Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2025, 09:32

General

  • Target

    2025-04-04_0914b58ea55656076d880f83aef889d9_black-basta_cova_luca-stealer.exe

  • Size

    2.3MB

  • MD5

    0914b58ea55656076d880f83aef889d9

  • SHA1

    ae7d191fbe9180399199ccfb7e9693bd01e52f01

  • SHA256

    64c9f04c293aa63c78a8c6d37c83871625082c8c765bd41521e98f2a07517f53

  • SHA512

    5a9d1fcedcf11bb2bee972bb15d19415e8ef990baac510ba675cb04a979072794adebc1e41f6dfa85762a0eecb3506dfd8606fc94c077b7a8ff098739d574add

  • SSDEEP

    49152:IBJZNpZGSlLv9nBOB3ruEjHnZ2NUAMsjT2:ynNpISxwCEjHZUfjC

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
  • 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 5 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 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\2025-04-04_0914b58ea55656076d880f83aef889d9_black-basta_cova_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-04_0914b58ea55656076d880f83aef889d9_black-basta_cova_luca-stealer.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\containerAgentcomponentperfCrt\tdevxO25ioUclhT0CNbIPvoVQas6BSR31ciDGLUjLu6QIL.vbe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\containerAgentcomponentperfCrt\yAybt7xL2a8YAHzR7v9zPvr57mwi4SnkRJcp08WRAr7.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3048
        • C:\containerAgentcomponentperfCrt\runtimedll.exe
          "C:\containerAgentcomponentperfCrt/runtimedll.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:2204
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\2f3e0199fccb3f72e8a39924edc6a781\TextInputHost.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:5548
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\34c553de294c1d56d0a800105b\csrss.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2924
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\Tasks\MoUsoCoreWorker.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4484
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows NT\unsecapp.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:5592
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Sidebar\winlogon.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4392
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\containerAgentcomponentperfCrt\runtimedll.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:3420
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\ZyjjI8O7Mh.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4108
            • C:\Windows\system32\chcp.com
              chcp 65001
              6⤵
                PID:4732
              • C:\Windows\system32\w32tm.exe
                w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                6⤵
                  PID:4044
                • C:\containerAgentcomponentperfCrt\runtimedll.exe
                  "C:\containerAgentcomponentperfCrt\runtimedll.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1052
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 8 /tr "'C:\2f3e0199fccb3f72e8a39924edc6a781\TextInputHost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1592
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\2f3e0199fccb3f72e8a39924edc6a781\TextInputHost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5176
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 13 /tr "'C:\2f3e0199fccb3f72e8a39924edc6a781\TextInputHost.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 "csrssc" /sc MINUTE /mo 11 /tr "'C:\34c553de294c1d56d0a800105b\csrss.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3400
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\34c553de294c1d56d0a800105b\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5360
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\34c553de294c1d56d0a800105b\csrss.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5300
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MoUsoCoreWorkerM" /sc MINUTE /mo 10 /tr "'C:\Windows\Tasks\MoUsoCoreWorker.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2212
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MoUsoCoreWorker" /sc ONLOGON /tr "'C:\Windows\Tasks\MoUsoCoreWorker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2724
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MoUsoCoreWorkerM" /sc MINUTE /mo 5 /tr "'C:\Windows\Tasks\MoUsoCoreWorker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:868
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows NT\unsecapp.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:956
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\unsecapp.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3428
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows NT\unsecapp.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5028
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Sidebar\winlogon.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6068
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\winlogon.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2960
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Sidebar\winlogon.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:456
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "runtimedllr" /sc MINUTE /mo 5 /tr "'C:\containerAgentcomponentperfCrt\runtimedll.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3856
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "runtimedll" /sc ONLOGON /tr "'C:\containerAgentcomponentperfCrt\runtimedll.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6096
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "runtimedllr" /sc MINUTE /mo 13 /tr "'C:\containerAgentcomponentperfCrt\runtimedll.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3696

      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\CLR_v4.0\UsageLogs\runtimedll.exe.log

        Filesize

        1KB

        MD5

        af6acd95d59de87c04642509c30e81c1

        SHA1

        f9549ae93fdb0a5861a79a08f60aa81c4b32377b

        SHA256

        7521ee2d065a78efcab55a194fbd78492f84b70595f139263875f4ea92b194d6

        SHA512

        93ab99bcf588fde553de3240e0d2b0cbd4e4bc5ef5e99d53f45a267d7ff30103a80b5a7aa1c52d6eff1e070af0ec82d2c0b8aafb7099742aa16810edc1815c3a

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

        Filesize

        944B

        MD5

        164a45e66dbe5b4c1fad9ced25394a84

        SHA1

        5f90cf92b891734679ddb12be560b2ec4c6282d7

        SHA256

        e8f1393a9e1a21ef9c18231e6d1301624694e6036ec8ddf1234219eb96222a28

        SHA512

        d05e8eebd235ed67a9a4c8f13004cf576df60ae068b81cd11a9d3de69cde110bf3983005a55adac948c5e8f5843b44c865b56dad4d8a37de3d2e442c4ef2eb55

