Resubmissions

16/05/2026, 16:16

260516-tqrdaafw7110

16/05/2026, 16:14

260516-tptr1sax7m10

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/05/2026, 16:14

General

  • Target
    Keygen_Corel2018.exe
  • Size 553KB
  • Sample260516-tptr1sax7m
  • SHA256 565c3243b1c9e203680c59a4482167428dcc6e5e88a37597e3d75bb4405362cb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xtremerat

C2
  • yourfearcig.no-ip.org

  • .org

  • 췅yourfearcig.no-ip.org

  • yourfearcig.no-ip.org

Signatures

  • Family: XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Detect XtremeRAT payload 3 IoCs
  • Drops startup file 3 IoCs
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 24 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 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Keygen_Corel2018.exe
    "C:\Users\Admin\AppData\Local\Temp\Keygen_Corel2018.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\X-F. 2018.exe
      "C:\Users\Admin\AppData\Local\Temp\X-F. 2018.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2824
    • C:\Users\Admin\AppData\Local\Temp\New Client.exe
      "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Delete /tn NYANP /F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1396
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3320
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Delete /tn NYAN /F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4792
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4648
    • C:\Users\Admin\AppData\Local\Temp\xserver.exe
      "C:\Users\Admin\AppData\Local\Temp\xserver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4588
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3728
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 512
          4⤵
          • Program crash
          PID:5064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 520
          4⤵
          • Program crash
          PID:2072
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
        3⤵
          PID:3836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3728 -ip 3728
      1⤵
        PID:908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3728 -ip 3728
        1⤵
          PID:3332
        • C:\Users\Admin\AppData\Local\Temp\New Client.exe
          "C:\Users\Admin\AppData\Local\Temp\New Client.exe" ..
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4456
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYANP /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2336
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 5
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1152
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYAN /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:244
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1328
        • C:\Users\Admin\AppData\Local\Temp\New Client.exe
          "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:912
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYANP /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2648
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 5
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:460
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYAN /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:1876
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1032
        • C:\Users\Admin\AppData\Local\Temp\New Client.exe
          "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1260
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYANP /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:1212
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 5
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3772
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Delete /tn NYAN /F
            2⤵
            • System Location Discovery: System Language Discovery
            PID:4016
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2260

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              New Client.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\New Client.exe.log
              • Size 499B
              • SHA256 a7843aa5bba920ad0e42aab49df6515973f8e57f150de6b11624d63a91fec37d
              • MD5 SHA1 SHA512 TLSH

              New Client.exe

              • Path C:\Users\Admin\AppData\Local\Temp\New Client.exe
              • Size 69KB
              • SHA256 eeff1a81178f33d0af388486fd2469501f015e6a8e54c95a58b8f07b4ba84f2c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              X-F. 2018.exe

              • Path C:\Users\Admin\AppData\Local\Temp\X-F. 2018.exe
              • Size 379KB
              • SHA256 ef951d1a65d69bab671827532231bed21020ee50b6d3c70bcec670c877d629ef
              • MD5 SHA1 SHA512 SSDEEP TLSH

              xserver.exe

              • Path C:\Users\Admin\AppData\Local\Temp\xserver.exe
              • Size 33KB
              • SHA256 f9c6f639e5deb7bf523f11c64f96d0b12417a93e277f8e7b690edeaa94af9be6
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2824-38-0x0000000000400000-0x00000000004D2000-memory.dmp

              memory/2824-29-0x0000000000400000-0x00000000004D2000-memory.dmp

              memory/2824-21-0x00000000004D1000-0x00000000004D2000-memory.dmp

              memory/2824-43-0x0000000000400000-0x00000000004D2000-memory.dmp

              memory/2824-15-0x0000000000400000-0x00000000004D2000-memory.dmp

              memory/3000-30-0x0000000072C51000-0x0000000072C52000-memory.dmp

              memory/3000-32-0x0000000072C50000-0x0000000073201000-memory.dmp

              memory/3000-44-0x0000000072C50000-0x0000000073201000-memory.dmp

              memory/3728-31-0x0000000010000000-0x000000001004D000-memory.dmp

              memory/3728-35-0x0000000010000000-0x000000001004D000-memory.dmp

              memory/4588-28-0x0000000010000000-0x000000001004D000-memory.dmp

              memory/4588-34-0x0000000010000000-0x000000001004D000-memory.dmp