Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/07/2026, 22:31

General

  • Target
    FNLB.exe
  • Size 164.3MB
  • Sample260730-2fvxqagf63
  • SHA256 83d182697c329eacd037d26ecea81c0359f8ae6c1e000388fcb7f79270820953
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FNLB.exe
    "C:\Users\Admin\AppData\Local\Temp\FNLB.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Users\Admin\AppData\Local\Temp\FNLB.exe
      "C:\Users\Admin\AppData\Local\Temp\FNLB.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\fnlb" --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --field-trial-handle=1840,i,7638413357903506389,11980220124561442023,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit --variations-seed-version --mojo-platform-channel-handle=1836 /prefetch:2
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1140
    • C:\Users\Admin\AppData\Local\Temp\FNLB.exe
      "C:\Users\Admin\AppData\Local\Temp\FNLB.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\fnlb" --field-trial-handle=1840,i,7638413357903506389,11980220124561442023,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit --variations-seed-version --mojo-platform-channel-handle=2032 /prefetch:3
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2160
    • C:\Users\Admin\AppData\Local\Temp\FNLB.exe
      "C:\Users\Admin\AppData\Local\Temp\FNLB.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\fnlb" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --field-trial-handle=1840,i,7638413357903506389,11980220124561442023,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit --variations-seed-version --mojo-platform-channel-handle=2944 /prefetch:1
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      PID:832
    • C:\Users\Admin\AppData\Local\Temp\FNLB.exe
      "C:\Users\Admin\AppData\Local\Temp\FNLB.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --user-data-dir="C:\Users\Admin\AppData\Roaming\fnlb" --gpu-preferences=UAAAAAAAAADoAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAABCAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --field-trial-handle=1840,i,7638413357903506389,11980220124561442023,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit --variations-seed-version --mojo-platform-channel-handle=4268 /prefetch:8
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3752

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        default.dic

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic
        • Size 2B
        • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
        • MD5 SHA1 SHA512

        the-real-index

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Code Cache\js\index-dir\the-real-index
        • Size 48B
        • SHA256 719d7bd49ef569fcd85bafd28c34e2f391aa506dbb58db85a974776ee35c777e
        • MD5 SHA1 SHA512

        the-real-index

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Code Cache\js\index-dir\the-real-index
        • Size 552B
        • SHA256 2ea366e6ab19b450e2f7a24efe3aabc86704ebc0530297594d27b13ea1825727
        • MD5 SHA1 SHA512 TLSH

        data_1

        • Path C:\Users\Admin\AppData\Roaming\fnlb\DawnWebGPUCache\data_1
        • Size 264KB
        • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
        • MD5 SHA1 SHA512 SSDEEP

        data_0

        • Path C:\Users\Admin\AppData\Roaming\fnlb\GPUCache\data_0
        • Size 8KB
        • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
        • MD5 SHA1 SHA512 SSDEEP

        data_2

        • Path C:\Users\Admin\AppData\Roaming\fnlb\GPUCache\data_2
        • Size 8KB
        • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
        • MD5 SHA1 SHA512 SSDEEP

        data_3

        • Path C:\Users\Admin\AppData\Roaming\fnlb\GPUCache\data_3
        • Size 8KB
        • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
        • MD5 SHA1 SHA512 SSDEEP

        Network Persistent State

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Network\Network Persistent State
        • Size 2KB
        • SHA256 9107068de05cfd66427cdbdf608b4a304fb647b6abe5ae9137dc37885b56d414
        • MD5 SHA1 SHA512 TLSH

        Network Persistent State~RFe59a0da.TMP

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Network\Network Persistent State~RFe59a0da.TMP
        • Size 59B
        • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
        • MD5 SHA1 SHA512 TLSH

        Preferences

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Preferences
        • Size 57B
        • SHA256 be4b8924ab38e8acf350e6e3b9f1f63a1a94952d8002759acd6946c4d5d0b5de
        • MD5 SHA1 SHA512 TLSH

        Preferences~RFe58b570.TMP

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Preferences~RFe58b570.TMP
        • Size 112B
        • SHA256 bafe3c036503060748708d1df50cf99f450b738ae5836834366e3915ce373234
        • MD5 SHA1 SHA512 TLSH

        CURRENT

        • Path C:\Users\Admin\AppData\Roaming\fnlb\Session Storage\CURRENT
        • Size 16B
        • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
        • MD5 SHA1 SHA512

        memory/3752-207-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-208-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-209-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-213-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-215-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-219-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-218-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-217-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-216-0x0000000010AF0000-0x0000000010AF1000-memory.dmp

        memory/3752-214-0x0000000010AF0000-0x0000000010AF1000-memory.dmp