Analysis

  • user interaction
    yes
  • max time kernel
    50s
  • max time network
    45s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/10/2026, 09:22

General

  • Target
    FiveM.exe
  • Size 5.0MB
  • Sample261020-lb3trsys3j
  • SHA256 05a99a0067ddde35a8b6c92721fc8ee058ffe1cee9a9dceb2bafb1a8e2d92368
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Drops desktop.ini file(s) 1 IoCs
  • Network Service Discovery 1 TTPs 2 IoCs

    Attempt to gather information on host's network.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Executes dropped EXE 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 8 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 50 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FiveM.exe
    "C:\Users\Admin\AppData\Local\Temp\FiveM.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Modifies Control Panel
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4620
    • C:\Users\Admin\AppData\Local\Temp\CitizenFX.exe.new
      CitizenFX.exe.new -bootstrap "C:\Users\Admin\AppData\Local\Temp\FiveM.exe"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4596
      • C:\Users\Admin\AppData\Local\Temp\FiveM.exe
        "C:\Users\Admin\AppData\Local\Temp\FiveM.exe"
        3⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2640
        • C:\Users\Admin\AppData\Local\FiveM\FiveM.exe
          "C:\Users\Admin\AppData\Local\FiveM\FiveM.exe"
          4⤵
          • Drops desktop.ini file(s)
          • Executes dropped EXE
          • Reads the TCP/IP host and domain name from the registry
          • Modifies Control Panel
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4740
          • C:\Users\Admin\AppData\Local\FiveM\FiveM.app\data\cache\subprocess\FiveM_DumpServer
            "C:\Users\Admin\AppData\Local\FiveM\FiveM.app\data\cache\subprocess\FiveM_DumpServer" -dumpserver:2060 -parentpid:4740
            5⤵
            • Executes dropped EXE
            • Reads the TCP/IP host and domain name from the registry
            • Suspicious behavior: EnumeratesProcesses
            PID:1908
  • C:\Windows\System32\GameBarPresenceWriter.exe
    "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
    1⤵
    • Network Service Discovery
    PID:4056
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:2776
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
    1⤵
    • Checks processor information in registry
    • Modifies registry class
    PID:3460
  • C:\Windows\System32\GameBarPresenceWriter.exe
    "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
    1⤵
    • Network Service Discovery
    PID:2012
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:3808
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
    1⤵
    • Checks processor information in registry
    • Modifies registry class
    PID:2720
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:4052
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:3712
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
    1⤵
      PID:2440

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          CitizenFX.Core.Client.xml.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\clr2\lib\mono\4.5\ref\CitizenFX.Core.Client.xml.tmp
          • Size 6.6MB
          • SHA256 73035e37ee074f8f1d5dd9a1f5674bb30e0bb2d24ebd676bcfc8433663d89f49
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MsgPack.dll.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\clr2\lib\mono\4.5\ref\MsgPack.dll.tmp
          • Size 384KB
          • SHA256 872f9a0e93f652ec96b7b2ff4dd85737af09f3c1904c4675c76d79e9917aa1e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MsgPack.xml.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\clr2\lib\mono\4.5\ref\MsgPack.xml.tmp
          • Size 600KB
          • SHA256 3ad561cbcba9b7da8991a9132bc9a22a036d51570129e729f238393ba33b538d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.Reflection.Metadata.dll.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\clr2\lib\mono\4.5\ref\System.Reflection.Metadata.dll.tmp
          • Size 454KB
          • SHA256 652ded0ce5e153b85154ac65d00244aafb49e0fe8a958e2afb9c5bea83a957c0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          settings.meta.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\platform-2060\data\control\settings.meta.tmp
          • Size 37KB
          • SHA256 f9ae094812ce9fbd56b58dab7739451792aba8f56c5f21eee15ef96682b413a6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          settings.meta.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\platform-2944\data\control\settings.meta.tmp
          • Size 38KB
          • SHA256 7d01c11f35d87dd39327d7314c1a9563658c5a18fb5ae10abb485cbe856f5913
          • MD5 SHA1 SHA512 SSDEEP TLSH

          settings.meta.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\platform-3788\data\control\settings.meta.tmp
          • Size 46KB
          • SHA256 a35da765f0332a10150daa530506289fe5683e5afda6b7b70a362d7e66f0fd9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          release.txt

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\release.txt
          • Size 7B
          • SHA256 9527eac631ce25c2a76fd339ca926a2d7aef4fe193d72d202fe94b0d4253d8ac
          • MD5 SHA1 SHA512

          natives_21E43A33.lua.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\scripting\lua\natives_21E43A33.lua.tmp
          • Size 2.0MB
          • SHA256 75ff1b676fe1c16846f3a463c3920e2f9b8297851d713f37e65a204f647060dc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          natives_21E43A33.d.ts.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\scripting\v8\natives_21E43A33.d.ts.tmp
          • Size 2.3MB
          • SHA256 9e9e81bc60cbe5d2b40a0e79add23f6c0d1eaea7dce2712ae38504c4a84dc9d8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          natives_21E43A33.js.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\scripting\v8\natives_21E43A33.js.tmp
          • Size 2.1MB
          • SHA256 bd072c00cb50219bad8959d7efee5bdc8caf90bd876fe4e3142b28a9386280af
          • MD5 SHA1 SHA512 SSDEEP TLSH

          im3d.fxc.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\shaderz\win32_40_lq_final\im3d.fxc.tmp
          • Size 9KB
          • SHA256 be0c4a87833b062965bc2c2af4cedc30dd76d9cad10d996c2a5809de2f7e34c0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          outlinez.fxc.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\shaderz\win32_40_lq_final\outlinez.fxc.tmp
          • Size 4KB
          • SHA256 53aab937bc5573154a144ec115b14ab51d7a9bca485af71021ba5bb225756ee4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          outlinez_firm.fxc.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\shaderz\win32_40_lq_final\outlinez_firm.fxc.tmp
          • Size 4KB
          • SHA256 05df82e50fb5a00894a7f15c9fddc4235e8ae4aed37083297034e6e28a91a656
          • MD5 SHA1 SHA512 SSDEEP TLSH

          outlinez_mask.fxc.tmp

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\citizen\shaderz\win32_40_lq_final\outlinez_mask.fxc.tmp
          • Size 1KB
          • SHA256 925cac9047d439bcb5e6852fc58a759a64033ff27441ad02e7f8c2333da8423a
          • MD5 SHA1 SHA512 TLSH

          desktop.ini

          • Path C:\Users\Admin\AppData\Local\FiveM\FiveM.app\desktop.ini
          • Size 157B
          • SHA256 b1fe21f251cf7875783ea162ef86c2a5b5022a1c5157bbb7972b6b34e14ec08a
          • MD5 SHA1 SHA512 TLSH

          thumbcache_idx.db

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db
          • Size 28KB
          • SHA256 e551ba284fcb8bdae4eb2adb8b0cfdf877e115c48426c91ca01a19e06203588b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CitizenFX.exe.new

          • Path C:\Users\Admin\AppData\Local\Temp\CitizenFX.exe.new
          • Size 5.0MB
          • SHA256 ff0a30e2dd73270bbf11b9e3d9c8c9e40a2587e9fe306d980c8f9ef7148b3bf1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          FiveM.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\FiveM.lnk
          • Size 2KB
          • SHA256 32a569b930d8324152a7669f05e05d88bc032130659c51afeea789e29bb7c4ce
          • MD5 SHA1 SHA512 TLSH

          desktop.ini

          • Path C:\Users\Admin\Videos\Captures\desktop.ini
          • Size 190B
          • SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
          • MD5 SHA1 SHA512 TLSH