Analysis

  • user interaction
    yes
  • max time kernel
    8s
  • max time network
    23s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    03/07/2026, 03:11

General

  • Target
    https://github.com/Fr33dan/GPSaveConverter/releases/tag/v.0.4.10
  • Sample260703-dpvfjsay4y

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • 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.

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

    Enumerate browser information.

  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --disable-default-apps --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://github.com/Fr33dan/GPSaveConverter/releases/tag/v.0.4.10
    1⤵
    • Drops file in Windows directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2240
    • 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=0x260,0x264,0x268,0x25c,0x288,0x7ffcb5abc188,0x7ffcb5abc194,0x7ffcb5abc1a0
      2⤵
        PID:2472
      • 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 --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=1828,i,11851305449856757742,4637745415294671550,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=2224 /prefetch:3
        2⤵
        • Downloads MZ/PE file
        • System Time Discovery
        PID:1480
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=1724,i,3873815936900497620,11104167083426594120,262144 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=2192 /prefetch:2
        2⤵
          PID:1264
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2588,i,15428121784997443597,5825088752864433597,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=2592 /prefetch:8
          2⤵
            PID:760
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --metrics-shmem-handle=3448,i,10304931556983140499,18214833128522566117,2097152 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=3460 /prefetch:1
            2⤵
              PID:4056
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --metrics-shmem-handle=3452,i,12743750940479994635,10829691030358897925,2097152 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=3524 /prefetch:1
              2⤵
                PID:5080
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --always-read-main-dll --metrics-shmem-handle=4216,i,10725852861792902037,7196271692602348401,2097152 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=4228 /prefetch:1
                2⤵
                  PID:4120
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --extension-process --renderer-sub-type=extension --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --always-read-main-dll --metrics-shmem-handle=4288,i,11798792222052575301,12718784763404403695,2097152 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:2
                  2⤵
                    PID:1680
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5260,i,10814285259319837356,14270229971063010682,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=3632 /prefetch:8
                    2⤵
                      PID:4508
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=3628,i,4254664795020969791,6818121523712782052,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=5284 /prefetch:8
                      2⤵
                        PID:1980
                      • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5824,i,9750988139778172547,17373021591055404628,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=5832 /prefetch:8
                        2⤵
                          PID:2780
                        • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5824,i,9750988139778172547,17373021591055404628,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=5832 /prefetch:8
                          2⤵
                            PID:672
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --lang=en-US --service-sandbox-type=collections --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=6236,i,11967896844261472359,18048932565516721933,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=6364 /prefetch:8
                            2⤵
                              PID:332
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --always-read-main-dll --metrics-shmem-handle=6372,i,15487583015639493398,7672438374412723802,2097152 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=6404 /prefetch:1
                              2⤵
                                PID:224
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=6844,i,10254003291483796383,11286212312911782555,524288 --field-trial-handle=2196,i,13900731380775951618,13789131644085929710,262144 --variations-seed-version --mojo-platform-channel-handle=6848 /prefetch:8
                                2⤵
                                  PID:2780
                                • C:\Users\Admin\Downloads\GPSaveConverter.exe
                                  "C:\Users\Admin\Downloads\GPSaveConverter.exe"
                                  2⤵
                                    PID:1356
                                • 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:4240

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        user.config

                                        • Path C:\Users\Admin\AppData\Local\GPSaveConverter\GPSaveConverter.exe_StrongName_2sdumfb5kcerkookbtjeawoikql1pb4u\0.4.0.0\user.config
                                        • Size 1KB
                                        • SHA256 bba9fdcb96765eacbd8db90979115588f5612ddac2ccf61fd9d94d93ef631da3
                                        • MD5 SHA1 SHA512 TLSH

                                        user.config

                                        • Path C:\Users\Admin\AppData\Local\GPSaveConverter\GPSaveConverter.exe_StrongName_2sdumfb5kcerkookbtjeawoikql1pb4u\0.4.0.0\user.config
                                        • Size 15KB
                                        • SHA256 cc1be640f1efec52fc19ead6ecd7454030fe4f60f09f6125a2f6eeb1c39dfffe
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        settings.dat

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                        • Size 280B
                                        • SHA256 f581ea565cf0ece39a0cfdc05cae1573d34e8544d3d072c3f0598034de5e42f8
                                        • MD5 SHA1 SHA512 TLSH

                                        settings.dat

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                        • Size 280B
                                        • SHA256 e091ac4f88db5453fb07661c5eb4ebedb553cc507ac11d855633af4bab0e74e5
                                        • MD5 SHA1 SHA512 TLSH

                                        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

                                        HubApps

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\HubApps
                                        • Size 106KB
                                        • SHA256 eb2fd7422436fff93f6be09df3294b26cdb7afd18e6aa94dcdc0f208db78b2ed
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        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

                                        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

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                        • Size 13KB
                                        • SHA256 b545f6a1639e1cd474365059316c4ec3291721ccfdbbe8173739a9d018a5ac38
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Secure Preferences

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                        • Size 30KB
                                        • SHA256 c9f44d8c95bc19cb36c00e0373adb6e7bd799f31e1c89945e6f5e7862f0da0a0
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        sync_diagnostic.log

