Overview

overview

10

Static

static

10

fn.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    44s
  • max time network
    48s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250410-en
  • resource tags

    arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    15/04/2025, 03:45

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General

  • Target

    fn.exe

  • Size

    45KB

  • MD5

    224ccb2529301b657df7c6bcc7ac6613

  • SHA1

    1743e1b819c6a20ec5b8db1024a4f460160419e7

  • SHA256

    7d5ff178c46801beba098d2705798c99392e15dbc9ccdef3e11ed737d9dfb93d

  • SHA512

    c09509172cb3a662ba8cf5b1df1a4c45dc014c59388f219ed819e08890bd522e4c367e46e91740c1cf636f419e30b66f7022a23216a108e3132905a4ca319307

  • SSDEEP

    768:FdhO/poiiUcjlJInbzH9Xqk5nWEZ5SbTDagWI7CPW5N:bw+jjgn3H9XqcnW85SbTpWIl

Score
10/10
xenoratdiscoverypersistenceprivilege_escalationrattrojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    10

  • install_path

    temp

  • port

    4444

  • startup_name

    fortnite

Signatures

  • Detect XenoRat Payload 2 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

    trojanratxenorat
  • Xenorat family
    xenorat
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 2 IoCs
    persistence
  • 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.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fn.exe
    "C:\Users\Admin\AppData\Local\Temp\fn.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Users\Admin\AppData\Local\Temp\XenoManager\fn.exe
      "C:\Users\Admin\AppData\Local\Temp\XenoManager\fn.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5676
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "fortnite" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC796.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1716
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2340
    • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe
      "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe"
      1⤵
      • Modifies system executable filetype association
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4672

    Network

    MITRE ATT&CK Enterprise v16

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fn.exe.log
      Filesize

      226B

      MD5

      1294de804ea5400409324a82fdc7ec59

      SHA1

      9a39506bc6cadf99c1f2129265b610c69d1518f7

      SHA256

      494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

      SHA512

      033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\47CNJ3GN\update100[1].xml
      Filesize

      726B

      MD5

      53244e542ddf6d280a2b03e28f0646b7

      SHA1

      d9925f810a95880c92974549deead18d56f19c37

      SHA256

      36a6bd38a8a6f5a75b73caffae5ae66dfabcaefd83da65b493fa881ea8a64e7d

      SHA512

      4aa71d92ea2c46df86565d97aac75395371d3e17877ab252a297b84dca2ab251d50aaffc62eab9961f0df48de6f12be04a1f4a2cbde75b9ae7bcce6eb5450c62

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\72VQWE2Y\PreSignInSettingsConfig[1].json
      Filesize

      63KB

      MD5

      e516a60bc980095e8d156b1a99ab5eee

      SHA1

      238e243ffc12d4e012fd020c9822703109b987f6

      SHA256

      543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7

      SHA512

      9b51e99ba20e9da56d1acc24a1cf9f9c9dbdeb742bec034e0ff2bc179a60f4aff249f40344f9ddd43229dcdefa1041940f65afb336d46c175ffeff725c638d58

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\XenoManager\fn.exe
      Filesize

      45KB

      MD5

      224ccb2529301b657df7c6bcc7ac6613

      SHA1

      1743e1b819c6a20ec5b8db1024a4f460160419e7

      SHA256

      7d5ff178c46801beba098d2705798c99392e15dbc9ccdef3e11ed737d9dfb93d

      SHA512

      c09509172cb3a662ba8cf5b1df1a4c45dc014c59388f219ed819e08890bd522e4c367e46e91740c1cf636f419e30b66f7022a23216a108e3132905a4ca319307

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\tmpC796.tmp
      Filesize

      1KB

      MD5

      43f3fce8a4898ffc362d0ad83c108978

      SHA1

      e76099d46f3fc12376dd3ca421ef89de4c94b6ec

      SHA256

      b5ae21bab93936c4e32e82028139b93b0dceb39a5bd66b7b2e538ed45b8c7870

      SHA512

      9e08ea4a0d6e3ea20b10521fda6f262d0e4837114bfa09a07c0ca449f762bfaf30e991a292a38805b0b700f59ada964f5d64b4f1e596a49d322d45c50a0db585

      Download Submit

    • memory/3952-0-0x000000007466E000-0x000000007466F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3952-1-0x0000000000740000-0x0000000000752000-memory.dmp

      Filesize

      72KB

      Download

    • memory/5676-15-0x0000000074660000-0x0000000074E11000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/5676-16-0x0000000074660000-0x0000000074E11000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/5676-19-0x0000000074660000-0x0000000074E11000-memory.dmp

      Filesize

      7.7MB

      Download