Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92e16ffbb896969…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 08:15:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 132fb19b755c0892cce4f9de31a99a8a SHA-1: 74ea0047e7e5a6527dc2fffe7b9e8c85bd7fe0bf SHA-256: c92e16ffbb896969b5cd69b588433fd27394b5d27587557e87bb8fe0ed03fb3a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to a 'free generator' or 'game hack' website, identified as malicious infrastructure. The document body also contains a call-to-action phrase, suggesting a lure to trick users into clicking these links. While no scripts were explicitly extracted, the nature of the links and the heuristic firings strongly indicate a phishing or social engineering attack aimed at driving users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/haktuts-coin-master-free-spins-game-hack In PDF document text
    • https://www.planetzoe.hr/files/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/free-robux-that-actually-works_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_off000030be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30BE 26280 bytes
SHA-256: 4afe88e62f36222ea59c693ae377df6f65df5b6664d3b47db6dd97227eebac70
font_01_sfnt_off00006cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF9 18196 bytes
SHA-256: d21f7c9777ff22c572caba6bc61bff535e054503ba9d308437b2513133ac2854