Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 18:00

General

  • Target
    file.exe
  • Size 3.1MB
  • Sample260522-wlmkmsct3m
  • SHA256 c8db13c15ad99cc002dda644384e730497972a9995510918f5fc7e2c071b9a0f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads ssh keys stored on the system 2 TTPs

    Tries to access SSH used by SSH programs.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • UPX packed file 16 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:5176
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --headless --disable-gpu --no-sandbox --disable-dev-shm-usage
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015 /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Crashpad --metrics-dir=C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015 --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x1c4,0x1c8,0x1cc,0x190,0x1d0,0x7ffad0aac728,0x7ffad0aac734,0x7ffad0aac740
        3⤵
          PID:3640
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-sandbox --headless --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --use-gl=angle --use-angle=swiftshader-webgl --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=1904 /prefetch:2
          3⤵
            PID:3740
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --force-high-res-timeticks=disabled --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2088 /prefetch:11
            3⤵
            • System Time Discovery
            PID:3628
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-sandbox --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --force-high-res-timeticks=disabled --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2416 /prefetch:13
            3⤵
              PID:2032
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=6 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2916 /prefetch:1
              3⤵
                PID:2808
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=5 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2984 /prefetch:1
                3⤵
                  PID:5200
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=8 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3588 /prefetch:1
                  3⤵
                    PID:1628
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=9 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3668 /prefetch:9
                    3⤵
                      PID:5368
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=10 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3796 /prefetch:9
                      3⤵
                        PID:5304
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=11 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2980 /prefetch:1
                        3⤵
                          PID:5308
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=12 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3892 /prefetch:9
                          3⤵
                            PID:5552
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-sandbox --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --force-high-res-timeticks=disabled --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2912 /prefetch:14
                            3⤵
                              PID:804
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-sandbox --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --force-high-res-timeticks=disabled --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=476 /prefetch:14
                              3⤵
                                PID:744
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=15 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=5588 /prefetch:1
                                3⤵
                                  PID:5872
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-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=16 --field-trial-handle=1908,i,11533341669554071265,1255238203258937464,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=5628 /prefetch:1
                                  3⤵
                                    PID:5596
                                • C:\Windows\system32\netsh.exe
                                  netsh wlan show profiles
                                  2⤵
                                  • Event Triggered Execution: Netsh Helper DLL
                                  • System Network Configuration Discovery: Wi-Fi Discovery
                                  PID:3876
                              • C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\WinSpecOS.exe
                                "C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\WinSpecOS.exe"
                                1⤵
                                • Drops startup file
                                • Executes dropped EXE
                                • Adds Run key to start application
                                PID:3412
                              • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                                "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                                1⤵
                                  PID:4544
                                • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                                  "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                                  1⤵
                                    PID:5012

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        data_1

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\DawnWebGPUCache\data_1
                                        • Size 264KB
                                        • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                                        • MD5 SHA1 SHA512 SSDEEP

                                        MANIFEST-000001

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\Extension Scripts\MANIFEST-000001
                                        • Size 41B
                                        • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                                        • MD5 SHA1 SHA512

                                        data_0

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\GPUCache\data_0
                                        • Size 8KB
                                        • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                                        • MD5 SHA1 SHA512 SSDEEP

                                        data_2

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\GPUCache\data_2
                                        • Size 8KB
                                        • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                                        • MD5 SHA1 SHA512 SSDEEP

                                        data_3

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\GPUCache\data_3
                                        • Size 8KB
                                        • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                                        • MD5 SHA1 SHA512 SSDEEP

                                        SCT Auditing Pending Reports

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\Network\SCT Auditing Pending Reports
                                        • Size 2B
                                        • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                        • MD5 SHA1 SHA512

                                        CURRENT

                                        • Path C:\Users\Admin\AppData\Local\Temp\HeadlessChrome5040240703015\Default\Sync Data\LevelDB\CURRENT
                                        • Size 16B
                                        • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                        • MD5 SHA1 SHA512

                                        WinSpecOS.exe

                                        • Path C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\WinSpecOS.exe
                                        • Size 3.1MB
                                        • SHA256 c8db13c15ad99cc002dda644384e730497972a9995510918f5fc7e2c071b9a0f
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        memory/3412-7-0x00007FF7ACD60000-0x00007FF7AF6AB000-memory.dmp

                                        memory/3412-12-0x00007FF7ACD60000-0x00007FF7AF6AB000-memory.dmp

                                        memory/5176-38-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-8-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-42-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-41-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-39-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-40-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-0-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-16-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-15-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-43-0x0000000244E40000-0x0000000248270000-memory.dmp

                                        memory/5176-169-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-196-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-197-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-198-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-199-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-200-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-201-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-202-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-203-0x00007FF783710000-0x00007FF78605B000-memory.dmp

                                        memory/5176-204-0x00007FF783710000-0x00007FF78605B000-memory.dmp