Analysis

  • max time kernel
    93s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2024 17:28

General

  • Target

    TearWeapon.exe

  • Size

    1.1MB

  • MD5

    0c3a6b0190475de988ebaf0d788ae934

  • SHA1

    b611c57d25b733277fee96395bc2140c1b06b166

  • SHA256

    2d7c923ab1e4849fd6897512ea7763bbe2b8b12f58267d277ca7953f8fc08c86

  • SHA512

    b43c50a7e81924cd874c89a3084b42e45c41c95f1647da7848d901cc2279801c7f12b73fdd2c988bc1e528b63e249fac1941d3cc48aa699b6214247196a27d14

  • SSDEEP

    24576:U2G/nvxW3Ww0t16ZauSTtl1GuZZDZoL60:UbA301Tz1t2z

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.

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 2 IoCs
  • 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 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\TearWeapon.exe
    "C:\Users\Admin\AppData\Local\Temp\TearWeapon.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Containercomponentwebdriverdhcp\U3fWKkdcpG4DS7iPwgMqthhMVTa.vbe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:668
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Containercomponentwebdriverdhcp\3arP58.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2960
        • C:\Containercomponentwebdriverdhcp\windll.exe
          "C:\Containercomponentwebdriverdhcp\windll.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • 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:1744
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\BP6092Wsmc.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2836
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:4996
              • C:\Containercomponentwebdriverdhcp\RuntimeBroker.exe
                "C:\Containercomponentwebdriverdhcp\RuntimeBroker.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3192
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Mail\conhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1844
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2168
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Mail\conhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1364
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Containercomponentwebdriverdhcp\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2360
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Containercomponentwebdriverdhcp\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3544
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Containercomponentwebdriverdhcp\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3228
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 8 /tr "'C:\Users\Public\Downloads\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4020
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Public\Downloads\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3984
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Users\Public\Downloads\System.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 11 /tr "'C:\Program Files (x86)\Windows Mail\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4448
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4908
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Mail\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4984
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Application Data\TextInputHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3324
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Users\Default\Application Data\TextInputHost.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 "TextInputHostT" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Application Data\TextInputHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1900
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 5 /tr "'C:\Windows\Branding\Basebrd\fr-FR\upfc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1708
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Windows\Branding\Basebrd\fr-FR\upfc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:388
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 12 /tr "'C:\Windows\Branding\Basebrd\fr-FR\upfc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4216
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\StartMenuExperienceHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2276
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1928
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Saved Games\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4820
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Users\Default\Saved Games\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3856
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Saved Games\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Media Player\Media Renderer\StartMenuExperienceHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3452
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\Media Renderer\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2548
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Media Player\Media Renderer\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2088

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Containercomponentwebdriverdhcp\3arP58.bat

      Filesize

      47B

      MD5

      9c62a1550e3632fff65e95fc40f9a712

      SHA1

      49aed2c564039b88d36900fc64736a9194d86145

      SHA256

      491a4e0ade09299713f5fadf5a30ba3d2ab158ae268242a362eabdf5de24aca9

      SHA512

      ec281b04597cfe2228c9c920f4d9e610ac65c2e78c7dc4de8144a086b7bb095f05c6dabab418767f2259b5b3b9379eb7536bba3bd30ab684d3622d3aba5a8780

    • C:\Containercomponentwebdriverdhcp\U3fWKkdcpG4DS7iPwgMqthhMVTa.vbe

      Filesize

      214B

      MD5

      156e02341d13389aa844faf62d6edcbf

      SHA1

      b52920af0de575411dfe68f72f97a8a5be7f5da6

      SHA256

      fdd34a4d787fd3183985ec7487453fbda3b029cad7602a1fe55ff44485450346

      SHA512

      50df7ae65ff54507aa4afe46f2a40955c9fbc7aadad47ff805024274ec565449d7ee49dd8cc0725eb80bb52481b3358b678f17fa10114176638f6186ae64ff67

    • C:\Containercomponentwebdriverdhcp\windll.exe

      Filesize

      828KB

      MD5

      8afe4de25d433d6fdd54931b0c372833

      SHA1

      47b0de7556f4cca2e0fc7cbb444d00c90608af6d

      SHA256

      2faab8e27b7a41ffcc39f171b6b361ff2d5f818975ae1f25a8d28698a37ba3dc

      SHA512

      7b62e295084a71a934f4c7c61b92bbdf53bed7e0034e3f4a79ecab6bd56c50493b801e1c92a2c45daabee7708c9a4e08eddee54bc54f00d7d299ec95f2c39c8a

    • C:\Users\Admin\AppData\Local\Temp\BP6092Wsmc.bat

      Filesize

      217B

      MD5

      eabc9c7ff8d48f800662895b33ecaec3

      SHA1

      f6eaf13d6c4c2e641cf369ab655f14d9155a491e

      SHA256

      2e61443596f5671783273482e9c761f1f7510c9d1e8511dfecbe0c17fa456665

      SHA512

      c810d6e408b441ce0a81bcf4dc0127aa2502e852358ca3a4d0d99326ea2798312bf2f83b6a5fdba999d43ebaad8a7bcba887277f5ba977960b377bc200a716bc

    • memory/1744-12-0x00007FFBFA133000-0x00007FFBFA135000-memory.dmp

      Filesize

      8KB

    • memory/1744-13-0x0000000000D10000-0x0000000000DE6000-memory.dmp

      Filesize

      856KB