Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-11-2024 12:29

General

  • Target

    5216ca61384f1d0eaa9b873e0b756f0b.exe

  • Size

    1.1MB

  • MD5

    5216ca61384f1d0eaa9b873e0b756f0b

  • SHA1

    c29692709f869ebc5743f561c8f3975b2a2d5ae9

  • SHA256

    87a4b8833cd4cb394e3b19b1672491575466fe8b0afb935b7d9363a1cbaca59d

  • SHA512

    8dce4092b5a9c10309228a55f0a9a6d3508eae2f1f8bf26e2196f4426398d35d2618cc001d5665be5b24cfb138c46153c74b3b56e37d26e8ec7b8c0ebbd11758

  • SSDEEP

    24576:U2G/nvxW3Ww0t7EJyn5ySinOYEI09IlOmLdRz4:UbA307EJ3tEI06Rs

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 33 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 7 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 33 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 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\5216ca61384f1d0eaa9b873e0b756f0b.exe
    "C:\Users\Admin\AppData\Local\Temp\5216ca61384f1d0eaa9b873e0b756f0b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Msdhcp\kYflM234aT9Hkuk3JQCzywjVnA9.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1124
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Msdhcp\tQvStNv.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Msdhcp\MsWebfont.exe
          "C:\Msdhcp\MsWebfont.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2100
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\ADdO9VEAN2.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2024
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:2364
              • C:\Windows\DigitalLocker\lsm.exe
                "C:\Windows\DigitalLocker\lsm.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2804
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2888
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2644
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 13 /tr "'C:\Msdhcp\cmd.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Msdhcp\cmd.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 6 /tr "'C:\Msdhcp\cmd.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2324
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2304
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1028
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\Start Menu\WMIADAP.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2028
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAP" /sc ONLOGON /tr "'C:\Users\All Users\Start Menu\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1684
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\Start Menu\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2036
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\cmd.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2472
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\MSOCache\All Users\cmd.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2004
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\cmd.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 "IdleI" /sc MINUTE /mo 13 /tr "'C:\Msdhcp\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2836
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Msdhcp\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2844
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Msdhcp\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 9 /tr "'C:\Windows\DigitalLocker\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2680
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\DigitalLocker\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1864
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 8 /tr "'C:\Windows\DigitalLocker\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 "smsss" /sc MINUTE /mo 5 /tr "'C:\Windows\PCHEALTH\ERRORREP\QSIGNOFF\smss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1880
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\PCHEALTH\ERRORREP\QSIGNOFF\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2188
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Windows\PCHEALTH\ERRORREP\QSIGNOFF\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1912
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Program Files\MSBuild\Microsoft\winlogon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\MSBuild\Microsoft\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1868
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\Program Files\MSBuild\Microsoft\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2140
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 14 /tr "'C:\Windows\TAPI\WMIADAP.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2816
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAP" /sc ONLOGON /tr "'C:\Windows\TAPI\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:448
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 9 /tr "'C:\Windows\TAPI\WMIADAP.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:496
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Journal\it-IT\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2428
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files\Windows Journal\it-IT\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1516
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Journal\it-IT\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1292

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Msdhcp\kYflM234aT9Hkuk3JQCzywjVnA9.vbe

      Filesize

      190B

      MD5

      4879ca936544d01129cb0dec0b708d3d

      SHA1

      53122a833a136039a3c3ace69fff24fb10e6e6c5

      SHA256

      3db689b9b2dbb3730a26f8b7a4d9e9724aac2c24810015e41c1b5ba73681a724

      SHA512

      8097473a86ed3d72fe70ae1fe269f217632a36d27f074ba4317fd98d529cd390ee6c890e560a8728e386158b8ea83d3f6c1d9a739dbe282e7e0bac1052b7e47c

    • C:\Msdhcp\tQvStNv.bat

      Filesize

      25B

      MD5

      1b3f947bdc497eb9f7fa4d4f975e3354

      SHA1

      c3114bc2b359b592dda481bf881c64b45d15c641

      SHA256

      2e71a1366a0e31635d8c67f168aeefe58eaed85aaf91762c52d2da837232f4d3

      SHA512

      8552c68c08ce5f70c8d8b8e360dfdf607142684fa046d1c434207d07cbf5a6262ff5d8b505ce8413d76da7e5954db4fd7d9f15bea7fe367ad2d0a731a2983ded

    • C:\Users\Admin\AppData\Local\Temp\ADdO9VEAN2.bat

      Filesize

      197B

      MD5

      1a1d718e675124386a444a7bf040c60f

      SHA1

      fb3fd7434f33b2b180551d53f748a4cc33591037

      SHA256

      0f38ab94e1872fb9ef31e2bc9ad61bf16295f22478d06ccaeefaa5f87b260ea5

      SHA512

      02f2025d8efed0f4cf730da9254fb46709c77d4f307ee2f52087b68a3221815fc00cfb60b160f67b47a407f8f76541c06816fac6984315f56926a7d97d7e59f6

    • \Msdhcp\MsWebfont.exe

      Filesize

      827KB

      MD5

      ec7c50f1bebb1402b88fa756af1b3f4c

      SHA1

      82e1c02d54d7212efe8c6cdb40b811a134900bf0

      SHA256

      9d96e194f9c8eaae557943041df2f29f88a4557b4f2e79b2d89a149ad8e93ab1

      SHA512

      97bb7773be2d5471ba49914f2ab698e4c0142a001cd5fface4fca189cea22cb77c856bd314d97b574216e756219a72c541efa7084ffdbb924a2b578c3aa1bf02

    • memory/1612-43-0x00000000008E0000-0x00000000009B6000-memory.dmp

      Filesize

      856KB

    • memory/2100-13-0x0000000000260000-0x0000000000336000-memory.dmp

      Filesize

      856KB