Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d7a2af971c47b1e…

MALICIOUS

PDF

35.1 KB Created: 2021-05-22 22:11:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d73cf0fe9ac23ffcadda45bed53c21fb SHA-1: 2a4407c57dd86f65f2690b9d656a0786c6f9d5fb SHA-256: 7d7a2af971c47b1e5f071482d9a967d964418b9fcde4825f91f75797444d1f2d
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and text that mimic a 'free generator' or 'game hack' lure, aligning with a phishing or scam attempt. The primary malicious link identified is https://netcdn.xyz/app/479516143/minecraft-hacks-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/479516143/minecraft-hacks-game-hack In PDF document text
    • http://islandhopper.com.au/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/free-minecraft-skins-girl_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000316b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x316B 24812 bytes
SHA-256: 6b7a1223a29a54bd255bbf15e632c229dad6a70df0be1f60f67db34b92fb53c4
font_01_sfnt_off0000698f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x698F 17740 bytes
SHA-256: 0307ae1fdf286ae380d36e270ef5c992f348f7a5470d5d5ce449782a5f21d577

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