Analysis

  • max time kernel
    92s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 08:08

General

  • Target

    717b0a35b674ab81c9a8eaaa28ce6a9beb1d925e0f6dfb7ee7a7822298ab6530N.exe

  • Size

    1.7MB

  • MD5

    9ecc3c152d84531b1ceba5d779e60750

  • SHA1

    2db878eb2f9bfb50cfa51a12544a3cd4ae337d31

  • SHA256

    717b0a35b674ab81c9a8eaaa28ce6a9beb1d925e0f6dfb7ee7a7822298ab6530

  • SHA512

    02864e5aaa7a7cf4a321e19eae5fe5e752299775387c52560c1c5c036e3fa7daf79d019f34b77206980a669d11f515a4c6f52c28fbbcdb6ffd616c3c4418fb1b

  • SSDEEP

    24576:N3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:NgwuuEpdDLNwVMeXDL0fdSzAG

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 6 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 11 IoCs

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

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 30 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\717b0a35b674ab81c9a8eaaa28ce6a9beb1d925e0f6dfb7ee7a7822298ab6530N.exe
    "C:\Users\Admin\AppData\Local\Temp\717b0a35b674ab81c9a8eaaa28ce6a9beb1d925e0f6dfb7ee7a7822298ab6530N.exe"
    1⤵
    • Drops file in Drivers directory
    • Checks computer location settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3852
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4780
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1008
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3172
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1640
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3428
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2988
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2868
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:524
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3564
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2132
    • C:\Users\Default\My Documents\explorer.exe
      "C:\Users\Default\My Documents\explorer.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3420
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\dbeb744b-2916-4a63-a240-5e8701ad5c60.vbs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:696
        • C:\Users\Default\My Documents\explorer.exe
          "C:\Users\Default\My Documents\explorer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4308
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\b91a1b00-66c4-453f-8419-340ad22e8038.vbs"
        3⤵
          PID:4988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Videos\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:464
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Public\Videos\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1584
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Users\Public\Videos\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1600
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Users\Default\My Documents\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1096
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Default\My Documents\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1108
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 11 /tr "'C:\Users\Default\My Documents\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4792

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      1KB

      MD5

      3ad9a5252966a3ab5b1b3222424717be

      SHA1

      5397522c86c74ddbfb2585b9613c794f4b4c3410

      SHA256

      27525f5fc7871c6828ab5173315e95b5c7e918d2ee532781c562c378584b5249

      SHA512

      b1a745f7a0f33b777ffc34f74f42752144d9f2d06b8bc613e703570494762b3af87e153212c3274b18af14f17b8619e2f350b7c3cc11228f7d4208d4251e90e6

    • 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

      3a6bad9528f8e23fb5c77fbd81fa28e8

      SHA1

      f127317c3bc6407f536c0f0600dcbcf1aabfba36

      SHA256

      986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

      SHA512

      846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

    • 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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      6c47b3f4e68eebd47e9332eebfd2dd4e

      SHA1

      67f0b143336d7db7b281ed3de5e877fa87261834

      SHA256

      8c48b1f2338e5b24094821f41121d2221f1cb3200338f46df49f64d1c4bc3e0c

      SHA512

      0acf302a9fc971ef9df65ed42c47ea17828e54dff685f4434f360556fd27cdc26a75069f00dcdc14ba174893c6fd7a2cfd8c6c07be3ce35dafee0a006914eaca

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mitkptbi.wr1.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\b91a1b00-66c4-453f-8419-340ad22e8038.vbs

      Filesize

      494B

      MD5

      71fa4d9f62f4084ebfa815a44c17f8fc

      SHA1

      00bdd94eadca23e4f64f827442982aead95ea04d

      SHA256

      bfed7444c8ebc7ab76af0b15386252f42a6f6b6f34785697d193c79f5644c5e9

      SHA512

      a672dd0827be8a997acf9d441b1fe41138450c2b66c0694f568bd88367f520cb707aa885106297625e2eec6faf6c3a1d8416cd63b7c96949a96f677bd7504324

