Analysis

  • user interaction
    yes
  • max time kernel
    33s
  • max time network
    37s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    17/08/2026, 14:05

General

  • Target
    https://papi.gameinstaller.ru/api/v2/download?channel=GiPartner&flow=landing&pid=6&fid=93&srcd=gameinstaller.ru&url=&game=GameInstaller
  • Sample260817-rd2blssapd

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 18 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SetWindowsHookEx 21 IoCs
  • Suspicious use of WriteProcessMemory 38 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.

Processes

  • C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "https://papi.gameinstaller.ru/api/v2/download?channel=GiPartner&flow=landing&pid=6&fid=93&srcd=gameinstaller.ru&url=&game=GameInstaller"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4128
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://papi.gameinstaller.ru/api/v2/download?channel=GiPartner&flow=landing&pid=6&fid=93&srcd=gameinstaller.ru&url=&game=GameInstaller
      2⤵
      • Downloads MZ/PE file
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • Checks processor information in registry
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2624
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2000 -prefsLen 27100 -prefMapHandle 2004 -prefMapSize 270279 -ipcHandle 2072 -initialChannelId {c9826847-9773-4f24-bab4-d2bc50abb626} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:580
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2484 -prefsLen 27136 -prefMapHandle 2488 -prefMapSize 270279 -ipcHandle 2496 -initialChannelId {64041476-8ac9-45b5-a027-31f476003209} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:3600
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3872 -prefsLen 25164 -prefMapHandle 3876 -prefMapSize 270279 -jsInitHandle 3880 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3888 -initialChannelId {50f54f7a-42c0-41fe-ad9a-7a81efe8c8c9} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:1916
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4060 -prefsLen 27277 -prefMapHandle 4064 -prefMapSize 270279 -ipcHandle 4112 -initialChannelId {09daeba0-17c1-4413-834f-88368beae6b8} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:4560
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2888 -prefsLen 34776 -prefMapHandle 2956 -prefMapSize 270279 -jsInitHandle 2932 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 2936 -initialChannelId {d577a72a-5fa6-4b15-a9f6-21662d542d71} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:2096
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5060 -prefsLen 35013 -prefMapHandle 5064 -prefMapSize 270279 -ipcHandle 3196 -initialChannelId {51e07117-c8df-4451-b4db-f027aea62571} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:2604
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5232 -prefsLen 32952 -prefMapHandle 5236 -prefMapSize 270279 -jsInitHandle 5240 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5248 -initialChannelId {1a149c87-a8d4-4b8d-b078-90c1dc468489} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:2348
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5352 -prefsLen 32952 -prefMapHandle 5356 -prefMapSize 270279 -jsInitHandle 5360 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5336 -initialChannelId {72dee8f1-ee9f-47d3-83a2-1ee5a6872f61} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:1384
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5676 -prefsLen 32952 -prefMapHandle 5680 -prefMapSize 270279 -jsInitHandle 5684 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5696 -initialChannelId {019bdf03-a0fb-43c6-869e-c58d16dfe79f} -parentPid 2624 -crashReporter "\\.\pipe\gecko-crash-server-pipe.2624" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:3764
            • C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.exe
              "C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.exe"
              3⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1176
              • C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.exe
                "C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.exe" -install posX=910 posY=138 C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.exe
                4⤵
                • Executes dropped EXE
                • Enumerates connected drives
                • Suspicious behavior: AddClipboardFormatListener
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of SetWindowsHookEx
                PID:3964

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              86DDBDE5E1EAFC4C588EE71FB531985C95CCC542

              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\33iyexir.default-release\cache2\entries\86DDBDE5E1EAFC4C588EE71FB531985C95CCC542
              • Size 16KB
              • SHA256 02582d814c549612653f0d858789a9f940d2aecb9b248d98c237eab9bd21bcbd
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tmpaddon

              • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
              • Size 11KB
              • SHA256 ddf3ba4e25a622276755133e0cce5605b83719c7cab3546e09acbfed00d6a986
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tmpaddon-1

              • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
              • Size 502KB
              • SHA256 87862f4bc8559fbe578389a9501dc01c4c585edb4bb03b238493327296d60171
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\db\data.safe.tmp
              • Size 5KB
              • SHA256 91edaa92c3188d69578feeba5cca2bf00363892dc657b644aeac5913f0acad29
              • MD5 SHA1 SHA512 SSDEEP TLSH

              data.safe.tmp

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\db\data.safe.tmp
              • Size 6KB
              • SHA256 b0ed9e79448d41c00cdacc9715a476d5ce90ee8a34f3a488ca31802c2e7d636e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              events

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\events\events
              • Size 1KB
              • SHA256 2d81fcdc2806de8e3264868f67ff59c6a1152522581bfeb1064c39a235add82e
              • MD5 SHA1 SHA512 TLSH

