Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    20/04/2026, 04:23

General

  • Target
    400000.installutil.exe
  • Size 733KB
  • Sample260420-ezzzfscx9y
  • SHA256 3a599aafc3bfd5306d8f906c0562e5ee6c741c49e96fe15153c7c8fe36e6afa7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • phantom_stealer

Version
  • v3.5.0

C2
  • https://api.telegram.org/bot8252313259:AAEXmC-l8hDJvlsWsdLnHThfXg5AlplVE70/sendMessage?chat_id=1258525953

Mutex
  • TISP76ZWP719X8DU65TS

Attributes
  • anti_analysis

    0

  • cb_enables_ssl

    0

  • debug

    0

  • keylogger

    0

  • start_delay

    0

  • startup

    0

Signatures

  • Family: PhantomStealer

    Phantom Stealer is a stealer written in C#, forked from the Stealerium family.

  • Detects PhantomStealer written in C# 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • 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
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\400000.installutil.exe
    "C:\Users\Admin\AppData\Local\Temp\400000.installutil.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1792
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --no-sandbox --allow-no-sandbox-job --disable-gpu --mute-audio --disable-audio --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l"
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4828
      • 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\Temp\vke2mhkn.a1l /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Crashpad --metrics-dir=C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x104,0x108,0x10c,0xe0,0x110,0x7ff917edc728,0x7ff917edc734,0x7ff917edc740
        3⤵
          PID:3892
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --use-gl=angle --use-angle=swiftshader-webgl --metrics-shmem-handle=1612,i,10103860176714865341,1017797643697088239,262144 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=1900 /prefetch:2
          3⤵
            PID:1644
          • 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 --no-sandbox --mute-audio --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --force-high-res-timeticks=disabled --metrics-shmem-handle=1940,i,8386985271595201187,14969401709620230027,524288 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=2096 /prefetch:11
            3⤵
            • System Time Discovery
            PID:5100
          • 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 --no-sandbox --mute-audio --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --force-high-res-timeticks=disabled --metrics-shmem-handle=2132,i,4910260337820161959,10322217279259997432,524288 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=2144 /prefetch:13
            3⤵
              PID:2588
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-sandbox --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=6 --metrics-shmem-handle=2776,i,2550341870987994483,4751988454215654941,2097152 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=2880 /prefetch:1
              3⤵
                PID:1592
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-sandbox --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=5 --metrics-shmem-handle=2796,i,8376824028159781117,6584761136780322371,2097152 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=3048 /prefetch:1
                3⤵
                  PID:1692
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-sandbox --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=3112,i,7796411582218971834,17195264590809208745,2097152 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=3564 /prefetch:1
                  3⤵
                    PID:3776
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-sandbox --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=8 --metrics-shmem-handle=3140,i,15169171629556398482,8073136686428332304,2097152 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=3680 /prefetch:9
                    3⤵
                      PID:2616
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l" --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --no-sandbox --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=9 --metrics-shmem-handle=2864,i,7761515201096070110,17486540290241112583,2097152 --field-trial-handle=1904,i,5386048066724810808,13581047833342023613,262144 --variations-seed-version --mojo-platform-channel-handle=2892 /prefetch:9
                      3⤵
                        PID:3856
                  • 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:2628

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Crashpad\settings.dat
                          • Size 40B
                          • SHA256 1e9238d5677d3db5b0695bc54f4457f818002952ef8d73a2d715c5c6beb0caa7
                          • MD5 SHA1 SHA512

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Cache\Cache_Data\index
                          • Size 256KB
                          • SHA256 f97c7af595c1c30ee24e9a5f1bce475904972888103aa9cf68754226fefda921
                          • MD5 SHA1 SHA512 SSDEEP

                          ba678a2fbd8c358c_0

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Code Cache\js\ba678a2fbd8c358c_0
                          • Size 298B
                          • SHA256 d7f791b60a784b5959859fd4c2b4859dbaa83c3cba429d86cb8bc76b791366e6
                          • MD5 SHA1 SHA512 TLSH

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Code Cache\wasm\index-dir\the-real-index
                          • Size 48B
                          • SHA256 2dc918437133adc10b0aa132cdf044b98d1704905d57a5cf32e7f6838d142d6e
                          • MD5 SHA1 SHA512

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\DawnGraphiteCache\index
                          • Size 256KB
                          • SHA256 b24c6010e5cc220bcfaa5687260faaf298049130c1274efc73fc8c518335d930
                          • MD5 SHA1 SHA512 SSDEEP

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\DawnWebGPUCache\index
                          • Size 256KB
                          • SHA256 e2c38de030ecc19821295ff01d91891b57aa0cadafb5cde10e3a028315e35032
                          • MD5 SHA1 SHA512 SSDEEP

                          MANIFEST-000001

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Extension Rules\MANIFEST-000001
                          • Size 41B
                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                          • MD5 SHA1 SHA512

