Resubmissions

08-12-2024 01:23

241208-br3tlavkct 10

08-12-2024 01:17

241208-bnw7mstrgy 10

Analysis

  • max time kernel
    90s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 01:23

General

  • Target

    PlagueCrack.exe

  • Size

    726KB

  • MD5

    2163c9e0594f85f2088c2d20d17ffe4d

  • SHA1

    f86e2843a28743422b01873f074b6cfa1421656c

  • SHA256

    8870af0fd4d3c26a84b1eb1cd6b34e1e1fccb0ba4058189b544efad768e4ec39

  • SHA512

    53ac098dc91e088fc92ad16735932a0a091a9ea8ff400bd4abe41ebff9a375c5cf2e3396b3f18d41138185f0c31277d5bf4d0c4330abd9e99ebda05400d6f111

  • SSDEEP

    12288:KpoIY///1UFZrXC6EBOqD4f29U4nlEyf9cRUHIoqD:9IY/Q7SBkMaqcRUo

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 15 IoCs

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

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 12 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 7 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 15 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 41 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\PlagueCrack.exe
    "C:\Users\Admin\AppData\Local\Temp\PlagueCrack.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4332
    • C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\containerHost\2fKewMuCXyiCtFIwBRQnc93pKTY8.vbe"
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3176
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\containerHost\3seC6ZDrVIVUAwCAlyvL.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2184
          • C:\containerHost\Containerbroker.exe
            "C:\containerHost\Containerbroker.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Drops file in Windows directory
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4104
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2108
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:5104
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/containerHost/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3596
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2772
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2920
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1300
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4436
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3324
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4752
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1156
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:5064
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1784
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\EbVxSN2hCq.bat"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:336
              • C:\Windows\system32\w32tm.exe
                w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                7⤵
                  PID:3252
                • C:\Windows\PrintDialog\Assets\csrss.exe
                  "C:\Windows\PrintDialog\Assets\csrss.exe"
                  7⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2620
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Windows\PrintDialog\Assets\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3760
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\PrintDialog\Assets\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3916
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Windows\PrintDialog\Assets\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:836
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4076
    • 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:3508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1324
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 13 /tr "'C:\Windows\ja-JP\fontdrvhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4460
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\ja-JP\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2076
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 10 /tr "'C:\Windows\ja-JP\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4704
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4072
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3304
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5048
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 10 /tr "'C:\Windows\Prefetch\ReadyBoot\cmd.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3772
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Windows\Prefetch\ReadyBoot\cmd.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3044
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 11 /tr "'C:\Windows\Prefetch\ReadyBoot\cmd.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2652

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • 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

      62623d22bd9e037191765d5083ce16a3

      SHA1

      4a07da6872672f715a4780513d95ed8ddeefd259

      SHA256

      95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

      SHA512

      9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

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

      Filesize

      944B

      MD5

      77d622bb1a5b250869a3238b9bc1402b

      SHA1

      d47f4003c2554b9dfc4c16f22460b331886b191b

      SHA256

      f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

      SHA512

      d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

    • 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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      2e907f77659a6601fcc408274894da2e

      SHA1

      9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

      SHA256

      385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

      SHA512

      34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

      Filesize

      944B

      MD5

      59d97011e091004eaffb9816aa0b9abd

      SHA1

      1602a56b01dd4b7c577ca27d3117e4bcc1aa657b

      SHA256

      18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d

      SHA512

      d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6

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

      Filesize

      944B

      MD5

      e448fe0d240184c6597a31d3be2ced58

      SHA1

      372b8d8c19246d3e38cd3ba123cc0f56070f03cd

      SHA256

      c660f0db85a1e7f0f68db19868979bf50bd541531babf77a701e1b1ce5e6a391

      SHA512

      0b7f7eae7700d32b18eee3677cb7f89b46ace717fa7e6b501d6c47d54f15dff7e12b49f5a7d36a6ffe4c16165c7d55162db4f3621db545b6af638035752beab4

