Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2025 16:17

General

  • Target

    d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe

  • Size

    2.3MB

  • MD5

    465c263dd263abe9b54f1514ae40f005

  • SHA1

    55b176f6b878e38f809c63b15408c5f76438398a

  • SHA256

    d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8125d1274046b69b7dae

  • SHA512

    c15e107b267aad8e17acb275ac6eda8b829ed5aa9b3c451cb8810b7e993b674acf2821337482424adec25d366e37c6708dd14bfa7876ffca1faa28a1fdbbd2f2

  • SSDEEP

    49152:cXyFqpEX5DJ+8WLlEPeZUaPSzes33Ll4EPx79QCKZLwV6:ACqpmX+plEPys37bRQ

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 39 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 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 39 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 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\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe
    "C:\Users\Admin\AppData\Local\Temp\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe"
    1⤵
    • Checks computer location settings
    • 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:4856
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\9yBQ5K2f83.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:404
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:4360
        • C:\Program Files\7-Zip\Lang\sihost.exe
          "C:\Program Files\7-Zip\Lang\sihost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1672
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 13 /tr "'C:\Program Files\7-Zip\Lang\sihost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:452
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Lang\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4400
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 5 /tr "'C:\Program Files\7-Zip\Lang\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1308
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Program Files\7-Zip\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1904
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4524
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Program Files\7-Zip\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2164
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Mail\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1564
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Mail\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:944
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Mail\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3212
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8d" /sc MINUTE /mo 7 /tr "'C:\Windows\L2Schemas\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4700
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8" /sc ONLOGON /tr "'C:\Windows\L2Schemas\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5116
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8d" /sc MINUTE /mo 14 /tr "'C:\Windows\L2Schemas\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5088
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Windows\fr-FR\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4244
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\fr-FR\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Windows\fr-FR\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2388
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\Registry.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:808
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4104
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 11 /tr "'C:\Program Files\Common Files\microsoft shared\Source Engine\SearchApp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1624
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files\Common Files\microsoft shared\Source Engine\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4512
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\microsoft shared\Source Engine\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1172
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows NT\TableTextService\en-US\unsecapp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Program Files\Windows NT\TableTextService\en-US\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3556
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows NT\TableTextService\en-US\unsecapp.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 "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files\Microsoft Office\root\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3484
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\root\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4548
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files\Microsoft Office\root\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2604
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 8 /tr "'C:\Windows\Containers\serviced\SearchApp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4204
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Windows\Containers\serviced\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1844
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 8 /tr "'C:\Windows\Containers\serviced\SearchApp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2828
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4628
    • 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:4344
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Users\Default User\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1460
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8d" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Defender\it-IT\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4172
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\it-IT\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1436
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8d" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Defender\it-IT\d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Users\Admin\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5032
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Admin\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3908

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\9yBQ5K2f83.bat

      Filesize

      203B

      MD5

      f73c899c6a7c596ec54743fc1c3be8e9

      SHA1

      032e4f5863c71193c3963654eb1a004b4c902ea6

      SHA256

      c83d9aaa4b5b68fdf5f3cd176226120c10bc625368bedbd52ea47f137c60731b

      SHA512

      57e840b3538ba4b1ec273e604a0cd0af1399380548a827623d5630494c5e59bfc155159cfe22d23e2d43446ee0ab885196d69c20e911a8442ea84324e7de8d93

    • C:\Windows\fr-FR\Idle.exe

      Filesize

      2.3MB

      MD5

      465c263dd263abe9b54f1514ae40f005

      SHA1

      55b176f6b878e38f809c63b15408c5f76438398a

      SHA256

      d39e417bda2e1e9b7f79fa8e974fdc6e06e82d3969eb8125d1274046b69b7dae

      SHA512

      c15e107b267aad8e17acb275ac6eda8b829ed5aa9b3c451cb8810b7e993b674acf2821337482424adec25d366e37c6708dd14bfa7876ffca1faa28a1fdbbd2f2

    • memory/1672-49-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

      Filesize

      72KB

    • memory/1672-48-0x000000001B420000-0x000000001B476000-memory.dmp

      Filesize

      344KB

    • memory/4856-5-0x000000001B2A0000-0x000000001B2B6000-memory.dmp

      Filesize

      88KB

    • memory/4856-4-0x000000001B2F0000-0x000000001B340000-memory.dmp

      Filesize

      320KB

    • memory/4856-6-0x000000001B850000-0x000000001B8A6000-memory.dmp

      Filesize

      344KB

    • memory/4856-7-0x000000001B2C0000-0x000000001B2D2000-memory.dmp

      Filesize

      72KB

    • memory/4856-11-0x000000001B9C0000-0x000000001B9CC000-memory.dmp

      Filesize

      48KB

    • memory/4856-10-0x000000001B8B0000-0x000000001B8B8000-memory.dmp

      Filesize

      32KB

    • memory/4856-9-0x000000001B8A0000-0x000000001B8AE000-memory.dmp

      Filesize

      56KB

    • memory/4856-8-0x000000001C190000-0x000000001C6B8000-memory.dmp

      Filesize

      5.2MB

    • memory/4856-0-0x00007FFA367A3000-0x00007FFA367A5000-memory.dmp

      Filesize

      8KB

    • memory/4856-43-0x00007FFA367A0000-0x00007FFA37261000-memory.dmp

      Filesize

      10.8MB

    • memory/4856-3-0x0000000002860000-0x000000000287C000-memory.dmp

      Filesize

      112KB

    • memory/4856-2-0x00007FFA367A0000-0x00007FFA37261000-memory.dmp

      Filesize

      10.8MB

    • memory/4856-1-0x0000000000420000-0x000000000067C000-memory.dmp

      Filesize

      2.4MB