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\GPUCache\index
                          • Size 256KB
                          • SHA256 69983191395239655032893fcff56a628e8f31a8ff3ea1236689e4bfa98b30ec
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Preferences
                          • Size 3KB
                          • SHA256 15954fd91b5261c07a31aae9dea90739517ab305d71c02d01cd136ad21daff6f
                          • MD5 SHA1 SHA512 TLSH

                          2cc80dabc69f58b6_0

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Service Worker\ScriptCache\2cc80dabc69f58b6_0
                          • Size 472B
                          • SHA256 7433e2de592bac3d53e34206cd580d140d107eae0defa146b238d209d3b34c87
                          • MD5 SHA1 SHA512 TLSH

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Shared Dictionary\cache\index
                          • Size 24B
                          • SHA256 fbcfe23a2ecb82b7100c50811691dde0a33aa3da8d176be9882a9db485dc0f2d
                          • MD5 SHA1 SHA512

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Shared Dictionary\cache\index-dir\the-real-index
                          • Size 48B
                          • SHA256 df56c792e8a4f4454f2866f5aa6d8b4fa7b22d55175c09fcea798bf72c7ca380
                          • MD5 SHA1 SHA512

                          CURRENT

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Default\Sync Data\LevelDB\CURRENT
                          • Size 16B
                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                          • MD5 SHA1 SHA512

                          data_0

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GrShaderCache\data_0
                          • Size 8KB
                          • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                          • MD5 SHA1 SHA512 SSDEEP

                          data_1

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GrShaderCache\data_1
                          • Size 264KB
                          • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                          • MD5 SHA1 SHA512 SSDEEP

                          data_2

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GrShaderCache\data_2
                          • Size 8KB
                          • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                          • MD5 SHA1 SHA512 SSDEEP

                          data_3

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GrShaderCache\data_3
                          • Size 8KB
                          • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                          • MD5 SHA1 SHA512 SSDEEP

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GrShaderCache\index
                          • Size 256KB
                          • SHA256 0a5812440751d97df85c1ea4c8a20db817fca7e71f24a98958b07c18b93900b2
                          • MD5 SHA1 SHA512 SSDEEP

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\GraphiteDawnCache\index
                          • Size 256KB
                          • SHA256 b33b0c4f5cf33dd957594b6a9cec0d88226d424024b2875cf91d6f0072602f3a
                          • MD5 SHA1 SHA512 SSDEEP

                          Last Version

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Last Version
                          • Size 13B
                          • SHA256 e5efa9eb104cd0b25149c2e789bec8d9aa4ba95678831b657eef7780a281c391
                          • MD5 SHA1 SHA512

                          Local State

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Local State
                          • Size 1KB
                          • SHA256 a678d5fff6f996e7cd6636b756fc01a5346bcb39c9f49067e935e98405918b87
                          • MD5 SHA1 SHA512 TLSH

                          index

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\ShaderCache\index
                          • Size 256KB
                          • SHA256 6285c5d36b28919cf0bedcbb06cb8f215e91fe92b7e29f83fa36ee33961112ba
                          • MD5 SHA1 SHA512 SSDEEP

                          Variations

                          • Path C:\Users\Admin\AppData\Local\Temp\vke2mhkn.a1l\Variations
                          • Size 86B
                          • SHA256 f7b24f2eb3d5eb0550527490395d2f61c3d2fe74bb9cb345197dad81b58b5fed
                          • MD5 SHA1 SHA512 TLSH

                          memory/1792-177-0x000001FBB0420000-0x000001FBB0432000-memory.dmp

                          memory/1792-2-0x000001FBB0340000-0x000001FBB03F2000-memory.dmp

                          memory/1792-7-0x000001FBB03F0000-0x000001FBB040E000-memory.dmp

                          memory/1792-6-0x000001FBB0CC0000-0x000001FBB11E8000-memory.dmp

                          memory/1792-5-0x000001FBB04F0000-0x000001FBB0540000-memory.dmp

                          memory/1792-4-0x000001FBB0470000-0x000001FBB04E6000-memory.dmp

                          memory/1792-3-0x000001FBB05C0000-0x000001FBB0782000-memory.dmp

                          memory/1792-191-0x000001FBB0540000-0x000001FBB05AF000-memory.dmp

                          memory/1792-1-0x000001FB96150000-0x000001FB96160000-memory.dmp

                          memory/1792-171-0x000001FBB0440000-0x000001FBB0462000-memory.dmp

                          memory/1792-178-0x000001FB96150000-0x000001FB96160000-memory.dmp

                          memory/1792-0-0x000001FB95C60000-0x000001FB95D1E000-memory.dmp

                          memory/1792-176-0x000001FBB0540000-0x000001FBB05AF000-memory.dmp

                          memory/1792-181-0x000001FBB0540000-0x000001FBB05AF000-memory.dmp

                          memory/1792-185-0x000001FBB0540000-0x000001FBB05AF000-memory.dmp

                          memory/3892-32-0x0000024CF77F0000-0x0000024CF78AE000-memory.dmp