Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 23:11

General

  • Target
    file.exe
  • Size 733KB
  • Sample260916-26cttstyft
  • SHA256 3feb5b6941b766f05d36adc9e2de9a3f631e9722d4bf083c2de4c0d5ff5208e2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • phantom_stealer

Version
  • v3.5.0

Credentials
Mutex
  • Q48K5S2K6OEJTRJEK22R

Attributes
  • anti_analysis

    0

  • cb_enables_ssl

    1

  • debug

    0

  • keylogger

    1

  • 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 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4960
    • 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\bcjzgnb5.g2e"
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2608
      • 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\bcjzgnb5.g2e /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Crashpad --metrics-dir=C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x12c,0x130,0x134,0x108,0x138,0x7ffdc8f2c728,0x7ffdc8f2c734,0x7ffdc8f2c740
        3⤵
          PID:4968
        • 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\bcjzgnb5.g2e" --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --use-gl=angle --use-angle=swiftshader-webgl --metrics-shmem-handle=1648,i,2347940373783377252,1717051771822971112,262144 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=1880 /prefetch:2
          3⤵
            PID:2452
          • 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\bcjzgnb5.g2e" --force-high-res-timeticks=disabled --metrics-shmem-handle=1956,i,506048488347289637,10416669035725636110,524288 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=1992 /prefetch:11
            3⤵
            • System Time Discovery
            PID:6120
          • 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\bcjzgnb5.g2e" --force-high-res-timeticks=disabled --metrics-shmem-handle=2108,i,4856391875650759983,8679675466894844199,524288 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=2652 /prefetch:13
            3⤵
              PID:1544
            • 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\bcjzgnb5.g2e" --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=2900,i,7887271791164217770,11108696716099659762,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=2904 /prefetch:1
              3⤵
                PID:624
              • 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\bcjzgnb5.g2e" --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=2936,i,11713466311195964060,13908469863530023473,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=2912 /prefetch:1
                3⤵
                  PID:5344
                • 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\bcjzgnb5.g2e" --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=3084,i,14979428915274608494,2552641343607568185,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=3128 /prefetch:1
                  3⤵
                    PID:3084
                  • 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\bcjzgnb5.g2e" --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=3144,i,2232172826064080275,7599814938396184180,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=3288 /prefetch:9
                    3⤵
                      PID:5704
                    • 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\bcjzgnb5.g2e" --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=3680,i,195026362338402264,1615551040508033289,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=3716 /prefetch:9
                      3⤵
                        PID:3452
                      • 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\bcjzgnb5.g2e" --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=10 --metrics-shmem-handle=4240,i,17429858014644388269,14251655041863699047,2097152 --field-trial-handle=1892,i,10081594649885916921,1157821451629085378,262144 --variations-seed-version --mojo-platform-channel-handle=4268 /prefetch:1
                        3⤵
                          PID:2224
                    • 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:3360

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            settings.dat

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Crashpad\settings.dat
                            • Size 40B
                            • SHA256 3a62a606057e9abab66806c780bce913e782becaa4e57b3e5402c78ebeb87b6c
                            • MD5 SHA1 SHA512

                            data_0

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Cache\Cache_Data\data_0
                            • Size 44KB
                            • SHA256 9c3d8872c33ca7c5a6ee519baa7ded51e3955a5e49cb81a5ed189dfa4b69c236
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            data_1

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Cache\Cache_Data\data_1
                            • Size 264KB
                            • SHA256 cf0e5e0187ce68cd4a81b967004190c3333b69ab859fb9ccf8ed5b378fa1c820
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Cache\Cache_Data\index
                            • Size 256KB
                            • SHA256 2fc02dad465a533beabfe072b5a28f9a6196ce77f87b10ea295097cde95023fe
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            ba678a2fbd8c358c_0

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Code Cache\js\ba678a2fbd8c358c_0
                            • Size 298B
                            • SHA256 016bd08e81ff8fd2e7dc7be8a07afffe1a7a3ea667d2f58b65af57558d3b81fd
                            • MD5 SHA1 SHA512 TLSH

                            the-real-index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Code Cache\js\index-dir\the-real-index
                            • Size 48B
                            • SHA256 413005a94ae2740a442db4d6b4b48d7b49c33cabc688e7a3fd44fc66f4c67c5a
                            • MD5 SHA1 SHA512

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\DawnGraphiteCache\index
                            • Size 256KB
                            • SHA256 dfcae1ff78cc6c759b5831570387248dbadf0d99ba189cb14b425f8e100aa1ab
                            • MD5 SHA1 SHA512 SSDEEP

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\DawnWebGPUCache\index
                            • Size 256KB
                            • SHA256 31614267d03c4034e050bf9620eddd772cf4726f781e67c6eaedda9bc079ded8
                            • MD5 SHA1 SHA512 SSDEEP

