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Analysis

  • max time kernel
    119s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2024, 03:02

General

  • Target

    9e52adafb9ddb7668e8c025ebd74a856434b0c4c487a6204fe750e683bc3dbe4.exe

  • Size

    2.2MB

  • MD5

    7471eb468a1f0166167f369bec578915

  • SHA1

    9ded35e930d112a8909dad6aaf1a657f65284588

  • SHA256

    9e52adafb9ddb7668e8c025ebd74a856434b0c4c487a6204fe750e683bc3dbe4

  • SHA512

    3f4abc590644d80a6fdebca9e0d2e1a28bbe220a2f48affa09707d9eaa0ab08077dfec58d6f3b78483459dd143cabd1c38ce3941f5766f06e0f1649b705078f8

  • SSDEEP

    49152:IBTj8WeJJUFAFQGoAgNCw0J1/XfkP/qcdi:yf8W7W8AtX83qcdi

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.

  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 4 IoCs

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

  • Drops file in Program Files 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 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 46 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\9e52adafb9ddb7668e8c025ebd74a856434b0c4c487a6204fe750e683bc3dbe4.exe
    "C:\Users\Admin\AppData\Local\Temp\9e52adafb9ddb7668e8c025ebd74a856434b0c4c487a6204fe750e683bc3dbe4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\webHostnet\zwQVFWlQFNPt4NETL.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\webHostnet\pKNW0LLPvws3GwQKOkochIXVKV43j60Eam3t2s1RnAC4qUIE4HMFCa.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:2852
        • C:\webHostnet\MsPortSavesruntime.exe
          "C:\webHostnet/MsPortSavesruntime.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2684
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\sppsvc.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2976
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Journal\sppsvc.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:2356
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1124
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\lsm.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:680
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\MSOCache\All Users\Idle.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1904
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\webHostnet\MsPortSavesruntime.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1968
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\EJjZUHq6yT.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1080
            • C:\Windows\system32\chcp.com
              chcp 65001
              6⤵
                PID:2292
              • C:\Windows\system32\w32tm.exe
                w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                6⤵
                  PID:1596
                • C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe
                  "C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2892
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\sppsvc.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1888
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:884
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2596
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Journal\sppsvc.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2392
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files\Windows Journal\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2956
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Journal\sppsvc.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:3028
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 8 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1288
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1964
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 13 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2848
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\lsm.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2372
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:584
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\lsm.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1004
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\Idle.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:516
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\MSOCache\All Users\Idle.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2324
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\Idle.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2084
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MsPortSavesruntimeM" /sc MINUTE /mo 6 /tr "'C:\webHostnet\MsPortSavesruntime.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2124
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MsPortSavesruntime" /sc ONLOGON /tr "'C:\webHostnet\MsPortSavesruntime.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2476
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "MsPortSavesruntimeM" /sc MINUTE /mo 7 /tr "'C:\webHostnet\MsPortSavesruntime.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2564

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\EJjZUHq6yT.bat

        Filesize

        232B

        MD5

        1a7bd2ae8042d0114114d1087ed39a04

        SHA1

        a91a5bf2164f35a41cff36fe7d35bfcb05af27b5

        SHA256

        e8b51f549cb1525f5b0c987cbb038a686262a3501185640d305dbf7bb3854bd0

        SHA512

        b385cdb0f81e9836d51b7c1595fc419f6dee3c1b677c8de4abe6e80a33c7df4772e9b2883878783e4501f73d1a37af29538e5a64ea59e724468ebd86987e6bdc

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

        Filesize

        7KB

        MD5

        06e54d0dcc6fb0cee4414d52f51c9e6a

        SHA1

        2d50adbf6a763fcd529409a618605e9d09f63500

        SHA256

        e46659b32d0e1fb6d8f9eaa2f2d139920a8e6d279f2df296706e1065df84b7cd

        SHA512

        bea7c2247204dc90a90d106dad5897f8623b9548b046c29ce1f16eba4b0a5eda7ebee073e55f52c8ebb6ba7eb8c308501c79aa72c9c8d7ae90d5713d2d80df41

      • C:\webHostnet\pKNW0LLPvws3GwQKOkochIXVKV43j60Eam3t2s1RnAC4qUIE4HMFCa.bat

        Filesize

        197B

        MD5

        c68424d522237cf78aa4511e34e7abda

        SHA1

        0e6bd31ac5c94b2f7baf9952e722181746327f20

        SHA256

        52ca02fb677cf28f98813c29dbce9d521a3257006de1289538b313ac34cbab58

        SHA512

        5487e35a5f98d224311997e7906d999c0a496aff5ec0a2c364566bef64d16e2f79bec2a06558363d337453b9da5734deab157ca20868b02bfb22933c1f1e5791

      • C:\webHostnet\zwQVFWlQFNPt4NETL.vbe

        Filesize

        243B

        MD5

        c502f6060bf849e72ab58258f8b8bcf2

        SHA1

        728683a638d413ac1706bb139e6d3a8b54ef5431

        SHA256

        485dfcfe33027d5023830e32ac17f0ebbc36048efcc48db58fe10fe1d4cc341e

        SHA512

        ea6563d1338e382e6109df8f16e0f67a6355ac766786f86d2fa011bdb274da2ed7dafca508fb6cade0e6725d6bda37166cdff4805def1bcb1c82bf0e9a9bb63e

      • \webHostnet\MsPortSavesruntime.exe

        Filesize

        1.8MB

        MD5

        4f593957ff5a8313dc52738f85592cba

        SHA1

        dc5e3e8f14b9c6e6541947e55b195b8efebf22d7

        SHA256

        1d85033f5c6bc5927cb48364f91d455f2263dff76505d9849e5e4958cb6c173f

        SHA512

        0e4c741ba7fd0e99e504606000e2190b6c9afcb4349f80c6610da2f974c8a466fd9c22df000b65d46af72c4970e826ed77533fe2307270a70a044b36aeb1814a

      • memory/1904-69-0x0000000001DE0000-0x0000000001DE8000-memory.dmp

        Filesize

        32KB

      • memory/2356-68-0x000000001B230000-0x000000001B512000-memory.dmp

        Filesize

        2.9MB

      • memory/2684-13-0x0000000000110000-0x00000000002EE000-memory.dmp

        Filesize

        1.9MB

      • memory/2684-23-0x0000000000600000-0x000000000060C000-memory.dmp

        Filesize

        48KB

      • memory/2684-21-0x00000000005E0000-0x00000000005E8000-memory.dmp

        Filesize

        32KB

      • memory/2684-19-0x00000000006D0000-0x00000000006E8000-memory.dmp

        Filesize

        96KB

      • memory/2684-17-0x00000000006A0000-0x00000000006BC000-memory.dmp

        Filesize

        112KB

      • memory/2684-15-0x00000000005D0000-0x00000000005DE000-memory.dmp

        Filesize

        56KB

      • memory/2892-73-0x0000000001370000-0x000000000154E000-memory.dmp

        Filesize

        1.9MB