Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f35701a55fb0b40…

MALICIOUS

PDF

39.1 KB Created: 2021-05-21 23:15:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 734a7b480f428a7dc85d64fd7dc9bfef SHA-1: 8aa81272c47f3006d3a79a563b94a2f9e00c9ebe SHA-256: 7f35701a55fb0b409313619d41beb13ad9b4739b3f19648d2265ce1b1834e1b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristic firings indicate a lure for 'free Robux' or game hacks, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious workflow designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/earn-free-robux-game-hack In PDF document text
    • http://scarlier.fr/images/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://scarlier.fr/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/more-robux_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/como-hackear-coin-master-iphone_GM406889139.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
font_00_sfnt_off0000316c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x316C 25796 bytes
SHA-256: 705d9ef5c7c3ab9a0f459b510c7713c03900e3d2de6d2929de940d97f1b341f8
font_01_sfnt_off00006dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEC 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000779b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779B 18244 bytes
SHA-256: 032754c85be32afc54ce42ff57082bfda3d842c531a4409870c690b3212eb60e

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