    • C:\Users\Admin\AppData\Local\Temp\dbeb744b-2916-4a63-a240-5e8701ad5c60.vbs

      Filesize

      718B

      MD5

      69028ce3b001f7c1c692df0ccbc6fdd7

      SHA1

      9aeb3d3eb6c85686a1abd0b7e510c9ae0861478f

      SHA256

      cc05cf55c1c5133d600f4659c5e2abc95bc59922393081fc06292999246a4333

      SHA512

      53080344fb21694baf30aca29412faf5c763f6a77ec77b3bb84fe7b52b1348d8608d9a3cb250ae03f0d68fe69d2e093ef7a8a0af78ced77b91208b080138cd7e

    • C:\Users\Public\Videos\explorer.exe

      Filesize

      1.7MB

      MD5

      9ecc3c152d84531b1ceba5d779e60750

      SHA1

      2db878eb2f9bfb50cfa51a12544a3cd4ae337d31

      SHA256

      717b0a35b674ab81c9a8eaaa28ce6a9beb1d925e0f6dfb7ee7a7822298ab6530

      SHA512

      02864e5aaa7a7cf4a321e19eae5fe5e752299775387c52560c1c5c036e3fa7daf79d019f34b77206980a669d11f515a4c6f52c28fbbcdb6ffd616c3c4418fb1b

    • memory/3420-217-0x0000000002C00000-0x0000000002C12000-memory.dmp

      Filesize

      72KB

    • memory/3444-8-0x000000001BDB0000-0x000000001BDC2000-memory.dmp

      Filesize

      72KB

    • memory/3444-216-0x00007FFA1ADC0000-0x00007FFA1B881000-memory.dmp

      Filesize

      10.8MB

    • memory/3444-18-0x000000001C7E0000-0x000000001C7EC000-memory.dmp

      Filesize

      48KB

    • memory/3444-17-0x000000001C680000-0x000000001C68C000-memory.dmp

      Filesize

      48KB

    • memory/3444-16-0x000000001C670000-0x000000001C678000-memory.dmp

      Filesize

      32KB

    • memory/3444-15-0x000000001C410000-0x000000001C41A000-memory.dmp

      Filesize

      40KB

    • memory/3444-19-0x00007FFA1ADC0000-0x00007FFA1B881000-memory.dmp

      Filesize

      10.8MB

    • memory/3444-22-0x00007FFA1ADC0000-0x00007FFA1B881000-memory.dmp

      Filesize

      10.8MB

    • memory/3444-13-0x000000001C400000-0x000000001C40C000-memory.dmp

      Filesize

      48KB

    • memory/3444-11-0x000000001C3E0000-0x000000001C3E8000-memory.dmp

      Filesize

      32KB

    • memory/3444-1-0x0000000000F90000-0x0000000001146000-memory.dmp

      Filesize

      1.7MB

    • memory/3444-14-0x000000001C7D0000-0x000000001C7DC000-memory.dmp

      Filesize

      48KB

    • memory/3444-10-0x000000001C3D0000-0x000000001C3DC000-memory.dmp

      Filesize

      48KB

    • memory/3444-9-0x000000001C3F0000-0x000000001C400000-memory.dmp

      Filesize

      64KB

    • memory/3444-0-0x00007FFA1ADC3000-0x00007FFA1ADC5000-memory.dmp

      Filesize

      8KB

    • memory/3444-7-0x0000000003320000-0x0000000003336000-memory.dmp

      Filesize

      88KB

    • memory/3444-4-0x000000001C420000-0x000000001C470000-memory.dmp

      Filesize

      320KB

    • memory/3444-5-0x00000000032F0000-0x00000000032F8000-memory.dmp

      Filesize

      32KB

    • memory/3444-6-0x0000000003310000-0x0000000003320000-memory.dmp

      Filesize

      64KB

    • memory/3444-3-0x00000000032D0000-0x00000000032EC000-memory.dmp

      Filesize

      112KB

    • memory/3444-2-0x00007FFA1ADC0000-0x00007FFA1B881000-memory.dmp

      Filesize

      10.8MB

    • memory/3564-131-0x0000015067C80000-0x0000015067CA2000-memory.dmp

      Filesize

      136KB

    • memory/4308-253-0x000000001BD00000-0x000000001BD12000-memory.dmp

      Filesize

      72KB