Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2025, 14:18

General

  • Target

    59435c6b2d1bd3dfd8daf2feae93cdcba6f1e3bbebe2a6012fe9e82671279573.exe

  • Size

    1.3MB

  • MD5

    c4c3dda932f1f288a7091eb1b6bfcc8f

  • SHA1

    63216a8fc66477860834a280b812b170863af11a

  • SHA256

    59435c6b2d1bd3dfd8daf2feae93cdcba6f1e3bbebe2a6012fe9e82671279573

  • SHA512

    cf6ed58e0942d09663627a79464bf77eccedfa79082fe12724a2fc022edd56c2107fae25be23bc14c070354583e06335dad635974a6a2f9d74c80ec6ea35b269

  • SSDEEP

    24576:mM0FvyGsOBDr8gCy5viNtXY91McnOTlRLzrwlKfPGGPwOQVC8+zJ:F0FvJzgSiNR5VzrwMfuG4OQ3+zJ

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.

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Drops file in Program Files 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 4 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 33 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 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\59435c6b2d1bd3dfd8daf2feae93cdcba6f1e3bbebe2a6012fe9e82671279573.exe
    "C:\Users\Admin\AppData\Local\Temp\59435c6b2d1bd3dfd8daf2feae93cdcba6f1e3bbebe2a6012fe9e82671279573.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Users\Admin\AppData\Roaming\Snace.exe
      "C:\Users\Admin\AppData\Roaming\Snace.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3260
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\reviewWinrefperfsvc\NHaFmwJEQMsxRcKOggYq.vbe"
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3412
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\reviewWinrefperfsvc\JyFFgHmHFgHO7gB8l.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2812
          • C:\reviewWinrefperfsvc\WebRuntimeDll.exe
            "C:\reviewWinrefperfsvc\WebRuntimeDll.exe"
            5⤵
            • 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:2156
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\GdfGRv0ydm.bat"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1680
              • C:\Windows\system32\w32tm.exe
                w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                7⤵
                  PID:216
                • C:\Program Files (x86)\Windows NT\TableTextService\en-US\dwm.exe
                  "C:\Program Files (x86)\Windows NT\TableTextService\en-US\dwm.exe"
                  7⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: GetForegroundWindowSpam
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4320
      • C:\Users\Admin\AppData\Roaming\Змейка by ДК and AS.exe
        "C:\Users\Admin\AppData\Roaming\Змейка by ДК and AS.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1220
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows NT\TableTextService\en-US\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1740
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\TableTextService\en-US\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows NT\TableTextService\en-US\dwm.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 "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Defender\it-IT\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4752
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\it-IT\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3736
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Defender\it-IT\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1556
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 10 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3976
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4072
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 14 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4964
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 9 /tr "'C:\d9c22b4eaa3c0b9c12c7\SppExtComObj.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4620
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\d9c22b4eaa3c0b9c12c7\SppExtComObj.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1980
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 11 /tr "'C:\d9c22b4eaa3c0b9c12c7\SppExtComObj.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 "unsecappu" /sc MINUTE /mo 13 /tr "'C:\d9c22b4eaa3c0b9c12c7\unsecapp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1496
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\d9c22b4eaa3c0b9c12c7\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2240
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 11 /tr "'C:\d9c22b4eaa3c0b9c12c7\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1128
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4184
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:688
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4356
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1948
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3740
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 8 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\RuntimeBroker.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4792
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\dfe2e59cddd00040f555dab607351a1d\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1776
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 8 /tr "'C:\reviewWinrefperfsvc\StartMenuExperienceHost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1228
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\reviewWinrefperfsvc\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4048
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 5 /tr "'C:\reviewWinrefperfsvc\StartMenuExperienceHost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1468
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Common Files\Services\upfc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4140
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Services\upfc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3520
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Common Files\Services\upfc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3396
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 6 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\TrustedInstaller.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4628
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstaller" /sc ONLOGON /tr "'C:\dfe2e59cddd00040f555dab607351a1d\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3088
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 10 /tr "'C:\dfe2e59cddd00040f555dab607351a1d\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2012