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\Logs\sync_diagnostic.log
                                        • Size 4KB
                                        • SHA256 fa81753a0091e1107554c498a56864652635e5e0adf4470207fc4a19f28b7d4b
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        favorites_diagnostic.log

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\favorites_diagnostic.log
                                        • Size 1KB
                                        • SHA256 599fb210de76f820185cb400c752759849dae5709bef7a028fa275afb285b493
                                        • MD5 SHA1 SHA512 TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                        • Size 8KB
                                        • SHA256 62dc8fcba8dec7746eeed7002f216e31fd3bff3ab9e9ef9258d0e2be8d77dc1a
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                        • Size 19KB
                                        • SHA256 2c52644aa53852b632e8d4d5b8e3ec2a554ba0dde413f4f8923ac4e15fcb335b
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                        • Size 19KB
                                        • SHA256 a7f003183d78cb3669b6233826e06d810852dddbdc0779e82e271b198514ab10
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                        • Size 8KB
                                        • SHA256 9ae27773bfb7f3984d539ab6583f7c5941c44dc5bda7c7c4bea68c10810fd268
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres
                                        • Size 2KB
                                        • SHA256 3f68cda2df827ff182eb200876ed19dc73ae7e6b8b3e2e3b4c49603319824fd5
                                        • MD5 SHA1 SHA512 TLSH

                                        __PSScriptPolicyTest_adfqyq40.vhr.ps1

                                        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_adfqyq40.vhr.ps1
                                        • Size 60B
                                        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                        • MD5 SHA1 SHA512 TLSH

                                        GPSaveConverter.exe.crdownload

                                        • Path C:\Users\Admin\Downloads\GPSaveConverter.exe.crdownload
                                        • Size 1.7MB
                                        • SHA256 81928049c9db83060ce0251927b503d5d72ac4bd7e4bc0b9b4818395f621bd77
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        memory/1356-377-0x000000000A6E0000-0x000000000A6E8000-memory.dmp

                                        memory/1356-414-0x000000000B430000-0x000000000B466000-memory.dmp

                                        memory/1356-362-0x0000000009340000-0x0000000009360000-memory.dmp

                                        memory/1356-367-0x0000000009420000-0x000000000942A000-memory.dmp

                                        memory/1356-366-0x000000000A5F0000-0x000000000A6A4000-memory.dmp

                                        memory/1356-378-0x000000000AFB0000-0x000000000AFC8000-memory.dmp

                                        memory/1356-360-0x0000000009020000-0x0000000009110000-memory.dmp

                                        memory/1356-376-0x000000000AF80000-0x000000000AFA6000-memory.dmp

                                        memory/1356-379-0x000000000A8A0000-0x000000000A8AA000-memory.dmp

                                        memory/1356-380-0x000000000AFD0000-0x000000000AFD8000-memory.dmp

                                        memory/1356-381-0x000000000AFF0000-0x000000000AFFA000-memory.dmp

                                        memory/1356-382-0x000000000B0A0000-0x000000000B0BE000-memory.dmp

                                        memory/1356-354-0x0000000005490000-0x000000000549A000-memory.dmp

                                        memory/1356-351-0x00000000054F0000-0x0000000005582000-memory.dmp

                                        memory/1356-405-0x000000000B8A0000-0x000000000BF6A000-memory.dmp

                                        memory/1356-350-0x0000000005A00000-0x0000000005FA6000-memory.dmp

                                        memory/1356-413-0x000000000B3D0000-0x000000000B3EA000-memory.dmp

                                        memory/1356-361-0x0000000009130000-0x0000000009150000-memory.dmp

                                        memory/1356-415-0x000000000C5F0000-0x000000000CC6A000-memory.dmp

                                        memory/1356-416-0x000000000B510000-0x000000000B5A6000-memory.dmp

                                        memory/1356-417-0x000000000B470000-0x000000000B492000-memory.dmp

                                        memory/1356-418-0x000000000B5B0000-0x000000000B616000-memory.dmp

                                        memory/1356-419-0x000000000B410000-0x000000000B42E000-memory.dmp

                                        memory/1356-420-0x000000000B620000-0x000000000B66A000-memory.dmp

                                        memory/1356-421-0x000000000BF70000-0x000000000C2C7000-memory.dmp

                                        memory/1356-422-0x000000000C4D0000-0x000000000C536000-memory.dmp

                                        memory/1356-423-0x000000000C540000-0x000000000C562000-memory.dmp

                                        memory/1356-424-0x000000000CD60000-0x000000000CDAC000-memory.dmp

                                        memory/1356-329-0x00000000008D0000-0x0000000000A7E000-memory.dmp

                                        memory/1356-440-0x000000000DDD0000-0x000000000DDEE000-memory.dmp

                                        memory/1356-441-0x000000000DDF0000-0x000000000DE93000-memory.dmp

                                        memory/1356-442-0x000000000E0A0000-0x000000000E0B6000-memory.dmp

                                        memory/1356-443-0x000000000DDD0000-0x000000000DDDA000-memory.dmp

                                        memory/1356-444-0x000000000DE50000-0x000000000DE76000-memory.dmp