Analysis

  • max time kernel
    94s
  • 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
    22-11-2024 19:55

General

  • Target

    8e9ebe22d1b2b3c07bee3524ec09d4d657134d78ad27491397b6d73d83b1e3f8N.exe

  • Size

    1.7MB

  • MD5

    6025a571157fca934b0a10a53c112bd0

  • SHA1

    e6abd828d62fe816a316ba2c3ff4ae8b2033be33

  • SHA256

    8e9ebe22d1b2b3c07bee3524ec09d4d657134d78ad27491397b6d73d83b1e3f8

  • SHA512

    aa527ab4bda8490db528ccad1511fc8412988f65b2c9cd63de72430c803050beb9c0bf5438e0c58e0344daf65775f4cc7269a547b2aee303bd0cb57ee7169840

  • 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\8e9ebe22d1b2b3c07bee3524ec09d4d657134d78ad27491397b6d73d83b1e3f8N.exe
    "C:\Users\Admin\AppData\Local\Temp\8e9ebe22d1b2b3c07bee3524ec09d4d657134d78ad27491397b6d73d83b1e3f8N.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:4120
    • 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:1124
    • 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:2196
    • 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:2524
    • 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:3864
    • 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:3844
    • 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:3172
    • 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:812
    • 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:3168
    • 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:3304
    • 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:2372
    • 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:1492
    • C:\Users\Admin\Documents\My Videos\services.exe
      "C:\Users\Admin\Documents\My Videos\services.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\47ff2487-6a73-452b-91ce-3775a15b4671.vbs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1772
        • C:\Users\Admin\Documents\My Videos\services.exe
          "C:\Users\Admin\Documents\My Videos\services.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1128
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\f5f3e44b-4466-43a8-8fc0-54c2878ff836.vbs"
        3⤵
          PID:4052
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\Documents\My Videos\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2396
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Admin\Documents\My Videos\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2456
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\Documents\My Videos\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1660
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Pictures\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4148
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Users\Default\Pictures\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:440
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Users\Default\Pictures\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3744

    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\services.exe.log

      Filesize

      1KB

      MD5

      3ad9a5252966a3ab5b1b3222424717be

      SHA1

      5397522c86c74ddbfb2585b9613c794f4b4c3410

      SHA256

      27525f5fc7871c6828ab5173315e95b5c7e918d2ee532781c562c378584b5249

      SHA512

      b1a745f7a0f33b777ffc34f74f42752144d9f2d06b8bc613e703570494762b3af87e153212c3274b18af14f17b8619e2f350b7c3cc11228f7d4208d4251e90e6

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

      Filesize

      944B

      MD5

      6d42b6da621e8df5674e26b799c8e2aa

      SHA1

      ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

      SHA256

      5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

      SHA512

      53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

    • 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

      59d97011e091004eaffb9816aa0b9abd

      SHA1

      1602a56b01dd4b7c577ca27d3117e4bcc1aa657b

      SHA256

      18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d

      SHA512

      d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6

    • 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

      3a6bad9528f8e23fb5c77fbd81fa28e8

      SHA1

      f127317c3bc6407f536c0f0600dcbcf1aabfba36

      SHA256

      986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

      SHA512

      846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

    • C:\Users\Admin\AppData\Local\Temp\47ff2487-6a73-452b-91ce-3775a15b4671.vbs

      Filesize

      723B

      MD5

      8ffcc4520a179e5062bf06d73a2b8353

      SHA1

      beccdbe6c3b570da617fa77b23bf2851e8023d1f

      SHA256

      6bc13d9f0151e1b39a829218429cb5c4080d2d7813dd0735fff6959760cf207c

      SHA512

      1f22e8e405b01afbd965acf36197ed761ea6cfd124f1907ab34101d7da30cf70af15c3dc48a245b8c10648349baa3ed6475bd87efbf02c25b34a165670340f80

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a0kad1iq.14i.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\f5f3e44b-4466-43a8-8fc0-54c2878ff836.vbs

