Overview

overview

10

Static

static

10

KNRLBOOTSTRAPPER.exe

windows10-2004-x64

10

Resubmissions

11-08-2024 02:35

240811-c3dvaa1djl 10

18-07-2024 20:18

240718-y3j7ysxfna 10

Analysis

  • max time kernel
    166s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 02:35

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General

  • Target

    KNRLBOOTSTRAPPER.exe

  • Size

    468KB

  • MD5

    25dd17cdd4cb0ea687bacc96f11df77f

  • SHA1

    e35e77bbdea42a36fe4d2f456022ab07ddc1a65f

  • SHA256

    8fb40c856daf038d45a2d5b5f93bfa48987d54493b43ac76c16a7fceb7011f86

  • SHA512

    3144c457786e9764d8ea026d1c312e90e5158507b1133e3e477922c54a721ac29a1014d8103aba592fe2b65e831dbb8d5362968c588824894afe77de04968799

  • SSDEEP

    6144:SWV91Ub+4jU83nN6xMrSTpNx+NgrnpGH2bRr:SiTXx

Score
10/10
xenoratdiscoveryrattrojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    5000

  • install_path

    nothingset

  • port

    4444

  • startup_name

    Xeno_manager.exe

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

    trojanratxenorat
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe
    "C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "Xeno_manager.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp956A.tmp" /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2408
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3416
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4716
    • C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe
      "C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:452
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "Xeno_manager.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp178A.tmp" /F
        2⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3904
    • C:\Windows\System32\enu-0q.exe
      "C:\Windows\System32\enu-0q.exe"
      1⤵
        PID:2000
      • C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe
        "C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe"
        1⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /Create /TN "Xeno_manager.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6F98.tmp" /F
          2⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2152
      • C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe
        "C:\Users\Admin\AppData\Local\Temp\KNRLBOOTSTRAPPER.exe"
        1⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4896
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /Create /TN "Xeno_manager.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA34B.tmp" /F
          2⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1580

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp956A.tmp
        Filesize

        1KB

        MD5

        2b3aa48a0fac3f7785fd4459aed94896

        SHA1

        5be79583c2c86b1bd4b0a349c7d2f6de9c8c9dee

        SHA256

        2922d985008b899643fafd568599e9e5f3556aee099ecb6c298f959e750240b6

        SHA512

        79ce866b4cbeb774e6cc3bce4e3024f27d65ffb896cee6c36ddba7757ef4b9ae3f8fd7ac6c7777be1880b2bc7bc636bc0b37a72fa7c197fd6fc420efc47c18d0

        Download Submit

      • memory/2548-0-0x000000007489E000-0x000000007489F000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2548-1-0x0000000000450000-0x00000000004CC000-memory.dmp

        Filesize

        496KB

        Download

      • memory/2548-2-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/2548-22-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/2548-19-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/2548-18-0x000000007489E000-0x000000007489F000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-17-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-11-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-16-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-15-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-14-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-13-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-12-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-5-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-6-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3416-7-0x000001AC49120000-0x000001AC49121000-memory.dmp

        Filesize

        4KB

        Download