Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Resubmissions

13/01/2025, 15:25

250113-st1kpawrdv 10

10/01/2025, 12:54

250110-p5j6asxjdk 10

28/12/2024, 02:09

241228-clcwnatnby 10

Analysis

  • max time kernel
    94s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2024, 02:09

General

  • Target

    224c3666515e1602d6a4c8f6802d8ad2c597951e50cf4938e5ddc849702f1bd0.exe

  • Size

    1.1MB

  • MD5

    c1ea7d9d2b92b29bb016dc0c82ce0136

  • SHA1

    0490c1a2a2ab084cb03bbb494454380eb0a4063f

  • SHA256

    224c3666515e1602d6a4c8f6802d8ad2c597951e50cf4938e5ddc849702f1bd0

  • SHA512

    51e7c868dd506de81112d18004f2dff73b0ef7a1b7614e94977c9e389919451a3c4bdda2668358999d490ca650a340305674d7c89212a33e8d111a8064a7a116

  • SSDEEP

    24576:U2G/nvxW3Ww0tLh6X9jiDf3b8goWoMSCUH0N:UbA30cQoSP

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 27 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.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Drops file in Windows directory 6 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 registry class 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 27 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 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\224c3666515e1602d6a4c8f6802d8ad2c597951e50cf4938e5ddc849702f1bd0.exe
    "C:\Users\Admin\AppData\Local\Temp\224c3666515e1602d6a4c8f6802d8ad2c597951e50cf4938e5ddc849702f1bd0.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\crtnet\U4fZxuOVYXKrCZIgxMyzABwsANpU.vbe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3324
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\crtnet\Bnw1HgIbKGac.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4248
        • C:\crtnet\hyperserversvc.exe
          "C:\crtnet\hyperserversvc.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:4184
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Pl0bH09tRv.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2340
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:1808
              • C:\Program Files\Windows NT\TableTextService\en-US\csrss.exe
                "C:\Program Files\Windows NT\TableTextService\en-US\csrss.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3900
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Common Files\Java\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:112
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Java\WmiPrvSE.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 "WmiPrvSEW" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Common Files\Java\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3376
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows NT\TableTextService\en-US\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3288
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows NT\TableTextService\en-US\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1332
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows NT\TableTextService\en-US\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2680
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 8 /tr "'C:\crtnet\SearchApp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4440
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\crtnet\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1820
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 8 /tr "'C:\crtnet\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1144
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1008
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2288
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Windows\DiagTrack\Settings\conhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3624
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Windows\DiagTrack\Settings\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4092
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 6 /tr "'C:\Windows\DiagTrack\Settings\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1968
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft\conhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3984
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:8
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5000
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Windows\Registration\CRMLog\conhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:436
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Windows\Registration\CRMLog\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4384
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 9 /tr "'C:\Windows\Registration\CRMLog\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\Oracle\Java\.oracle_jre_usage\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\All Users\Oracle\Java\.oracle_jre_usage\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1696
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\Oracle\Java\.oracle_jre_usage\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:652
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WaaSMedicAgentW" /sc MINUTE /mo 5 /tr "'C:\Windows\Prefetch\ReadyBoot\WaaSMedicAgent.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1164
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WaaSMedicAgent" /sc ONLOGON /tr "'C:\Windows\Prefetch\ReadyBoot\WaaSMedicAgent.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2652
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WaaSMedicAgentW" /sc MINUTE /mo 10 /tr "'C:\Windows\Prefetch\ReadyBoot\WaaSMedicAgent.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Pl0bH09tRv.bat

      Filesize

      225B

      MD5

      ffc50d4b6d671cade8aafd7923d432e9

      SHA1

      83936ad073a0eee67a764c01f3833a7d0577e366

      SHA256

      477031392ec4fb166e5d6d952afc938cea90b0d086a41d4ec7d8d8a36dcc4911

      SHA512

      7b39873fcb35e18d7796d83139beb99000384792534742d814c9aeb5f3e029e5868087a50459a672b9628da0126c4aa039efab347ae0cc6fd14961f900b874ad

    • C:\crtnet\Bnw1HgIbKGac.bat

      Filesize

      30B

      MD5

      ad864158aece2c49b735cb6ddb40c692

      SHA1

      42cff4692d777de8a6e5dc42a48b95a00a4f74d0

      SHA256

      d788ee93f4876edfdcc51052ee21680b067fee9071f2efa752608fe39af39c84

      SHA512

      df2ce6df2fc21d23d91f869729c1bb5fbde0079d015d1b44a2679861a30a18b373bcdffe6f399964577a2b8f566d5373958c82e0917aa838b2e3f5705dc8e034

    • C:\crtnet\U4fZxuOVYXKrCZIgxMyzABwsANpU.vbe

      Filesize

      195B

      MD5

      d1e9f1bc4219b36665be0abca3f62ad2

      SHA1

      9ebf784c32f63049b3e39681015ee78350e04ee2

      SHA256

      8736f9684770146460caaf01b7cc432b2dcf9faf5d398b27f9f58cd86d87e978

      SHA512

      aeda85a9a5548a6eb44eb92c9839aa98e3e9932d9d0deb6a4fa9ec603438c85b38c1ab295cd10035b54e65453dd19da685457c82241caa369551df0ec75b2787

    • C:\crtnet\hyperserversvc.exe

      Filesize

      828KB

      MD5

      915963963f2bfe83c2f1a3a50cf042ca

      SHA1

      5b7ccdc34d46ff3d25752ae9f73ae6649e9ef791

      SHA256

      28c32ebbf807cd3ed0a35ead7bef99665da102a85bdfe0f91cf7f92d167dfd40

      SHA512

      7509a3ba3258848851c5315eecb1105ec10018c1012c244531a6250bcab84196378bd1fa9374c92ee3fa66f96433ddd17929875f37d2b272a97389abb6aa39b4

    • memory/4184-12-0x00007FFB25323000-0x00007FFB25325000-memory.dmp

      Filesize

      8KB

    • memory/4184-13-0x0000000000970000-0x0000000000A46000-memory.dmp

      Filesize

      856KB