Analysis

  • max time kernel
    83s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-02-2025 07:49

General

  • Target

    0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe

  • Size

    2.5MB

  • MD5

    7e12764a3dcdb61235625a662d5fb300

  • SHA1

    0e3047af2c786c489a49a9728ace7e5058f3e2f7

  • SHA256

    0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740

  • SHA512

    f6be4e8e5028947c784a65e58dc1f124378b85869e153922849e7c0421ca6b140c496f83b14fd99ad85a793527d3d1a7170630f803a6d6c2baabe5e7fcef755b

  • SSDEEP

    49152:cTZXGGaXwpWG3wn8OTvgOP2Z4Ya+pHUvTzYUNBrQYn102K:AZXGGaXjGgJGHa+teTfQY10

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 36 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 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 36 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 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\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe
    "C:\Users\Admin\AppData\Local\Temp\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe"
    1⤵
    • UAC bypass
    • 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:2404
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\wRhF7PcXPa.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2524
        • C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\spoolsv.exe
          "C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\spoolsv.exe"
          3⤵
          • UAC bypass
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • System policy modification
          PID:916
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2560
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2576
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\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 "dwmd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1352
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2400
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1112
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2904
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\All Users\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2144
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2628
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1052
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N0" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1500
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1648
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N0" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2804
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Documents\WMIADAP.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2280
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAP" /sc ONLOGON /tr "'C:\Users\Public\Documents\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2032
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 8 /tr "'C:\Users\Public\Documents\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2648
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1196
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\spoolsv.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 "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:596
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\Windows\assembly\GAC_64\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\assembly\GAC_64\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3008
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\Windows\assembly\GAC_64\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Journal\Templates\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2212
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files\Windows Journal\Templates\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2268
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Journal\Templates\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1416
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Users\Default User\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2228
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Default User\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2512
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\explorer.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 "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files\DVD Maker\en-US\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1784
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\DVD Maker\en-US\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:784
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Program Files\DVD Maker\en-US\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1616
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2484
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:272

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740N.exe

      Filesize

      2.5MB

      MD5

      7e12764a3dcdb61235625a662d5fb300

      SHA1

      0e3047af2c786c489a49a9728ace7e5058f3e2f7

      SHA256

      0fa17a49135e93d8a45c9eca2033e45c3afcc748d452047daa90cfae57a30740

      SHA512

      f6be4e8e5028947c784a65e58dc1f124378b85869e153922849e7c0421ca6b140c496f83b14fd99ad85a793527d3d1a7170630f803a6d6c2baabe5e7fcef755b

    • C:\Users\Admin\AppData\Local\Temp\wRhF7PcXPa.bat

      Filesize

      239B

      MD5

      b0c9f630eff24385b6166a85cf0dbd7f

      SHA1

      c0b6c93fbe1988cfdc0cc3cb93fc3e57a7ae1d84

      SHA256

      037c8de20d180a6351ca8c021d8d1aa2a64e671205a37f9e05aac37c754b2a30

      SHA512

      4057e857a692520a35d6af582bb6f046a1e056b314fc07f33340d3570b6f409f4d3ae4f6010b361fc15916f307cb6b81575ecc58e84fa69413beff1a0918794d

    • memory/916-52-0x0000000000800000-0x0000000000812000-memory.dmp

      Filesize

      72KB

    • memory/916-51-0x0000000000C50000-0x0000000000CA6000-memory.dmp

      Filesize

      344KB

    • memory/916-50-0x0000000000CA0000-0x0000000000F30000-memory.dmp

      Filesize

      2.6MB

    • memory/2404-6-0x00000000023D0000-0x00000000023E6000-memory.dmp

      Filesize

      88KB

    • memory/2404-14-0x000000001AA40000-0x000000001AA4C000-memory.dmp

      Filesize

      48KB

    • memory/2404-7-0x000000001A870000-0x000000001A878000-memory.dmp

      Filesize

      32KB

    • memory/2404-8-0x000000001A880000-0x000000001A88A000-memory.dmp

      Filesize

      40KB

    • memory/2404-9-0x000000001A890000-0x000000001A8E6000-memory.dmp

      Filesize

      344KB

    • memory/2404-10-0x000000001A8E0000-0x000000001A8E8000-memory.dmp

      Filesize

      32KB

    • memory/2404-11-0x000000001A8F0000-0x000000001A902000-memory.dmp

      Filesize

      72KB

    • memory/2404-13-0x000000001AA30000-0x000000001AA38000-memory.dmp

      Filesize

      32KB

    • memory/2404-12-0x000000001AA20000-0x000000001AA28000-memory.dmp

      Filesize

      32KB

    • memory/2404-0-0x000007FEF5473000-0x000007FEF5474000-memory.dmp

      Filesize

      4KB

    • memory/2404-15-0x000000001AA50000-0x000000001AA5E000-memory.dmp

      Filesize

      56KB

    • memory/2404-16-0x000000001AA60000-0x000000001AA6A000-memory.dmp

      Filesize

      40KB

    • memory/2404-17-0x000000001AA70000-0x000000001AA7C000-memory.dmp

      Filesize

      48KB

    • memory/2404-5-0x0000000000AA0000-0x0000000000AA8000-memory.dmp

      Filesize

      32KB

    • memory/2404-46-0x000007FEF5470000-0x000007FEF5E5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2404-4-0x0000000000A80000-0x0000000000A9C000-memory.dmp

      Filesize

      112KB

    • memory/2404-3-0x0000000000A70000-0x0000000000A7E000-memory.dmp

      Filesize

      56KB

    • memory/2404-2-0x000007FEF5470000-0x000007FEF5E5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2404-1-0x0000000000AD0000-0x0000000000D60000-memory.dmp

      Filesize

      2.6MB