Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 11:51

General

  • Target

    56ab99637a82f98cec56b3318878bc99.exe

  • Size

    827KB

  • MD5

    56ab99637a82f98cec56b3318878bc99

  • SHA1

    9b5e3f53a3a7eeb37cf9d00e1787816e2e16fe0b

  • SHA256

    7ff470b90b9950a85f958412ecc2d71fe9f243bd3a4882a630745d8276a718d8

  • SHA512

    aacedc5ed4baf76c1551d865358d5c1662d2cac17bea9bbc35abecc6b145f4be50423b29c2e90cd0ff3e3d11874aee184b9d42c1f8a395f0fa2246c46bdba323

  • SSDEEP

    12288:ws2MkHy0AkGWpU5cv+ALaOBULNrBjHo0+ET08QzjrWZIESls:oMGyZkGWPlaOBULdBjiN8QsDz

Score
10/10

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 51 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
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 51 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 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\56ab99637a82f98cec56b3318878bc99.exe
    "C:\Users\Admin\AppData\Local\Temp\56ab99637a82f98cec56b3318878bc99.exe"
    1⤵
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\Help\Help\lsass.exe
      "C:\Windows\Help\Help\lsass.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1288
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Program Files\Uninstall Information\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2256
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Program Files\Uninstall Information\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2312
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2940
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2968
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\spoolsv.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 "SystemS" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1804
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\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 "IdleI" /sc MINUTE /mo 7 /tr "'C:\Program Files\Microsoft Office\Office14\1033\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2516
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office14\1033\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2536
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Program Files\Microsoft Office\Office14\1033\Idle.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 8 /tr "'C:\Windows\Help\Help\lsass.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:264
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\Help\Help\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:984
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Windows\Help\Help\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1192
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2904
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3056
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3020
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1832
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\taskhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:452
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:840
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Windows\tracing\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\tracing\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:904
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Windows\tracing\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:588
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Windows\security\audit\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2292
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\security\audit\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1956
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Windows\security\audit\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2336
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WmiPrvSE.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1960
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WmiPrvSE.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2412
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WmiPrvSE.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 "csrssc" /sc MINUTE /mo 11 /tr "'C:\Users\All Users\Application Data\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2284
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\All Users\Application Data\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2228
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\Application Data\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:680
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2468
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Default User\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2732
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:612
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Windows\Logs\HomeGroup\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\Logs\HomeGroup\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1788
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Windows\Logs\HomeGroup\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1564
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2264
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1656
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 14 /tr "'C:\Program Files\DVD Maker\ja-JP\lsm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2604
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files\DVD Maker\ja-JP\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 9 /tr "'C:\Program Files\DVD Maker\ja-JP\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:576
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1748
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Help\Help\lsass.exe

    Filesize

    827KB

    MD5

    56ab99637a82f98cec56b3318878bc99

    SHA1

    9b5e3f53a3a7eeb37cf9d00e1787816e2e16fe0b

    SHA256

    7ff470b90b9950a85f958412ecc2d71fe9f243bd3a4882a630745d8276a718d8

    SHA512

    aacedc5ed4baf76c1551d865358d5c1662d2cac17bea9bbc35abecc6b145f4be50423b29c2e90cd0ff3e3d11874aee184b9d42c1f8a395f0fa2246c46bdba323

  • memory/1288-43-0x00000000008F0000-0x00000000009C6000-memory.dmp

    Filesize

    856KB

  • memory/1740-0-0x000007FEF5A63000-0x000007FEF5A64000-memory.dmp

    Filesize

    4KB

  • memory/1740-1-0x0000000000830000-0x0000000000906000-memory.dmp

    Filesize

    856KB

  • memory/1740-2-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

    Filesize

    9.9MB

  • memory/1740-44-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

    Filesize

    9.9MB