Malicious PDF — malware analysis report

Static analysis result for SHA-256 6817459ace93346b…

MALICIOUS

PDF

45.6 KB Created: 2021-05-17 21:32:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 68ad4c2e237cb6cd7d9459de7c5788fa SHA-1: 045d577dd5bf1edb2238de419408675cb97915ff SHA-256: 6817459ace93346bc0173674992b73767dd49484078b475d8c56191c1a8eca2b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free currency. The primary redirector URL is https://netcdn.xyz/app/431946152/how-to-get-free-robux-gift-cards-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a social engineering lure designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/how-to-get-free-robux-gift-cards-game-hack In PDF document text
    • https://www.vista-design.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/robux-gainer_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://www.vista-design.hr/files/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/coins-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-robux_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000045e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45E6 26992 bytes
SHA-256: 5d24b46d7fe13e84debb56b7f78ad37dd760221cdb32e4fb3a598ad8fe54b142
font_01_sfnt_off000083ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EC 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD6 18804 bytes
SHA-256: db707177e1a0df533614fd289cf2b470ee37edf039339bb568c3977480a042bc

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