      Filesize

      499B

      MD5

      fe1186fa12f60b4c780a7ef8d7fbf142

      SHA1

      c80742ee7a1d20196bf5b7507b2b6f3616f142fe

      SHA256

      9a431fbbb8c3c353e33a40f67d53c682c7fe0e7484f0f82ceb901010c6f7cd7a

      SHA512

      8ae94c6b0328ad07234aa285d88ac0916d95dbcfd196c740ae3b514312add9c9ac875997a5cb25e2b1f908834d8f37bfa312fa9369a2dfd5968fd28d3fe66d40

    • C:\Users\Admin\Videos\services.exe

      Filesize

      1.7MB

      MD5

      6025a571157fca934b0a10a53c112bd0

      SHA1

      e6abd828d62fe816a316ba2c3ff4ae8b2033be33

      SHA256

      8e9ebe22d1b2b3c07bee3524ec09d4d657134d78ad27491397b6d73d83b1e3f8

      SHA512

      aa527ab4bda8490db528ccad1511fc8412988f65b2c9cd63de72430c803050beb9c0bf5438e0c58e0344daf65775f4cc7269a547b2aee303bd0cb57ee7169840

    • memory/1128-253-0x000000001D560000-0x000000001D572000-memory.dmp

      Filesize

      72KB

    • memory/1604-217-0x000000001D150000-0x000000001D162000-memory.dmp

      Filesize

      72KB

    • memory/3168-105-0x000001A31EFF0000-0x000001A31F012000-memory.dmp

      Filesize

      136KB

    • memory/4120-7-0x000000001B5C0000-0x000000001B5D6000-memory.dmp

      Filesize

      88KB

    • memory/4120-10-0x000000001BE60000-0x000000001BE6C000-memory.dmp

      Filesize

      48KB

    • memory/4120-16-0x000000001C0C0000-0x000000001C0C8000-memory.dmp

      Filesize

      32KB

    • memory/4120-15-0x000000001C0A0000-0x000000001C0AA000-memory.dmp

      Filesize

      40KB

    • memory/4120-21-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

      Filesize

      10.8MB

    • memory/4120-22-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

      Filesize

      10.8MB

    • memory/4120-11-0x000000001BE80000-0x000000001BE88000-memory.dmp

      Filesize

      32KB

    • memory/4120-13-0x000000001BE90000-0x000000001BE9C000-memory.dmp

      Filesize

      48KB

    • memory/4120-17-0x000000001C0D0000-0x000000001C0DC000-memory.dmp

      Filesize

      48KB

    • memory/4120-215-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

      Filesize

      10.8MB

    • memory/4120-14-0x000000001C110000-0x000000001C11C000-memory.dmp

      Filesize

      48KB

    • memory/4120-18-0x000000001C0B0000-0x000000001C0BC000-memory.dmp

      Filesize

      48KB

    • memory/4120-9-0x000000001BE70000-0x000000001BE80000-memory.dmp

      Filesize

      64KB

    • memory/4120-0-0x00007FFCED2A3000-0x00007FFCED2A5000-memory.dmp

      Filesize

      8KB

    • memory/4120-8-0x000000001B5E0000-0x000000001B5F2000-memory.dmp

      Filesize

      72KB

    • memory/4120-4-0x000000001B600000-0x000000001B650000-memory.dmp

      Filesize

      320KB

    • memory/4120-5-0x000000001B5A0000-0x000000001B5A8000-memory.dmp

      Filesize

      32KB

    • memory/4120-6-0x000000001B5B0000-0x000000001B5C0000-memory.dmp

      Filesize

      64KB

    • memory/4120-3-0x0000000002B00000-0x0000000002B1C000-memory.dmp

      Filesize

      112KB

    • memory/4120-2-0x00007FFCED2A0000-0x00007FFCEDD61000-memory.dmp

      Filesize

      10.8MB

    • memory/4120-1-0x00000000008D0000-0x0000000000A86000-memory.dmp

      Filesize

      1.7MB