Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4927a6d68c9789a…

MALICIOUS

PDF

36.3 KB Created: 2021-05-25 10:33:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25fd09472588814b5d7efdd2d6da35e6 SHA-1: 7dc21e51e4d67200a3ff861f732ec5e6c7214faf SHA-256: a4927a6d68c9789aa3776671f0a563e19dfdc963208990aea4cd674647e43537
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to websites offering 'free generators' or 'hacks' for popular games, which is a common lure for malicious content. The heuristic firings indicate that these links lead to known malicious redirectors and are part of a game hack lure. The document body also contains a call-to-action phrase 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the deceptive nature of the document. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an intent to redirect users to malicious sites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/479516143/free-minecraft-skin-maker-game-hack In PDF document text
    • http://somvisio.es/images/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • https://youtuIn 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_off000033e2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33E2 25820 bytes
SHA-256: 74fba076b983b0ba54c38820c2acca0d547f60da39daaecb2bf9c0d3d764b671
font_01_sfnt_off00006e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E89 17740 bytes
SHA-256: 7e8236a58a56ce0148da12d4a95e9c7df934e3b28e502a8d8a58237e3f9d26f8

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