                            MANIFEST-000001

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Extension Rules\MANIFEST-000001
                            • Size 41B
                            • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                            • MD5 SHA1 SHA512

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\GPUCache\index
                            • Size 256KB
                            • SHA256 45276e2b9a1742540c98d4f8693dcc7ce7cf007c6189ffdbbf718a2288ac7bd6
                            • MD5 SHA1 SHA512 SSDEEP

                            Preferences

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Preferences
                            • Size 3KB
                            • SHA256 ffeffb044e3602a3175fd8c8acee236953f852c5f5cd0055dc076f8bd2c4c97f
                            • MD5 SHA1 SHA512 TLSH

                            2cc80dabc69f58b6_0

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Service Worker\ScriptCache\2cc80dabc69f58b6_0
                            • Size 472B
                            • SHA256 7433e2de592bac3d53e34206cd580d140d107eae0defa146b238d209d3b34c87
                            • MD5 SHA1 SHA512 TLSH

                            the-real-index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Service Worker\ScriptCache\index-dir\the-real-index
                            • Size 72B
                            • SHA256 da1104a32afcf96634e3d2a220ca71138a980c166ea39a01be4edc63bbfa8aa6
                            • MD5 SHA1 SHA512 TLSH

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Shared Dictionary\cache\index
                            • Size 24B
                            • SHA256 fbcfe23a2ecb82b7100c50811691dde0a33aa3da8d176be9882a9db485dc0f2d
                            • MD5 SHA1 SHA512

                            the-real-index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Shared Dictionary\cache\index-dir\the-real-index
                            • Size 48B
                            • SHA256 88b8fda01704bfb6db9a96035f45ee5f496a5872aa9b9037920ac4e420bd470f
                            • MD5 SHA1 SHA512

                            CURRENT

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Default\Site Characteristics Database\CURRENT
                            • Size 16B
                            • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                            • MD5 SHA1 SHA512

                            data_0

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GrShaderCache\data_0
                            • Size 8KB
                            • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                            • MD5 SHA1 SHA512 SSDEEP

                            data_1

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GrShaderCache\data_1
                            • Size 264KB
                            • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                            • MD5 SHA1 SHA512 SSDEEP

                            data_2

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GrShaderCache\data_2
                            • Size 8KB
                            • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                            • MD5 SHA1 SHA512 SSDEEP

                            data_3

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GrShaderCache\data_3
                            • Size 8KB
                            • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                            • MD5 SHA1 SHA512 SSDEEP

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GrShaderCache\index
                            • Size 256KB
                            • SHA256 ae9b7fd32fb8b5cb45f0e96d7aaadd97819a7ecc00281093a082dd4dccc54d0f
                            • MD5 SHA1 SHA512 SSDEEP

                            index

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\GraphiteDawnCache\index
                            • Size 256KB
                            • SHA256 f646599468cfe700b24ef758db1f0c25d7ba91ec3a5a1f145581f75b6c673fa0
                            • MD5 SHA1 SHA512 SSDEEP

                            Last Version

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Last Version
                            • Size 13B
                            • SHA256 e5efa9eb104cd0b25149c2e789bec8d9aa4ba95678831b657eef7780a281c391
                            • MD5 SHA1 SHA512

                            Local State

                            • Path C:\Users\Admin\AppData\Local\Temp\bcjzgnb5.g2e\Local State
                            • Size 1KB
                            • SHA256 96955026d610a9844baeddc80cf55474b10837e0ae7056498c6b264c75bffe28
                            • MD5 SHA1 SHA512 TLSH

                            memory/4960-10-0x000001F3B8B40000-0x000001F3B8BB6000-memory.dmp

                            memory/4960-7-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-196-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-13-0x000001F39E800000-0x000001F39E81E000-memory.dmp

                            memory/4960-12-0x000001F3B9410000-0x000001F3B9938000-memory.dmp

                            memory/4960-11-0x000001F3A0040000-0x000001F3A0090000-memory.dmp

                            memory/4960-0-0x000001F39E200000-0x000001F39E2BE000-memory.dmp

                            memory/4960-9-0x000001F3B8D10000-0x000001F3B8ED2000-memory.dmp

                            memory/4960-8-0x000001F3B8A90000-0x000001F3B8B42000-memory.dmp

                            memory/4960-191-0x000001F3B89F0000-0x000001F3B8A12000-memory.dmp

                            memory/4960-6-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-5-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-4-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-3-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-2-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4960-1-0x00007FFDC7A2F000-0x00007FFDC7A30000-memory.dmp

                            memory/4960-195-0x00007FFDC78A0000-0x00007FFDC8244000-memory.dmp

                            memory/4968-109-0x0000019AC9150000-0x0000019AC920E000-memory.dmp