Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/09/2026, 17:04

General

  • Target
    Js8vt.exe
  • Size 16.4MB
  • Sample260930-vlflnatbja
  • SHA256 27ea5ce1201de4fa150e8fe019736674c142d988fa03ec2f82bc02e122f4cdec
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Time Discovery 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Js8vt.exe
    "C:\Users\Admin\AppData\Local\Temp\Js8vt.exe"
    1⤵
    • Checks BIOS information in registry
    PID:4860
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://appdata/
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --edge-skip-compat-layer-relaunch --single-argument http://appdata/
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4316
      • 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=0x234,0x238,0x23c,0x230,0x244,0x7ffeef65c188,0x7ffeef65c194,0x7ffeef65c1a0
        3⤵
          PID:1408
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=1924,i,14333063168961955112,17964510169420241029,262144 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=2284 /prefetch:2
          3⤵
            PID:4168
          • 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 --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2028,i,12388689820094045022,11500400770002040081,524288 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=2332 /prefetch:3
            3⤵
            • System Time Discovery
            PID:4076
          • 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 --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2572,i,12584490867969619489,12966338752116113578,524288 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=2756 /prefetch:8
            3⤵
              PID:2904
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=3476,i,5499467981317017877,3158067086319451406,2097152 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=3552 /prefetch:1
              3⤵
                PID:4644
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=3480,i,7662665671429815239,3423299511998423059,2097152 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=3556 /prefetch:1
                3⤵
                  PID:3776
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=4236,i,15826507927348268963,1169847112510707967,2097152 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=4244 /prefetch:1
                  3⤵
                    PID:3572
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --extension-process --renderer-sub-type=extension --pdf-upsell-enabled --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=4264,i,15074598909777220460,15806508666855293653,2097152 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=4280 /prefetch:2
                    3⤵
                      PID:3460
                    • 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 --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=3564,i,13233614825512458484,15912522312206491431,524288 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=5136 /prefetch:8
                      3⤵
                        PID:1200
                      • 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 --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5144,i,10489445751549616033,6417826967063276184,524288 --field-trial-handle=2288,i,17676957614933098023,7596391811776846189,262144 --variations-seed-version --mojo-platform-channel-handle=5156 /prefetch:8
                        3⤵
                          PID:4860
                    • 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:4164
                      • C:\Windows\System32\rundll32.exe
                        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                        1⤵
                          PID:680
                        • C:\Users\Admin\AppData\Local\Temp\Js8vt.exe
                          "C:\Users\Admin\AppData\Local\Temp\Js8vt.exe"
                          1⤵
                          • Checks BIOS information in registry
                          PID:4748

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              settings.dat

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                              • Size 280B
                              • SHA256 3c6dca8bebb3d00588d707c2c50902e7396ed06df3aa5d4b4cba75d8a7858968
                              • MD5 SHA1 SHA512 TLSH

                              settings.dat

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                              • Size 280B
                              • SHA256 58b461967016818ce2213ba739aa830e079c4747cc98baea5feaffc8b09c915d
                              • MD5 SHA1 SHA512 TLSH

                              the-real-index

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                              • Size 3KB
                              • SHA256 f573d1c768b64251d3484d4a6a9d38ff28f4bf11065585e0a5640944190e30c5
                              • MD5 SHA1 SHA512 TLSH

                              the-real-index~RFe5992e0.TMP

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index~RFe5992e0.TMP
                              • Size 3KB
                              • SHA256 e9ca9cea5d619b06275d9cdb75297fbe511173e76ce702ab629fa9345bf5b2af
                              • 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

                              Network Persistent State

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
                              • Size 1024B
                              • SHA256 90c65b49960699ca91344d316bc8d53ac4a2a21cd289f0ae342d714590a04df0
                              • MD5 SHA1 SHA512 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

                              Preferences

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                              • Size 9KB
                              • SHA256 742048b71fb5bd42f977a28bb7f392016b65697891dd3160fc46bb4c3b3924f1
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Secure Preferences

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                              • Size 27KB
                              • SHA256 bd6128d6676e7150c01da13af0f08aa7de55209562b3def274a4e067a3dd9c07
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Local State

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                              • Size 8KB
                              • SHA256 265b5e36190e7a55983c3022278d7b65fb7f322b075207bafa9b067ae4a68451
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Local State

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                              • Size 8KB
                              • SHA256 7edd24aa8568b2e9e69e88c0240902ca7bcd08de14f17b54f4af8753ae608d74
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Local State

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                              • Size 16KB
                              • SHA256 9a813cfb13f762a6da274dd32f79469e8b9c24a7a3162b4fd1f6760b2b7bcd34
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              data_1

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\ShaderCache\data_1
                              • Size 264KB
                              • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                              • MD5 SHA1 SHA512 SSDEEP

                              f2eff99a-91ec-4252-9941-0018823424e6.tmp

                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\extensions_crx_cache\f2eff99a-91ec-4252-9941-0018823424e6.tmp
                              • Size 13B
                              • SHA256 2771d13c637c267132afff9db67537bef95708534b79ae8d954254c4e64e4e0f
                              • MD5 SHA1 SHA512

                              dts_early.log

                              • Path C:\Users\Admin\AppData\Local\Temp\dts_early.log
                              • Size 500B
                              • SHA256 cfed152e14208d5c973c6bac071cdb6f29703af096f661ddb0d2cb3de436e602
                              • MD5 SHA1 SHA512 TLSH