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\GdfGRv0ydm.bat

      Filesize

      229B

      MD5

      f798bb4def99219cb8ec72ed20058ee6

      SHA1

      d94463e0fe480825d7f762697f9f4d0cc6d083f3

      SHA256

      f8d2cf1ed48fe1a79aefa1f0dafe922de4c6a70f35562124e577be82038640b5

      SHA512

      ea50272027086fbcfd98f005eeecc62efc50dc78045bab2f79f0d08c478ec3944c1c50f03881a0dec4d60256a8cfdb32e6ee26b2039f95f878cabc4547cf7442

    • C:\Users\Admin\AppData\Roaming\Snace.exe

      Filesize

      1.1MB

      MD5

      886ec8f57236b11553cbb8de98cf1b69

      SHA1

      f72c049fcd8baa73e74d70c79d3f3b3045b8cd90

      SHA256

      958a4807d4c38b89256f1094b72703e7bdec8ca424443e9db71cc271ec75200e

      SHA512

      6284b75c1f9f8b30926e5e1c6a2a0925ef2aeb5202ac706b9565a226199de6b249e5f01a523df96d79f943986a642d420ecf077590d8f03ceba060eb2fa36114

    • C:\Users\Admin\AppData\Roaming\Змейка by ДК and AS.exe

      Filesize

      204KB

      MD5

      89a940000e5a7562ca32fe47e62d9ab3

      SHA1

      5afb63a26e2ac622e265e1279323a349c71e0b2d

      SHA256

      819bca0c3d379cb4375fd72199957791edab39e76eeec2f3be403275009787e8

      SHA512

      2a3f1818ef815a9a5ce944621775c33774f748877fd7baf858d1224a1beba2aac707354356d717b2143e6ef2877ce63fd7e41a5d083fb3d93b9887452f466553

    • C:\reviewWinrefperfsvc\JyFFgHmHFgHO7gB8l.bat

      Filesize

      42B

      MD5

      3f6e29bbbf283829bb2dc00aeb600bfb

      SHA1

      064b543066405b411d9713fdc3d042bcebc6a984

      SHA256

      775dc60b73fa023ba0a7d4b394a4d911c74af2951e0f6379d337ee566a81cd2b

      SHA512

      9d8a79cbebd80bb4d7b37f8106b1556a06be25cb89d70593f1b4a1b2111a3088bc08b6115bef9db2df408d22f5dc06644abf6e4a5edcaff385c9f033a17e7865

    • C:\reviewWinrefperfsvc\NHaFmwJEQMsxRcKOggYq.vbe

      Filesize

      213B

      MD5

      60bb10e1b4c6be7987af6cdb164a2ea7

      SHA1

      452bd2a19a71b7b0138cebc399013e7fd5faf992

      SHA256

      139fcb96f7b9fce0dde74056a75940d5cd131571a1ce3005476efec24824df39

      SHA512

      09cc5f1de91462474618ce6bc9bf6fbc3f8e9961cc27548428d146f274570a7d8f5a6562d3f66f7fe874cdbd2ecc720f933b3122bb41b25415201e3a7275ec96

    • C:\reviewWinrefperfsvc\WebRuntimeDll.exe

      Filesize

      827KB

      MD5

      6307ea5399fdc7482c17c3ac5e287d13

      SHA1

      9861a738275262a084500d39743674a274c8a396

      SHA256

      8e1afc545da625009596890cb867865d1073ca7ac96efae987663305f53c3e3b

      SHA512

      369e88b1de6b0824e52253a25aed270bceb607265c7040e3324d8b323b719af6cbbc273f408ce9271005e424fa24be9d6db4a32b72a754b5bb2747a09ad97d42

    • memory/2156-36-0x0000000000350000-0x0000000000426000-memory.dmp

      Filesize

      856KB

    • memory/3032-0-0x00007FFF4DC63000-0x00007FFF4DC65000-memory.dmp

      Filesize

      8KB

    • memory/3032-1-0x0000000000D60000-0x0000000000EBC000-memory.dmp

      Filesize

      1.4MB