Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2025 05:53

General

  • Target

    JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe

  • Size

    2.0MB

  • MD5

    c07cdd8d27b5b968b06166ceddcfd35a

  • SHA1

    419905135ad7276f36edd5654ff50643875d52b3

  • SHA256

    6b350fefc7d6ca79ca3e4cef39b4e71e7459d98ef213693ae3cec2c1b1d03863

  • SHA512

    01ddba53ed10452aeefde7aa2bcb289d75d5ce90fe0771183d5abc5f3a178d20b5495381084e75e858130bf31dbdd33edf82d51c96d1e4a99ee4c21bf97327ed

  • SSDEEP

    49152:kqL5o66QwgVAVph9QBoyycpwgPGdnDq3IEP:x7oh9yycFODq3vP

Malware Config

Signatures

  • DcRat 20 IoCs

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • Process spawned unexpected child process 14 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.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 14 IoCs
  • Drops file in System32 directory 20 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 14 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 18 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\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe"
    1⤵
    • DcRat
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IkhZ2KyQqS.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4464
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2756
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe"
          3⤵
          • Checks computer location settings
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4292
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\ah1HAoUpid.bat"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4516
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              5⤵
                PID:3492
              • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe
                "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe"
                5⤵
                • Checks computer location settings
                • Adds Run key to start application
                • Drops file in System32 directory
                • Drops file in Windows directory
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:5048
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Kjc7Aakhi7.bat"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1716
                  • C:\Windows\system32\w32tm.exe
                    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                    7⤵
                      PID:3076
                    • C:\PerfLogs\services.exe
                      "C:\PerfLogs\services.exe"
                      7⤵
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3820
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\prntvpt\RuntimeBroker.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3604
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\System32\winipcsecproc\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3436
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2688
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\winrm\RuntimeBroker.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2456
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\wlidres\RuntimeBroker.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1608
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\System32\ActiveHours\sihost.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4132
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\System32\msdtcVSp1res\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4536
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Documents and Settings\StartMenuExperienceHost.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4804
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Windows\System32\wimserv\SppExtComObj.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4680
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\PerfLogs\services.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3616
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\TextInputHost.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5096
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\PerfLogs\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5044
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Windows\System32\SettingsHandlers_Flights\SppExtComObj.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1408
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\System32\hhsetup\sihost.exe'" /rl HIGHEST /f
          1⤵
          • DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4960

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\JaffaCakes118_c07cdd8d27b5b968b06166ceddcfd35a.exe.log

          Filesize

          1KB

          MD5

          b7c0c43fc7804baaa7dc87152cdc9554

          SHA1

          1bab62bd56af745678d4e967d91e1ccfdeed4038

          SHA256

          46386a61f3aaf1b1c2e6efc9fc7e9e9ff16cd13ae58b8d856835771fedb6d457

          SHA512

          9fda3dd00a3406137e0113f13f78e77b20a76512b35820d38df696842cbbf2e2ebabfb99a3846c9637ecb54af858ec1551521187e379872973006426a253f769

        • C:\Users\Admin\AppData\Local\Temp\IkhZ2KyQqS.bat

          Filesize

          248B

          MD5

          4022d10089542ab90cfeb0bde498dc63

          SHA1

          cd78e6115d499b74fbbbb672f918f491c16e9210

          SHA256

          fe4bd97f62e649c3547c157fef9571fe172650ae743e9cd4fc36455af7ea7c37

          SHA512

          30e82f4d6e5ebb857f50e0485a135d53af6030151277939cba08160b8ee22b83d54acc4c8a1b51c2ac5ec96a4df67872607e7b0b181b0c40c303e8a7071c14f4

        • C:\Users\Admin\AppData\Local\Temp\Kjc7Aakhi7.bat

          Filesize

          188B

          MD5

          fe2eef556651ba2b0cae01b894c0a95d

          SHA1

          b8aa083036d5e6daa38b2f66fde65cb2a1395c7d

          SHA256

          ebe754b9952acb8fafb0792d54cf8a8f1568ee7f4200ebc74759557bba7694c4

          SHA512

          b851d4babe549504a81fa60b223120a708476025e24b2e004b1627a9ead798d582089028d3bc1845f179b6e756fbba276ae4e6d2d4a73628e9ce13278a2fb3f1

        • C:\Users\Admin\AppData\Local\Temp\ah1HAoUpid.bat

          Filesize

          248B

          MD5

          f5afd4b74542a9786b95fd78fd1ae4fa

          SHA1

          b9fff46c4b1d9ecae5c8fe205b6ec6d277d8a5fe

          SHA256

          805d3d37e5e195d1a90a368ad5539f28731120b1359c489d42e33723a9f79c22

          SHA512

          d2e83efa8a30f21d1ab32352efe12215a02ac666f55685708a4a11d30a00c98678a4883c2c206365ef302341d855a3f9f16b4a000fcb875eb07a2ef6e71f0b08

        • C:\Windows\System32\wlidres\RuntimeBroker.exe

          Filesize

          2.0MB

          MD5

          c07cdd8d27b5b968b06166ceddcfd35a

          SHA1

          419905135ad7276f36edd5654ff50643875d52b3

          SHA256

          6b350fefc7d6ca79ca3e4cef39b4e71e7459d98ef213693ae3cec2c1b1d03863

          SHA512

          01ddba53ed10452aeefde7aa2bcb289d75d5ce90fe0771183d5abc5f3a178d20b5495381084e75e858130bf31dbdd33edf82d51c96d1e4a99ee4c21bf97327ed

        • memory/1240-18-0x00007FFF8B110000-0x00007FFF8BBD1000-memory.dmp

          Filesize

          10.8MB

        • memory/1240-0-0x00007FFF8B113000-0x00007FFF8B115000-memory.dmp

          Filesize

          8KB

        • memory/1240-4-0x00007FFF8B110000-0x00007FFF8BBD1000-memory.dmp

          Filesize

          10.8MB

        • memory/1240-1-0x0000000000FB0000-0x00000000011C2000-memory.dmp

          Filesize

          2.1MB

        • memory/3820-52-0x000000001B9F0000-0x000000001B9FE000-memory.dmp

          Filesize

          56KB

        • memory/3820-53-0x000000001BD00000-0x000000001BD56000-memory.dmp

          Filesize

          344KB

        • memory/3820-54-0x000000001BD50000-0x000000001BD5A000-memory.dmp

          Filesize

          40KB

        • memory/3820-55-0x000000001BD60000-0x000000001BD68000-memory.dmp

          Filesize

          32KB

        • memory/3820-56-0x000000001BDB0000-0x000000001BDBC000-memory.dmp

          Filesize

          48KB

        • memory/3820-57-0x000000001BDA0000-0x000000001BDA8000-memory.dmp

          Filesize

          32KB

        • memory/3820-58-0x000000001BD70000-0x000000001BD78000-memory.dmp

          Filesize

          32KB