              03376391-0e7e-4e91-b39d-e06a66342193

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\03376391-0e7e-4e91-b39d-e06a66342193
              • Size 883B
              • SHA256 69ab4bd1d97165626e9d716d7967765adba4780039cae7055ca7a5fac9f6400c
              • MD5 SHA1 SHA512 TLSH

              285b1cb7-503c-402f-abad-350e1e22e374

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\285b1cb7-503c-402f-abad-350e1e22e374
              • Size 16KB
              • SHA256 3469d971e780ecab0be3175c24f159ca5e294ab25fb0187b3d897b2922982961
              • MD5 SHA1 SHA512 SSDEEP TLSH

              6a173363-1c4e-4576-a191-da89b75e5563

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\6a173363-1c4e-4576-a191-da89b75e5563
              • Size 2KB
              • SHA256 989d63050437b1de02bda9d89065f02f2609bd9f508d9b13a47a4ba480145d76
              • MD5 SHA1 SHA512 TLSH

              d6f0974b-2f4c-4bdc-bb28-37f46bae8e9f

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\d6f0974b-2f4c-4bdc-bb28-37f46bae8e9f
              • Size 235B
              • SHA256 0dba01777f8a549397944349e71b8cbec278c2f5b10b76e1b3dc3e97a4c9a31a
              • MD5 SHA1 SHA512 TLSH

              d81990f2-9ef2-445c-af97-fd36e094051c

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\d81990f2-9ef2-445c-af97-fd36e094051c
              • Size 886B
              • SHA256 6ebdc0ff9607bc5b836f125e288b119b3188dd8804777334750aa8270eda622a
              • MD5 SHA1 SHA512 TLSH

              eaaffad1-8a47-440d-a28d-221c05abef7e

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\datareporting\glean\pending_pings\eaaffad1-8a47-440d-a28d-221c05abef7e
              • Size 235B
              • SHA256 3034b6184762fa8365063bd889ba0331a08aba5091d8d814f7e3ff2aec874f48
              • MD5 SHA1 SHA512 TLSH

              extensions.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\extensions.json
              • Size 16KB
              • SHA256 0ae1183d4726ffe0111803ec91affc56965b1c4530525aacb70146c226e21e5d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.dll
              • Size 1.1MB
              • SHA256 37c005a7789747b412d6c0a6a4c30d15732da3d857b4f94b744be1a67231b651
              • MD5 SHA1 SHA512 SSDEEP TLSH

              gmpopenh264.info

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.info
              • Size 116B
              • SHA256 fe7686a6281f0ab519c32c788ce0da0d01640425018dcffcfcb81105757f6fe6
              • MD5 SHA1 SHA512 TLSH

              manifest.json

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\gmp-widevinecdm\4.10.3050.0\manifest.json
              • Size 1002B
              • SHA256 2894996540fabbd346ed4ced8386ca77d6badf60372e307ee15c906c30340d0d
              • MD5 SHA1 SHA512 TLSH

              widevinecdm.dll

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\gmp-widevinecdm\4.10.3050.0\widevinecdm.dll
              • Size 7.7MB
              • SHA256 7f1db5a44a5bdc2e3079d42f1e833399643048cdf06f0ac242ce5dd6b842c95f
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs-1.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\prefs-1.js
              • Size 7KB
              • SHA256 f0162e2ab11324ecc30d8bc44b1938b0c1a46bfd6b1252f08464f0752dcfc21c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\prefs.js
              • Size 6KB
              • SHA256 75a6c87c6447579029884c31512e1cd227a3045d895acdee749b76b03af40d66
              • MD5 SHA1 SHA512 SSDEEP TLSH

              prefs.js

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\prefs.js
              • Size 6KB
              • SHA256 ac65b5f087d753c5947c18176e4c1ccb090327335460aec00260b538f939b28d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              recovery.baklz4

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\sessionstore-backups\recovery.baklz4
              • Size 1KB
              • SHA256 416b2c7424d7df24b7ca1f2e83610e0248055bc952aaf74972c44cb130edaf88
              • MD5 SHA1 SHA512 TLSH

              3870112724rsegmnoittet-es.sqlite

              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\33iyexir.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
              • Size 4.1MB
              • SHA256 53731733e308c7adbc8a41a3d646c2d65c661c776e0931edf20d7f075c39fd7b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              GameInstallerSetup-a2755237.vz-v_vgn.exe.part

              • Path C:\Users\Admin\Downloads\GameInstallerSetup-a2755237.vz-v_vgn.exe.part
              • Size 8.6MB
              • SHA256 cb870e6c4e91ceadf8401d96b460c4662d4a9a473ca46ba4eafea37d26d74755
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1176-368-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp

              memory/1176-366-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp

              memory/3964-388-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp

              memory/3964-387-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp

              memory/3964-386-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp

              memory/3964-369-0x00007FF6E6F30000-0x00007FF6E84B4000-memory.dmp