Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddb0353326322bae…

MALICIOUS

PDF

37.1 KB Created: 2021-05-21 17:30:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df4900fc07349e409c111910223067c1 SHA-1: b936f2ce382dd5fee8d7ae1674dd42fd70365e32 SHA-256: ddb0353326322baeb4accdd2d1543122432e576ccba4640420ce0c055797bfb9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as game hacks and generators, specifically targeting popular games like Roblox and Coin Master. The heuristic firings indicate these links lead to malicious redirectors and are part of a lure to trick users into downloading or visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and document content strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-change-roblox-username-for-free-2021-game-hack In PDF document text
    • http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003258.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3258 24900 bytes
SHA-256: 380b5261271da6644595591bfae4a51f57e01855ace89c5b32983aa26b048d43
font_01_sfnt_off00006b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 19644 bytes
SHA-256: bf7704042115058311276e91f581871491bc3524547d766b0e7085d334bb6686

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