Analysis

  • max time kernel
    101s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 09:59

General

  • Target

    terminal.exe

  • Size

    2.9MB

  • MD5

    200451026a7f2be02adb274026dc827a

  • SHA1

    655f5cff899d319975dfd43b1902e6318a0944f6

  • SHA256

    88953240e260b3ca53b4563afa657ee6d414b887a972e8862b12ca46e0a5853d

  • SHA512

    1054e3b258fab5f496cea9e156b0b17b9e5b1f4f5b049a4308df1b200d89534c88ec1ff11e6612a2b0961842984fe31d7d38b8077c14fd9bb388a03e7d0c3ac8

  • SSDEEP

    49152:1bA3PlN3nP+YscRfII1f8CReMT1Um7GWw/N0TOu09gqpBuuDqtmAP:1buN3nrsc5fdRfTr7GWw/ayl9RIuDqtZ

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.

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Drops file in Windows directory 5 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.

  • 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 6 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\terminal.exe
    "C:\Users\Admin\AppData\Local\Temp\terminal.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\containercomponentfontruntime\qhSOQkLJ6CCd.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\containercomponentfontruntime\XmZE9.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2876
        • C:\containercomponentfontruntime\portdrivernet.exe
          "C:\containercomponentfontruntime\portdrivernet.exe"
          4⤵
          • UAC bypass
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:568
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\DEoeECt7ly.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2504
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:1260
              • C:\Program Files (x86)\Microsoft Sync Framework\v1.0\csrss.exe
                "C:\Program Files (x86)\Microsoft Sync Framework\v1.0\csrss.exe"
                6⤵
                • UAC bypass
                • Executes dropped EXE
                • Checks whether UAC is enabled
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                • System policy modification
                PID:2360
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows NT\Accessories\es-ES\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1388
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\Accessories\es-ES\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1652
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows NT\Accessories\es-ES\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1044
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1720
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1856
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2276
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 5 /tr "'C:\Windows\fr-FR\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1564
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Windows\fr-FR\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2416
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 7 /tr "'C:\Windows\fr-FR\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1952
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Windows\Setup\State\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3068
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\Setup\State\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2368
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Windows\Setup\State\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1352
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Mail\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2448
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1712
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Mail\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:284
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\winlogon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2080
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2380
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\DEoeECt7ly.bat

      Filesize

      227B

      MD5

      048c649d4034210610cefdbd9227290a

      SHA1

      bb9010273db2c7e45c16a3d6ccd94435dd83967c

      SHA256

      6350e2c6a10d5e8b3820b2f62bcfff6e655791e3f0844e5d36e4aa0c9533151e

      SHA512

      628c65573b4c6dbdf83c65e05df9e16fc358a2ab1d8e8d7531dc051758177b8efe70bbdaee7f19b91e3a786639d31a26176c1979ab2a15df1f7c2b293e3368b4

    • C:\containercomponentfontruntime\XmZE9.bat

      Filesize

      52B

      MD5

      7f19dde92420e1112fb9ef25b0c56e38

      SHA1

      9da19ead2fccc172a39171f026eed2623229d2b7

      SHA256

      697ad5724417463eb1e37c6e173bc24ca4416b3c064036b06b5c05bc6c33742a

      SHA512

      6a184f7e5fb90e302fbdc92eff043b84cab803e741abea94a7a06e1c3f502babd60b95e75b705ae8cd27430dc0bf3873d4ff9b719ea28648f50e080ebef79268

    • C:\containercomponentfontruntime\qhSOQkLJ6CCd.vbe

      Filesize

      211B

      MD5

      8ac77355599fe3bfb19415a591c62148

      SHA1

      ca5b38c7525b454144d6dfb681a7d5b7c8afd807

      SHA256

      993cc8867a308e64cb94b89206c6632cc1e160a5de372e29686b86a7eb9b318b

      SHA512

      38c7bce3490a171bda26f482e1ef50cdd5cbe8f59f9ce5bafbc452fb8f3b878b9e72a3358489765e8b30ca19e8dba9cb9ffed92f24267a7ba0aab5311416b2b6

    • \containercomponentfontruntime\portdrivernet.exe

      Filesize

      2.7MB

      MD5

      718e0805d80d7e040a20b5aeda4f877d

      SHA1

      c83f6d2c1ec158e20af2bf54f4d7aeb465cbe58e

      SHA256

      cb1189a7b059346d31cca7596357609eb52e9e518ef59a7659a0e061602f7c0b

      SHA512

      d3854ad4a29732f802a5087c320ca8b85cf46a818f5d283ab612254e9b495e4019c58cc1c8fe7d9f369e070a025d367d6226cf92343b1cafdc8f4aab9fb38cc9

    • memory/568-22-0x0000000000780000-0x0000000000788000-memory.dmp

      Filesize

      32KB

    • memory/568-23-0x00000000007F0000-0x0000000000802000-memory.dmp

      Filesize

      72KB

    • memory/568-16-0x0000000000270000-0x0000000000278000-memory.dmp

      Filesize

      32KB

    • memory/568-17-0x0000000000370000-0x0000000000380000-memory.dmp

      Filesize

      64KB

    • memory/568-18-0x0000000000760000-0x0000000000776000-memory.dmp

      Filesize

      88KB

    • memory/568-19-0x0000000000390000-0x0000000000398000-memory.dmp

      Filesize

      32KB

    • memory/568-20-0x0000000000790000-0x000000000079A000-memory.dmp

      Filesize

      40KB

    • memory/568-21-0x00000000007A0000-0x00000000007F6000-memory.dmp

      Filesize

      344KB

    • memory/568-14-0x0000000000240000-0x000000000024E000-memory.dmp

      Filesize

      56KB

    • memory/568-15-0x0000000000250000-0x000000000026C000-memory.dmp

      Filesize

      112KB

    • memory/568-24-0x00000000008A0000-0x00000000008A8000-memory.dmp

      Filesize

      32KB

    • memory/568-25-0x00000000008B0000-0x00000000008B8000-memory.dmp

      Filesize

      32KB

    • memory/568-26-0x00000000008C0000-0x00000000008CC000-memory.dmp

      Filesize

      48KB

    • memory/568-27-0x00000000008D0000-0x00000000008DE000-memory.dmp

      Filesize

      56KB

    • memory/568-28-0x00000000008E0000-0x00000000008EC000-memory.dmp

      Filesize

      48KB

    • memory/568-29-0x00000000008F0000-0x00000000008FA000-memory.dmp

      Filesize

      40KB

    • memory/568-30-0x0000000000900000-0x000000000090C000-memory.dmp

      Filesize

      48KB

    • memory/568-13-0x00000000003A0000-0x0000000000654000-memory.dmp

      Filesize

      2.7MB

    • memory/2360-50-0x00000000011C0000-0x0000000001474000-memory.dmp

      Filesize

      2.7MB

    • memory/2360-51-0x0000000000ED0000-0x0000000000EE2000-memory.dmp

      Filesize

      72KB