Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3347800e91c095…

MALICIOUS

PDF

38.5 KB Created: 2021-05-19 19:04:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 1bdaf7c81c913fad2db7f5ffce91279c SHA-1: 254f5b53e3f5510d490f7c4467ec98b9566ad53e SHA-256: 0d3347800e91c095a02287da98a9e716bb311253be4c9d5608d6d0cf3d2964ed
130 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/coin-master-daily-free-spins-and-coins-2021-game-hack In 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_003_off0000353e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x353E 27124 bytes
SHA-256: 9ef7b2d0422bc3d06d026cc264c9790e8027299f9e4d7fbbcf5e9602952e8c3b
font_01_sfnt_off00007380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7380 18884 bytes
SHA-256: 183333dfce930995a9382150b407cb528e1a5d3dc22f511d9bca322a4b29e614