Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 00:15

General

  • Target

    6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe

  • Size

    2.5MB

  • MD5

    be9712de7e19243e35aa7ce6e2e23345

  • SHA1

    ac38c04570e5cd80627c28fa9fb5be0965f0f7c6

  • SHA256

    6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9

  • SHA512

    5a3178d5dce31eb0f64ffa104d17a7165775acfc78efa7f459e777ea56a005152f3b424532c6736f439bde45d2fd750f72583ba631e3d49a9eb8c2c6fc6542ae

  • SSDEEP

    49152:WnYLYb30luEfXmrkLbZZ0McjfzJ47720B4ZjYsYt54AjaTWXHtL:WnSYovmrkLbEjrJ477KZjkX4nTWXHtL

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 27 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • 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
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 27 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe
    "C:\Users\Admin\AppData\Local\Temp\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2936
    • C:\Recovery\WindowsRE\sppsvc.exe
      "C:\Recovery\WindowsRE\sppsvc.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:3556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 8 /tr "'C:\Users\Public\AccountPictures\sihost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Users\Public\AccountPictures\sihost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:316
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 6 /tr "'C:\Users\Public\AccountPictures\sihost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\MusNotification.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3496
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:992
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1412
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Security\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3948
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files\Windows Security\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4020
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Security\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2344
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b96" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4944
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:460
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b96" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4760
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4448
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4220
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b96" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\regid.1991-06.com.microsoft\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1904
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9" /sc ONLOGON /tr "'C:\Users\All Users\regid.1991-06.com.microsoft\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.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 "6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b96" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\regid.1991-06.com.microsoft\6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3332
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4000
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2788
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4668
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Security\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3200
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files\Windows Security\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Security\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3656
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3724
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:64

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Recovery\WindowsRE\OfficeClickToRun.exe

    Filesize

    2.5MB

    MD5

    be9712de7e19243e35aa7ce6e2e23345

    SHA1

    ac38c04570e5cd80627c28fa9fb5be0965f0f7c6

    SHA256

    6bcef1348babeda5a1a126d6d076b2ab3bf793ec07da7aba3df963cb8ddad1b9

    SHA512

    5a3178d5dce31eb0f64ffa104d17a7165775acfc78efa7f459e777ea56a005152f3b424532c6736f439bde45d2fd750f72583ba631e3d49a9eb8c2c6fc6542ae

  • memory/2936-10-0x000000001C280000-0x000000001C2D6000-memory.dmp

    Filesize

    344KB

  • memory/2936-3-0x000000001B9F0000-0x000000001B9FE000-memory.dmp

    Filesize

    56KB

  • memory/2936-12-0x000000001C2E0000-0x000000001C2F2000-memory.dmp

    Filesize

    72KB

  • memory/2936-4-0x000000001BA10000-0x000000001BA2C000-memory.dmp

    Filesize

    112KB

  • memory/2936-5-0x000000001C0D0000-0x000000001C120000-memory.dmp

    Filesize

    320KB

  • memory/2936-6-0x000000001BA30000-0x000000001BA38000-memory.dmp

    Filesize

    32KB

  • memory/2936-7-0x000000001C260000-0x000000001C276000-memory.dmp

    Filesize

    88KB

  • memory/2936-8-0x000000001BAB0000-0x000000001BAB8000-memory.dmp

    Filesize

    32KB

  • memory/2936-13-0x000000001CAB0000-0x000000001CFD8000-memory.dmp

    Filesize

    5.2MB

  • memory/2936-0-0x00007FFA73F03000-0x00007FFA73F05000-memory.dmp

    Filesize

    8KB

  • memory/2936-11-0x000000001C2D0000-0x000000001C2D8000-memory.dmp

    Filesize

    32KB

  • memory/2936-2-0x00007FFA73F00000-0x00007FFA749C1000-memory.dmp

    Filesize

    10.8MB

  • memory/2936-9-0x000000001C3A0000-0x000000001C3AA000-memory.dmp

    Filesize

    40KB

  • memory/2936-16-0x000000001C330000-0x000000001C33C000-memory.dmp

    Filesize

    48KB

  • memory/2936-19-0x000000001C360000-0x000000001C36C000-memory.dmp

    Filesize

    48KB

  • memory/2936-18-0x000000001C350000-0x000000001C35A000-memory.dmp

    Filesize

    40KB

  • memory/2936-17-0x000000001C340000-0x000000001C34E000-memory.dmp

    Filesize

    56KB

  • memory/2936-15-0x000000001C320000-0x000000001C328000-memory.dmp

    Filesize

    32KB

  • memory/2936-14-0x000000001C310000-0x000000001C318000-memory.dmp

    Filesize

    32KB

  • memory/2936-1-0x0000000000C60000-0x0000000000EF2000-memory.dmp

    Filesize

    2.6MB

  • memory/2936-49-0x00007FFA73F00000-0x00007FFA749C1000-memory.dmp

    Filesize

    10.8MB

  • memory/3556-50-0x0000000003530000-0x0000000003542000-memory.dmp

    Filesize

    72KB