Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2025 05:52

General

  • Target

    8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe

  • Size

    324KB

  • MD5

    58a4b4564d298992a14dc479c94ed731

  • SHA1

    2d09a70500a7bfad8ff7b95513d560bbd307f6f0

  • SHA256

    8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd

  • SHA512

    96e79d860ab8e7c3c5614fc9775b12d0db2ef98cdf58e19fdb581d73ce396307fb6a99db04269d84fbe910ec67e0b00e7da1097b324f85fdc3c0135b9fb73cb0

  • SSDEEP

    6144:m40qH3b8I6ycSwrjuQGJoJyzzOe2OWsW9C0caTDbMNj:m41r/6yccr/VWBTk

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 45 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 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 45 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 18 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\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe
    "C:\Users\Admin\AppData\Local\Temp\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe
      "C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2592
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3328
  • 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:4212
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1672
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4840
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.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 "fontdrvhostf" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:832
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2900
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3240
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd8" /sc MINUTE /mo 6 /tr "'C:\Windows\Vss\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1240
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd" /sc ONLOGON /tr "'C:\Windows\Vss\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1704
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd8" /sc MINUTE /mo 13 /tr "'C:\Windows\Vss\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2424
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1380
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3244
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1812
  • 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:396
  • 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:2996
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2660
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd8" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Google\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1968
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd8" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Google\8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:964
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Users\Default\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Users\Default\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:232
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Users\Default\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3092
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1636
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3624
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2672
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Common Files\System\lsass.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3064
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\System\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Common Files\System\lsass.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 "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\Users\Public\Music\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:644
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Public\Music\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3036
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Music\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1808
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows NT\Accessories\es-ES\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2656
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\es-ES\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3396
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows NT\Accessories\es-ES\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1776
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\All Users\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3796
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1216
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Defender\fr-FR\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4980
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\fr-FR\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Defender\fr-FR\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:528
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\MusNotification.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "MusNotificationM" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Sidebar\MusNotification.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Recovery\WindowsRE\fontdrvhost.exe

    Filesize

    324KB

    MD5

    58a4b4564d298992a14dc479c94ed731

    SHA1

    2d09a70500a7bfad8ff7b95513d560bbd307f6f0

    SHA256

    8e15cc939ec94dd8ae9135aee60842a9eab07fea57263d067e3714ed383edccd

    SHA512

    96e79d860ab8e7c3c5614fc9775b12d0db2ef98cdf58e19fdb581d73ce396307fb6a99db04269d84fbe910ec67e0b00e7da1097b324f85fdc3c0135b9fb73cb0

  • memory/1816-0-0x00007FF96A283000-0x00007FF96A285000-memory.dmp

    Filesize

    8KB

  • memory/1816-1-0x0000000000E00000-0x0000000000E58000-memory.dmp

    Filesize

    352KB

  • memory/1816-4-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

    Filesize

    10.8MB

  • memory/1816-44-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

    Filesize

    10.8MB