Overview

overview

10

Static

static

10

update1.exe

windows10-2004-x64

10

update1.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/07/2026, 12:25

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General

  • Target
    update1.exe
  • Size 2.6MB
  • Sample260722-pl343a1why
  • SHA256 748a02784c8a04459884778a66b2dbb5156b01b324c7b73f06c8058596d1a030
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
credential_accessdiscoverymilleniumratratspywarestealer

Malware Config

Signatures

  • Family: MilleniumRat

    MilleniumRat is a remote access trojan written in C#.

    ratstealermilleniumrat
  • Detects MilleniumRAT stealer 1 IoCs
  • Uses browser remote debugging 2 TTPs 1 IoCs

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

    credential_accessstealer
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • System Time Discovery 1 TTPs 1 IoCs

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

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update1.exe
    "C:\Users\Admin\AppData\Local\Temp\update1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Users\Admin\AppData\Roaming\jan8zT\svchost.exe
      "C:\Users\Admin\AppData\Roaming\jan8zT\svchost.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4544
      • 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
        • Enumerates system info in registry
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:964
        • 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,0x230,0x25c,0x7ffc5cedc188,0x7ffc5cedc194,0x7ffc5cedc1a0
          4⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:3184
        • 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" --force-high-res-timeticks=disabled --always-read-main-dll --field-trial-handle=2148,i,13779325181180123917,4543014738222507620,262144 --disable-features=PaintHolding --variations-seed-version --mojo-platform-channel-handle=2144 /prefetch:3
          4⤵
          • System Time Discovery
          PID:996
  • C:\Users\Admin\AppData\Roaming\jan8zT\svchost.exe
    C:\Users\Admin\AppData\Roaming\jan8zT\svchost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:1744
  • 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:1212

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          metadata
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\metadata
          • Size 114B
          • SHA256 9fa0e43976accdabd4d3678d0e9d4fc8cbabfb477748bb9bf1d8bae7b66bfeb5
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          1df9d762-603c-44d1-8ab2-83554474d753.dmp
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\reports\1df9d762-603c-44d1-8ab2-83554474d753.dmp
          • Size 6.0MB
          • SHA256 b93e710d597dd190fd270b98d8ae328a45d16b4e951431906c1dc055df8f2ed4
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          b19f04f0-e7f0-4dbe-99a6-bb1bb2bef37a.dmp
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\reports\b19f04f0-e7f0-4dbe-99a6-bb1bb2bef37a.dmp
          • Size 7.3MB
          • SHA256 631b18e10897f16640ea355e824bcd8059a8f01812fdfefcf49f2e47dc7a2d9c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          settings.dat
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
          • Size 280B
          • SHA256 7d64d2777f444a09968d6c155732e22d743fcf7c319c222bc06f6bb97808e489
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          settings.dat
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
          • Size 280B
          • SHA256 92b83a0e542b7bb3ed324c35b5f2a40c47a6351981065b804e4d9d80ddd6d7ee
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          settings.dat
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
          • Size 280B
          • SHA256 bff4f944fbf6ac893b6330ced3e042838d7de7d84bd0827846bc3d2b671d63ee
          • MD5 SHA1 SHA512 TLSH
          Submit Download

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

          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
          Submit Download

          Network Persistent State
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
          • Size 327B
          • SHA256 ca62b0ff514228a84351d2007fb67d2a03f44b9403ca2522410b346cf06b1557
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          Network Persistent State
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
          • Size 111B
          • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          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
          Submit Download

          Web Data
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Web Data
          • Size 224KB
          • SHA256 8b36e43232843fb1ca0a21c3344b07b38856ebf257f21ab46a9d549b0c3ebb3d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Local State
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
          • Size 8KB
          • SHA256 1361649c6a058762320b8bfc42a4a62919f1cf29d46523de1935b9c097a4a059
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Local State
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
          • Size 9KB
          • SHA256 8038bcfe46f2edbb9f27c23cff9dea35594a034ef538ff11b12ee1a47626ef11
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          5132dad2-28e6-4120-9c0f-ac0483af1574.tmp
          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\extensions_crx_cache\5132dad2-28e6-4120-9c0f-ac0483af1574.tmp
          • Size 13B
          • SHA256 2771d13c637c267132afff9db67537bef95708534b79ae8d954254c4e64e4e0f
          • MD5 SHA1 SHA512
          Submit Download

          svchost.exe
          • Path C:\Users\Admin\AppData\Roaming\jan8zT\svchost.exe
          • Size 2.6MB
          • SHA256 748a02784c8a04459884778a66b2dbb5156b01b324c7b73f06c8058596d1a030
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download