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

        Filesize

        944B

        MD5

        87d9fe9e5ee685ff2b66e5396fcdcb99

        SHA1

        0ac74edba86591b97d1a7531c3d2e659f0843b7f

        SHA256

        f84df996802a7b65b0a58ecd1960f157bdc82f817bae81409eb4184e438ed9b8

        SHA512

        ce602ffb6822849af961afc13b972d0d344bbfaa50c5fe372cf475f424a9227f788ea64a1dfa9b96d8e01cfa2b7f0f9e695ea001ea37a6c7c235c86931d1cf3e

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

        Filesize

        944B

        MD5

        454c5c4b128d34aee2eb765f2a9c0aa9

        SHA1

        4b6e92db79d964f604fd6b261b3b19ede2aea8a5

        SHA256

        e1e65d1697b9ac59805f677cbc8eec623a899b75b1389354f0948ad3c1513772

        SHA512

        17b4e146ef4f8862d06ac975204cca9ef9b077420256df92d94409715b18efb4dc63879154c1c234317a169ac63024ed43b5cb52473882dc46c588af089f25d6

      • C:\Users\Admin\AppData\Local\Temp\ZyjjI8O7Mh.bat

        Filesize

        224B

        MD5

        a42a1dcb29dd69dfccb443720bf7f39e

        SHA1

        c711aadec2c402195826cec0060875905c879ecc

        SHA256

        b9d55c58e1760f3467b503202df035ec76de105a31e12527f8d1b7a8aefdac72

        SHA512

        6bbbd6a9ea141dc3ee68e73afc58a7d048408dd5c7da9e7db3183b732bd0c25e571d4f04bdb0263ed7b225d92611f8def5f18de2f0aa891b8b391a3f9dd36845

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jspdfmam.tph.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\containerAgentcomponentperfCrt\runtimedll.exe

        Filesize

        2.0MB

        MD5

        b4bd2b9cf2249aff9acce695410c6544

        SHA1

        9933378b54736c83aa593725b0b0e7fb36e7aed3

        SHA256

        05e017149561fb1c3428fee231081d1039e715d12995afeff7f1d6b9d901268f

        SHA512

        7ead65259534d91657f2d21d1f8736017f7006f7e57746b45e26edf3dce07bc778bcca0297a2ed07013d1196c37bcac8ace2c6181b7f7f1cfdffe11a9db346bc

      • C:\containerAgentcomponentperfCrt\tdevxO25ioUclhT0CNbIPvoVQas6BSR31ciDGLUjLu6QIL.vbe

        Filesize

        252B

        MD5

        15ffde82ddf51102e89fc1ca59238983

        SHA1

        96fec05c453158ca8fd77e205d7b908f55571071

        SHA256

        07928759b248cbb91ebcdcd9db59a4092bbd6f068b9e276114da98146cbf7777

        SHA512

        f2b93fe589c0198aa4176c1cb278a642a493c9aecefd032f78d1aa68377819a6b0050fa0b341398af1227cdfdee10b203a4d324af1d01fe1df0555db9236d66b

      • C:\containerAgentcomponentperfCrt\yAybt7xL2a8YAHzR7v9zPvr57mwi4SnkRJcp08WRAr7.bat

        Filesize

        99B

        MD5

        5c3b9e29e5c83bbb1de37d27fcb3ca3b

        SHA1

        73b5effad2508fb04fa276a2aea33239ae85f8d9

        SHA256

        a8af236a8facc058d7f8dc00e99c8041b10d644e6c97937608dca5d401543e84

        SHA512

        4e6023b0356a27b8829f9f6a872477e7a3986eede63fba46246e63e02f6a7e54de629fa5e5927d3c1ec7686ac705f086fe8f04ca167c13fc138a1eff0892e2aa

      • memory/1052-130-0x000000001C1E0000-0x000000001C2AD000-memory.dmp

        Filesize

        820KB

      • memory/2204-17-0x000000001B9D0000-0x000000001B9EC000-memory.dmp

        Filesize

        112KB

      • memory/2204-24-0x0000000002F90000-0x0000000002F9C000-memory.dmp

        Filesize

        48KB

      • memory/2204-30-0x000000001BA20000-0x000000001BA2E000-memory.dmp

        Filesize

        56KB

      • memory/2204-32-0x000000001BA30000-0x000000001BA3C000-memory.dmp

        Filesize

        48KB

      • memory/2204-26-0x0000000002FA0000-0x0000000002FAE000-memory.dmp

        Filesize

        56KB

      • memory/2204-12-0x00007FF978BF3000-0x00007FF978BF5000-memory.dmp

        Filesize

        8KB

      • memory/2204-64-0x000000001CF40000-0x000000001D00D000-memory.dmp

        Filesize

        820KB

      • memory/2204-28-0x000000001BA10000-0x000000001BA1C000-memory.dmp

        Filesize

        48KB

      • memory/2204-22-0x0000000002F80000-0x0000000002F8E000-memory.dmp

        Filesize

        56KB

      • memory/2204-20-0x000000001B9F0000-0x000000001BA08000-memory.dmp

        Filesize

        96KB

      • memory/2204-18-0x000000001BB90000-0x000000001BBE0000-memory.dmp

        Filesize

        320KB

      • memory/2204-15-0x0000000002F20000-0x0000000002F2E000-memory.dmp

        Filesize

        56KB

      • memory/2204-13-0x0000000000C90000-0x0000000000E98000-memory.dmp

        Filesize

        2.0MB

      • memory/4484-53-0x000002ACFB230000-0x000002ACFB252000-memory.dmp

        Filesize

        136KB