Malicious PDF — malware analysis report

Static analysis result for SHA-256 9abb250ecb688b8d…

MALICIOUS

PDF

15.6 KB Created: 2021-05-23 16:49:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 26369111d84b4551ae5ba8814ec0b2b4 SHA-1: bd9d532fe4adb6725c70962b425a04a4cbcd86df SHA-256: 9abb250ecb688b8dd321c888965f72c96ac0d368e1149eb591edd9c5be266554
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector pointing to a "free Robux generator" lure. The document body text and embedded links reinforce this social engineering tactic. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9063

Heuristics 3

  • 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.
  • 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/free-robux-working-game-hack In PDF document text
    • https://www.wessexandrology.com/uploads/files/files/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • https://www.wessexandrology.com/uploads/files/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.wessexandrology.com/uploads/files/files/master-coin-free_GM406889139.pdfIn PDF document text
    • https://www.wessexandrology.com/uploads/files/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wessexandrology.com/uploads/files/files/coin-master-200-spin-link_GM406889139.pdfIn PDF document text

Related samples 8

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

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