Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-11-2024 09:33

General

  • Target

    d4a31dc5744b566f097f20ee18f55acedec23a55117c88e3cca8d65d8f4020beN.exe

  • Size

    1.5MB

  • MD5

    f98b8d957e56a925bdfe1a9ed6182860

  • SHA1

    c30bd13e13837e96f0affe38dc3603d978c20d91

  • SHA256

    d4a31dc5744b566f097f20ee18f55acedec23a55117c88e3cca8d65d8f4020be

  • SHA512

    7766fe75347bca80d4754f1e7eebdafb134de91491e94f951b5a22ae27a62d7015f5c6c326aeb6ab65cd8f176e4f8ba355f11751b4685c5c1d60765526ed6111

  • SSDEEP

    24576:ceaMajUi+6C+mDjn7gbkFaSH7Wu4mIWGE1Sy/fBEXTHhaTEEER71RM4I13:ceaj9bHmMbkBHVdGE1Sy/ujhaIh+1

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 8 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Drops file in Drivers directory 1 IoCs
  • 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 26 IoCs
  • Drops file in Windows directory 20 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\d4a31dc5744b566f097f20ee18f55acedec23a55117c88e3cca8d65d8f4020beN.exe
    "C:\Users\Admin\AppData\Local\Temp\d4a31dc5744b566f097f20ee18f55acedec23a55117c88e3cca8d65d8f4020beN.exe"
    1⤵
    • Drops file in Drivers directory
    • 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:2588
    • C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe
      "C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4536
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Windows\addins\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3700
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\addins\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1800
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Windows\addins\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4528
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Windows\PLA\Rules\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4776
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\PLA\Rules\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1680
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Windows\PLA\Rules\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4520
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Windows\assembly\NativeImages_v2.0.50727_64\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4780
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\assembly\NativeImages_v2.0.50727_64\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:544
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Windows\assembly\NativeImages_v2.0.50727_64\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 10 /tr "'C:\Windows\ja-JP\sysmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4104
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Windows\ja-JP\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 14 /tr "'C:\Windows\ja-JP\sysmon.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 "unsecappu" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\microsoft shared\ClickToRun\unsecapp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:776
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Program Files\Common Files\microsoft shared\ClickToRun\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3760
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 6 /tr "'C:\Program Files\Common Files\microsoft shared\ClickToRun\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1500
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 11 /tr "'C:\Users\Public\Videos\MusNotification.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1832
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Users\Public\Videos\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4932
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Videos\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4488
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\MusNotification.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1672
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2484
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4404
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Users\Default\Start Menu\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Default\Start Menu\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3576
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Start Menu\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1396
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 13 /tr "'C:\Program Files\MSBuild\Microsoft\TextInputHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1668
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files\MSBuild\Microsoft\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 12 /tr "'C:\Program Files\MSBuild\Microsoft\TextInputHost.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 "explorere" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5088
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3596
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4828
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4632
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3504
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4836
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3068
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3264
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3964
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Mozilla Maintenance Service\MusNotification.exe

    Filesize

    1.5MB

    MD5

    5a5d888dad4ad7c11d2418a9b49fc07a

    SHA1

    27bcc83f6e89b812cec6304f9fff2e6104780a7c

    SHA256

    52a01842ca4b6ebfdea07cd68e8a1c3143b1c586cf1da088f4c8f8e9e8952107

    SHA512

    da29f272eed4e95d493538415daf79a86dec6d9bf49488be72d3970e668156739b8bc68084cf8385edd77df90298cd9905599792d8200c3e2cb1adc1a8e50ce4

  • C:\Program Files\Common Files\microsoft shared\ClickToRun\unsecapp.exe

    Filesize

    1.5MB

    MD5

    f98b8d957e56a925bdfe1a9ed6182860

    SHA1

    c30bd13e13837e96f0affe38dc3603d978c20d91

    SHA256

    d4a31dc5744b566f097f20ee18f55acedec23a55117c88e3cca8d65d8f4020be

    SHA512

    7766fe75347bca80d4754f1e7eebdafb134de91491e94f951b5a22ae27a62d7015f5c6c326aeb6ab65cd8f176e4f8ba355f11751b4685c5c1d60765526ed6111

  • C:\Program Files\Common Files\microsoft shared\ClickToRun\unsecapp.exe

    Filesize

    1.5MB

    MD5

    9a8d73f96da5ec67c435557576556ded

    SHA1

    136031c1898eaf57f0d2e12df05bc562625a04ba

    SHA256

    9b3760a344c1fdaa20b3f3aa26596f52ab8a27f5600107454e31578dbd43770f

    SHA512

    f195cfbdb7a5ec28a41f48255d138982297704d8e351ca1e29fb471cc63512560e0c8ca4a7a19a1e327c2bcc16456408c8ee0cafba7f1bd24634bfd7e8acfcd2