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

      Filesize

      944B

      MD5

      bd5940f08d0be56e65e5f2aaf47c538e

      SHA1

      d7e31b87866e5e383ab5499da64aba50f03e8443

      SHA256

      2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

      SHA512

      c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

    • C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe

      Filesize

      1.2MB

      MD5

      bbc465dac2a2ad945d309b6c3d71362a

      SHA1

      8715e17e788613de3a7cf488cafffb7af337f076

      SHA256

      cd144188e27cde2b00433551763f97a1bacf7e2237a2275746b2557646393efb

      SHA512

      71174fab1b522f57a37a3d523ed217566e5cc522fedde46a643deda65104f631a96329dddb16ff19709a12d76d99315a7ff7714ade1b4b5597d3bc7ea9d428c1

    • C:\Users\Admin\AppData\Local\Temp\EbVxSN2hCq.bat

      Filesize

      204B

      MD5

      b36d0706ecb95eedebc018b0a26aabac

      SHA1

      a3c37539e8920ded8347d958fece6a2697ba8867

      SHA256

      a11a872c2b8c2458b73814f5ed192e0a20d72cf54f7e7d4d3df4991f906e1136

      SHA512

      c394afc74c81c41e21c648f0a873747b67073f86a85b45a4e62a336d6951a3b2c327edc0f5c25c00b055bdcbfd44c8bc70153d0715e71caac705dc595e4ec745

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ykgwtqax.p1t.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\containerHost\2fKewMuCXyiCtFIwBRQnc93pKTY8.vbe

      Filesize

      210B

      MD5

      e19f83b824a08b0ea4e326cb32c2d02d

      SHA1

      6b29b4639990f14ef2761b697968e9a27ab1f364

      SHA256

      943ded06e5e6f359540f650106cad70c467e20b40c081149f4665d901f8330ef

      SHA512

      7394f2663bd590a4ccf408dc515a3ce93aa9f6b8790b94c91f8b3c0e6d882eaa47344f3dc70983096b02f785ef3da6c99d4413bedb2544d94dfc7bde0ff7b00e

    • C:\containerHost\3seC6ZDrVIVUAwCAlyvL.bat

      Filesize

      38B

      MD5

      757265e79a6fc0326410a236e366530c

      SHA1

      c15b5f5af6c606936162dc0fbc68eb99e88e9079

      SHA256

      8f6f8a7e41696219f89a89c6e63d748180821747103505bdc57d1afdf058d49b

      SHA512

      23c010d289d5e00adcbbc1c01c510f2534fc33effe445d550406e43af760fee4ca30d7552904e6ac33c948eb28335bf9c890d7cee007da11fb78d6992bfa8240

    • C:\containerHost\Containerbroker.exe

      Filesize

      946KB

      MD5

      3c7c10c178e374d52c5b937d12ddfb59

      SHA1

      c4e4daf3017343944613fc81526b325c2991af9e

      SHA256

      4fc7706ed0082028a12817ef52d20cb55671a96bcc69774f5afcefbf0cde7b35

      SHA512

      fd6b98885871127d657313eb8c872e032d5e49fd87587adf7b538a84aa96d5ec75ade354d1320ac621636cd94933af1961a16a93fcdd389a1069440243b185ab

    • memory/2620-182-0x000000001E3F0000-0x000000001E918000-memory.dmp

      Filesize

      5.2MB

    • memory/2620-181-0x000000001DAB0000-0x000000001DC72000-memory.dmp

      Filesize

      1.8MB

    • memory/4104-26-0x00000000024C0000-0x00000000024CE000-memory.dmp

      Filesize

      56KB

    • memory/4104-25-0x0000000000310000-0x0000000000404000-memory.dmp

      Filesize

      976KB

    • memory/4104-27-0x000000001AFD0000-0x000000001AFDC000-memory.dmp

      Filesize

      48KB

    • memory/4332-20-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

      Filesize

      10.8MB

    • memory/4332-7-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

      Filesize

      10.8MB

    • memory/4332-1-0x0000000000420000-0x00000000004DC000-memory.dmp

      Filesize

      752KB

    • memory/4332-0-0x00007FFC37523000-0x00007FFC37525000-memory.dmp

      Filesize

      8KB

    • memory/4436-49-0x0000021473870000-0x0000021473892000-memory.dmp

      Filesize

      136KB