Analysis

  • max time kernel
    120s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    21-06-2024 01:09

General

  • Target

    2e2163fd9a3cf6e23a7b9509e64a877e5b6c5abf8537fe738466f83112539d17.exe

  • Size

    827KB

  • MD5

    33ab5cbb351fa75f5d4f3e3b5aa064a9

  • SHA1

    ac9bcf69aecff1ff5d4108df204a4a2b572e1eef

  • SHA256

    2e2163fd9a3cf6e23a7b9509e64a877e5b6c5abf8537fe738466f83112539d17

  • SHA512

    4e62650b49ae86c152463742a04980627d54dc8efc7dd3443625210d13db815f279989d846bbca4376cd127595403cfd53160c0fa78f3d198bf400da5655a98e

  • SSDEEP

    12288:6HggW+CSPHjaphInx+6XlRitt/tNRWCkQu:6AgW+C4jaqZlR4/jRWCkT

Score
10/10

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 18 IoCs

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

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 9 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\2e2163fd9a3cf6e23a7b9509e64a877e5b6c5abf8537fe738466f83112539d17.exe
    "C:\Users\Admin\AppData\Local\Temp\2e2163fd9a3cf6e23a7b9509e64a877e5b6c5abf8537fe738466f83112539d17.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\qdkxfnloT6.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2232
        • C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\lsass.exe
          "C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\lsass.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:2676
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2768
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2912
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2596
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2480
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2820
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 8 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2500
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2640
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2528
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2504
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 6 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2984
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2996
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2452
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:656
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:560
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1272
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 9 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2700
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2692
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 6 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2860

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\spoolsv.exe
      Filesize

      827KB

      MD5

      33ab5cbb351fa75f5d4f3e3b5aa064a9

      SHA1

      ac9bcf69aecff1ff5d4108df204a4a2b572e1eef

      SHA256

      2e2163fd9a3cf6e23a7b9509e64a877e5b6c5abf8537fe738466f83112539d17

      SHA512

      4e62650b49ae86c152463742a04980627d54dc8efc7dd3443625210d13db815f279989d846bbca4376cd127595403cfd53160c0fa78f3d198bf400da5655a98e

    • C:\Users\Admin\AppData\Local\Temp\qdkxfnloT6.bat
      Filesize

      237B

      MD5

      8500d2174c92ea85887e3e77dd6b1648

      SHA1

      5fd29cd3781ea64e433207e9fdc21c631afd13e3

      SHA256

      3c25276e1accbe5abd1c5e10fd2ee91b4f34c2ef27f29b0af4b83ef54bac527c

      SHA512

      e428a5fe52be3d0ee495f004afae72d25f873f0464fb3cb3da0e58bef9a43776fb40642b6e902d0c33bed7ce9c38835e86ddb241182e7a4fbacc31094f9a0d25

    • memory/2676-23-0x0000000000B00000-0x0000000000BD6000-memory.dmp
      Filesize

      856KB

    • memory/3016-0-0x000007FEF5623000-0x000007FEF5624000-memory.dmp
      Filesize

      4KB

    • memory/3016-1-0x0000000000010000-0x00000000000E6000-memory.dmp
      Filesize

      856KB

    • memory/3016-2-0x000007FEF5620000-0x000007FEF600C000-memory.dmp
      Filesize

      9.9MB

    • memory/3016-20-0x000007FEF5620000-0x000007FEF600C000-memory.dmp
      Filesize

      9.9MB