  • C:\Program Files\MSBuild\Microsoft\TextInputHost.exe

    Filesize

    1.5MB

    MD5

    c0144e843a57f8eb7cd2b5f47ffdf67a

    SHA1

    b1a3a9a76fe79e47e529cdf01caba194cf918891

    SHA256

    d8c40ae54b5d0cbc8b0cc6a4a075ab89e83633aa0f68cc9060a1962f3d4d8f4a

    SHA512

    ac063eadfd7015607faa5c28f791545459dcb80c8daa783f9add4eddca5695c5e06570f440a27862d06551871a09ea975a5f099d2654caf47e075033bd470362

  • C:\Recovery\WindowsRE\csrss.exe

    Filesize

    1.5MB

    MD5

    5f7175caa00fac1159bdabb703c38117

    SHA1

    34b4e240ac9bfa9e00713bdb65752c936d51a1ca

    SHA256

    07ca05fc74303ece5ef3a03d180f1709fe55bee2199540ce1fdc0b30dca7ed66

    SHA512

    ac2f18b96576aaa58b21320e017c2de1418d300a2c92e4f1b296d0c23caaca0848b626b7196107513a6248191d57a47b1b931ac2cdcbabed6b6b184c3463d937

  • C:\Users\Public\Videos\MusNotification.exe

    Filesize

    1.5MB

    MD5

    6eaabda1dcda8845de603fd9cc8c5632

    SHA1

    b8f0835bb45cef4b5caf49598c7ec924dd914c30

    SHA256

    1dda412314672b2eba97b9c33c9235ec1c84b8b9af96bad6579c4ef47b276b7c

    SHA512

    61488b2ae20158d8ace21282600000111aab818a1b9230a5da1754e9870208cd34f157eceb4db467b4741db605af28b840e6a2ecad5db33d4eea4509bb972fc0

  • memory/2588-7-0x000000001BE10000-0x000000001BE26000-memory.dmp

    Filesize

    88KB

  • memory/2588-24-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-0-0x00007FFC37113000-0x00007FFC37115000-memory.dmp

    Filesize

    8KB

  • memory/2588-9-0x000000001BE40000-0x000000001BE48000-memory.dmp

    Filesize

    32KB

  • memory/2588-12-0x000000001BEB0000-0x000000001BEBC000-memory.dmp

    Filesize

    48KB

  • memory/2588-11-0x000000001BE50000-0x000000001BE58000-memory.dmp

    Filesize

    32KB

  • memory/2588-15-0x000000001BEE0000-0x000000001BEEC000-memory.dmp

    Filesize

    48KB

  • memory/2588-14-0x000000001BED0000-0x000000001BED8000-memory.dmp

    Filesize

    32KB

  • memory/2588-13-0x000000001BEC0000-0x000000001BECE000-memory.dmp

    Filesize

    56KB

  • memory/2588-16-0x000000001C400000-0x000000001C408000-memory.dmp

    Filesize

    32KB

  • memory/2588-17-0x000000001C410000-0x000000001C41A000-memory.dmp

    Filesize

    40KB

  • memory/2588-20-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-21-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-8-0x000000001BE30000-0x000000001BE40000-memory.dmp

    Filesize

    64KB

  • memory/2588-5-0x0000000003250000-0x0000000003258000-memory.dmp

    Filesize

    32KB

  • memory/2588-6-0x000000001BCF0000-0x000000001BD00000-memory.dmp

    Filesize

    64KB

  • memory/2588-4-0x000000001BE60000-0x000000001BEB0000-memory.dmp

    Filesize

    320KB

  • memory/2588-145-0x00007FFC37113000-0x00007FFC37115000-memory.dmp

    Filesize

    8KB

  • memory/2588-3-0x000000001BCD0000-0x000000001BCEC000-memory.dmp

    Filesize

    112KB

  • memory/2588-169-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-170-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-2-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-205-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-1-0x0000000000F50000-0x00000000010DE000-memory.dmp

    Filesize

    1.6MB

  • memory/2588-267-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/2588-268-0x00007FFC37110000-0x00007FFC37BD1000-memory.dmp

    Filesize

    10.8MB

  • memory/4536-266-0x0000000000C70000-0x0000000000DFE000-memory.dmp

    Filesize

    1.6MB