AZV.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:5096
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:5092
              • C:\providerReviewperfsvc\unsecapp.exe
                "C:\providerReviewperfsvc\unsecapp.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4152
          • C:\Windows\SysWOW64\reg.exe
            reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
            4⤵
            • Modifies registry key
            PID:5068
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Mail\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:216
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3948
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Mail\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4220
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 5 /tr "'C:\Windows\IME\sysmon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:812
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Windows\IME\sysmon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2476
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 14 /tr "'C:\Windows\IME\sysmon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4404
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Legal\ENU\sihost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3028
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Legal\ENU\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1380
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Legal\ENU\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2592
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\providerReviewperfsvc\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3472
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\providerReviewperfsvc\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3040
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\providerReviewperfsvc\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1056
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Google\Update\Offline\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4836
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Update\Offline\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4700
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Google\Update\Offline\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4824
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Uninstall Information\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2208
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 7 /tr "'C:\Program Files\Uninstall Information\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4564
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\providerReviewperfsvc\unsecapp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4092
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\providerReviewperfsvc\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2516
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\providerReviewperfsvc\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3288
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2756
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1420
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4300
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Portable Devices\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1308
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Portable Devices\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4112
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1968
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4356
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4312
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\providerReviewperfsvc\taskhostw.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4572
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\providerReviewperfsvc\taskhostw.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3912
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 6 /tr "'C:\providerReviewperfsvc\taskhostw.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4812
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1932
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Default User\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4340
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4580
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "hyperIntoruntimeh" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Microsoft\hyperIntoruntime.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1864
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "hyperIntoruntime" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\hyperIntoruntime.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2316
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "hyperIntoruntimeh" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft\hyperIntoruntime.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2148
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 13 /tr "'C:\providerReviewperfsvc\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\providerReviewperfsvc\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2952
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\providerReviewperfsvc\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4972

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\kALdGv0AZV.bat

      Filesize

      202B

      MD5

      aef6c27b9ddbec7d1dd451fcdf278e22

      SHA1

      70ed3f3a9056c9a030deecedddf19f66fbd8705d

      SHA256

      5326ceb9124fa4884775e1374365d7f9968a45560a609193438ebde82d5fbf4b

      SHA512

      53937758c1ae26d1908ce32a55334f511acccd385ab385ee7d4c441a4594f3d04235ef3a45713ed4923883f788eef79d5bb2ff3ed8d08598b212cdac5f005991

    • C:\providerReviewperfsvc\82mN47a0TiFi3a9eGnk.vbe

      Filesize

      235B

      MD5

      fb11cc210ba0447a34647e724e8ab39d

      SHA1

      8d99ce75967a91b93d50d1125c2688aae2831318

      SHA256

      577cbff67180bfc384ac423878600c776a62e2c17d0a54bb5d84fb3f242eff7d

      SHA512

      5b920ec51d114db6ff6fec4893c438d26fc29d3f785a8976377ebdd2d6106ea3f114fbbc5ef1488baaefc202eb23c0c3c2bec2fa4a45439fb98d85e79be38046

    • C:\providerReviewperfsvc\hyperIntoruntime.exe

      Filesize

      1.2MB

      MD5

      ca3ae9ae64643d74d4eaf06f154f272a

      SHA1

      e0eaf5cb4e0281d0cd0efc33e5fad25c2449442d

      SHA256

      81c54e77b089f4e527ae6d671b3790721c9aa1984a79d9608032d33036727392

      SHA512

      5580a4329ca2eba7016f601ff39e0f76167c4baa09ce5c42d5e6f0d494629ce73e91d540b1e78dbb905bb7e71afd61612d64f3bba35461d91ab947568376e95a

    • C:\providerReviewperfsvc\jW8bFRH7MHNFa6gk2NSgaGKIpk.bat

      Filesize

      170B

      MD5

      4745423eb28e951e9b234c245830068f

      SHA1

      87240696a0553cb46197011e6b734cd21710691a

      SHA256

      f8fcb0384e78f0368c59200e3be9101a7eaafb5091db0a624d26b67d5d096b84

      SHA512

      ec7cfc4d61c2b054af2cd2156d18ad8dd0f682911a200284aa077d84cf9c9f050fda75f5cbc6e88273bc9b3e3f1c0cb85b52bb96ee5e8278a2781989808d2213

    • memory/1412-0-0x0000000000F10000-0x0000000001366000-memory.dmp

      Filesize

      4.3MB

    • memory/1412-10-0x0000000000F10000-0x0000000001366000-memory.dmp

      Filesize

      4.3MB

    • memory/2232-16-0x00000000005B0000-0x00000000006E8000-memory.dmp

      Filesize

      1.2MB

    • memory/2232-17-0x00000000027C0000-0x00000000027DC000-memory.dmp

      Filesize

      112KB

    • memory/2232-18-0x000000001B9A0000-0x000000001B9F0000-memory.dmp

      Filesize

      320KB

    • memory/2232-21-0x000000001B320000-0x000000001B328000-memory.dmp

      Filesize

      32KB

    • memory/2232-20-0x0000000002830000-0x000000000283E000-memory.dmp

      Filesize

      56KB

    • memory/2232-19-0x000000001B840000-0x000000001B856000-memory.dmp

      Filesize

      88KB

    • memory/2232-15-0x00007FFB0DAC3000-0x00007FFB0DAC5000-memory.dmp

      Filesize

      8KB