Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 04:25

General

  • Target
    update2.exe
  • Size 2.4MB
  • Sample260703-e2efjabt7t
  • SHA256 94ffe61fb9619a00d8c1066dc8728df2af733f0b9ca8783a93ecbe1e52e59562
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Uses browser remote debugging 2 TTPs 5 IoCs

    Can be used control the browser and steal sensitive information such as credentials and session cookies.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 IoCs

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

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

    Enumerate browser information.

  • 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.

  • System Time Discovery 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update2.exe
    "C:\Users\Admin\AppData\Local\Temp\update2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\F7EgVCAVlH09YnG\vshost.exe
      "C:\Users\Admin\AppData\Local\Temp\\F7EgVCAVlH09YnG\vshost.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2440
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --remote-debugging-port=9222 --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --profile-directory="Default" --headless --disable-gpu
        3⤵
        • Uses browser remote debugging
        • Drops file in Windows directory
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4480
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=139.0.7258.155 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=139.0.3405.125 --initial-client-data=0x25c,0x260,0x264,0x258,0x28c,0x7ffe8777c188,0x7ffe8777c194,0x7ffe8777c1a0
          4⤵
            PID:852
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --headless --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --use-gl=angle --use-angle=swiftshader-webgl --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2396 /prefetch:2
            4⤵
              PID:2012
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2452 /prefetch:11
              4⤵
              • System Time Discovery
              PID:3092
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3132 /prefetch:13
              4⤵
                PID:4140
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --pdf-upsell-enabled --force-high-res-timeticks=disabled --remote-debugging-port=9222 --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3556 /prefetch:1
                4⤵
                • Uses browser remote debugging
                PID:3804
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --instant-process --pdf-upsell-enabled --force-high-res-timeticks=disabled --remote-debugging-port=9222 --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=3560 /prefetch:1
                4⤵
                • Uses browser remote debugging
                PID:2812
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --pdf-upsell-enabled --force-high-res-timeticks=disabled --remote-debugging-port=9222 --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=4152 /prefetch:1
                4⤵
                • Uses browser remote debugging
                PID:3156
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --extension-process --renderer-sub-type=extension --pdf-upsell-enabled --force-high-res-timeticks=disabled --remote-debugging-port=9222 --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=4156 /prefetch:9
                4⤵
                • Uses browser remote debugging
                PID:5588
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=PooledProcess2 --lang=en-US --service-sandbox-type=utility --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --force-high-res-timeticks=disabled --always-read-main-dll --field-trial-handle=2400,i,2149406352581745789,9721975411499710786,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=5288 /prefetch:14
                4⤵
                  PID:3284
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c timeout /t 3 /nobreak & rd /s /q "C:\Users\Admin\AppData\Local\Temp\F7EgVCAVlH09YnG"
                3⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:1908
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 3 /nobreak
                  4⤵
                  • System Location Discovery: System Language Discovery
                  • Delays execution with timeout.exe
                  PID:5208
          • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
            1⤵
              PID:4204

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 d392040b151e037bdd4b8dd90263b9fe3dac01f8dd499aef3ecb25759036c141
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 335d46e82e7827c9bbdf75dc74cf8a19c6cfc1d480ba1c0150bd140253b36afe
                  • MD5 SHA1 SHA512 TLSH

                  Edge Profile.ico

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Edge Profile.ico
                  • Size 70KB
                  • SHA256 31a226211c491e1b0832d4cd3cf34d97165e24a7ce4ec655259cd188f3a2bd88
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  SCT Auditing Pending Reports

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

                  Web Data

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Web Data
                  • Size 256KB
                  • SHA256 769a3eb5e4f91baf54eacfea3aa594d2de7b961d6407012165522c65e4984319
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                  • Size 38KB
                  • SHA256 3822fdd226cea5285e75bcb03e03acc0b575163ee18e0ff7b893023a2720ab25
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  vshost.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\F7EgVCAVlH09YnG\vshost.exe
                  • Size 2.4MB
                  • SHA256 94ffe61fb9619a00d8c1066dc8728df2af733f0b9ca8783a93ecbe1e52e59562
                  • MD5 SHA1 SHA512 SSDEEP TLSH