Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2025 00:39

General

  • Target

    nixware.exe

  • Size

    31.6MB

  • MD5

    d0781ada3269f987c794530ff0506cd7

  • SHA1

    adf41b03527fa9689951f17f0ae78f9de857a294

  • SHA256

    f33a361478ccaf4357b7b8eb2ba785669cff5c22325de0287430e75d5a8826c8

  • SHA512

    f86e0a0fa7c9979b73dbb74611704a29e7e585a2b23ef64ac268ad19b6d1dd446b1d822384ff1a24d1dd4de48da3b5d2952c7e80dcc2072d29e12fcd7103faa1

  • SSDEEP

    24576:wTbBv5rUWed4A4kaY+Rv9HpWYAzA3K0UYGDRMo4I+J6UPoy5CTEjroZKpazt1tff:iBNpApOVz5CTEjroZm47SFdVDHNhsZ

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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 4 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 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 8 IoCs
  • Suspicious use of WriteProcessMemory 28 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\nixware.exe
    "C:\Users\Admin\AppData\Local\Temp\nixware.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\MsBrowserhostMonitor\EElezqrlKIBLzguwSkxb8radmQlbhJP.vbe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\MsBrowserhostMonitor\g6ESkS5wG8dtposA7kriVV.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2328
        • C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe
          "C:\MsBrowserhostMonitor/MscomponentdriverCrt.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1968
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Media Player\uk-UA\System.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2900
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MsBrowserhostMonitor\sppsvc.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4308
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MsBrowserhostMonitor\wininit.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1300
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Security\BrowserCore\en-US\smss.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1252
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MsBrowserhostMonitor\TrustedInstaller.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4764
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:5076
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\iyX6UYvse3.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3188
            • C:\Windows\system32\chcp.com
              chcp 65001
              6⤵
                PID:3948
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                6⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:4072
              • C:\Program Files\Windows Media Player\uk-UA\System.exe
                "C:\Program Files\Windows Media Player\uk-UA\System.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:3988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Media Player\uk-UA\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1680
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\uk-UA\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4920
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Media Player\uk-UA\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3220
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\MsBrowserhostMonitor\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2860
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MsBrowserhostMonitor\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4496
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\MsBrowserhostMonitor\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3328
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\MsBrowserhostMonitor\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\MsBrowserhostMonitor\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1636
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\MsBrowserhostMonitor\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\smss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5116
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4752
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3672
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 6 /tr "'C:\MsBrowserhostMonitor\TrustedInstaller.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1244
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstaller" /sc ONLOGON /tr "'C:\MsBrowserhostMonitor\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1048
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 10 /tr "'C:\MsBrowserhostMonitor\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1748
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "MscomponentdriverCrtM" /sc MINUTE /mo 10 /tr "'C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4616
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "MscomponentdriverCrt" /sc ONLOGON /tr "'C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "MscomponentdriverCrtM" /sc MINUTE /mo 12 /tr "'C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MsBrowserhostMonitor\EElezqrlKIBLzguwSkxb8radmQlbhJP.vbe

      Filesize

      221B

      MD5

      1fc18ecdd0bacfef8e8363f6e558dbca

      SHA1

      9e25188c95f726964293d073b989ef6fdd38c151

      SHA256

      0cebba0cbbc37afdfd275fe4810f12b397c2160d0019c034bfd7c136f33760e5

      SHA512

      00dc44db67e1f7238ac5ca7e5f4b538c41fd23d157df0857bbcd50a2831cc8d60bd39e42aafd3f6ab6939e1d60567b9f1ba42c8a201171d148bbe39e677bb01e

    • C:\MsBrowserhostMonitor\MscomponentdriverCrt.exe

      Filesize

      31.1MB

      MD5

      ef755a7324e1a7d594675ddd9e2ad0f9

      SHA1

      2d098612aa16794f226e4c7049679af44144f860

      SHA256

      4f24e181932c4c8982ce9a05b9069003b73dda0f7bfcb5ccc7d1f460765ef5dd

      SHA512

      7e0cc803665e8dcfacdf10afa18bc3b75ad5e36d6481b9a6a0c0ed4b40ba4c729f875241a5464fd921580bfbcbc0b0c35e16df92cafacee0384a467f3c58e47d

    • C:\MsBrowserhostMonitor\g6ESkS5wG8dtposA7kriVV.bat

      Filesize

      100B

      MD5

      30cc56b4eec9e7a19401c3fe72824ade

      SHA1

      b780a8440717e489064633abd7b3dfea8b332978

      SHA256

      e4a31a425727324182e21b1850441c2a64f062ada252c69d96034de4af07f938

      SHA512

      c17441b536aa4e272d074899f211988020eaae65a2d8cb3b37d6df77d4a6d7a9cfd96b544e1169ae62b8da494f1d16f1989ffeacabcc321b3a2d09f7d139aec2

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      d85ba6ff808d9e5444a4b369f5bc2730

      SHA1

      31aa9d96590fff6981b315e0b391b575e4c0804a

      SHA256

      84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

      SHA512

      8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      d28a889fd956d5cb3accfbaf1143eb6f

      SHA1

      157ba54b365341f8ff06707d996b3635da8446f7

      SHA256

      21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

      SHA512

      0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      cadef9abd087803c630df65264a6c81c

      SHA1

      babbf3636c347c8727c35f3eef2ee643dbcc4bd2

      SHA256

      cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

      SHA512

      7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r3o4xeli.uqj.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\iyX6UYvse3.bat

      Filesize

      182B

      MD5

      59dfe8132238730d777cc584ff116a52

      SHA1

      46c6e08cf4b28351edf3e1dc878cb0c954a257fc

      SHA256

      81a4772acdb42ba4422b338c0d4c8ae937dd2594d329d2dc78499ac3ceb20d6d

      SHA512

      45fa202ff817ad1b1853fde9762201e631c0f708fa81cca37d56a7283544e1882febaf517e0af0c29a5efe56fe618cd9786daaa0f85581db0f4ad7be6082bcb0

    • memory/1300-38-0x000001D97EA00000-0x000001D97EA22000-memory.dmp

      Filesize

      136KB

    • memory/1968-13-0x0000000000D60000-0x0000000000F3A000-memory.dmp

      Filesize

      1.9MB

    • memory/1968-22-0x00000000030E0000-0x00000000030EC000-memory.dmp

      Filesize

      48KB

    • memory/1968-20-0x000000001BAA0000-0x000000001BAB8000-memory.dmp

      Filesize

      96KB

    • memory/1968-18-0x000000001BAF0000-0x000000001BB40000-memory.dmp

      Filesize

      320KB

    • memory/1968-17-0x0000000003190000-0x00000000031AC000-memory.dmp

      Filesize

      112KB

    • memory/1968-15-0x0000000001620000-0x000000000162E000-memory.dmp

      Filesize

      56KB

    • memory/1968-12-0x00007FFAC84B3000-0x00007FFAC84B5000-memory.dmp

      Filesize

      8KB

    • memory/3988-113-0x000000001B8D0000-0x000000001B9D2000-memory.dmp

      Filesize

      1.0MB

    • memory/3988-114-0x000000001C4A0000-0x000000001C5B5000-memory.dmp

      Filesize

      1.1MB