Malicious PDF — malware analysis report

Static analysis result for SHA-256 f782e8abc5a93a75…

MALICIOUS

PDF

39.3 KB Created: 2021-05-12 17:04:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dff609e69e9dd7abfb2cf022161bb5df SHA-1: b66894c6df67a17bdc7dd6951b97eb87332a8b58 SHA-256: f782e8abc5a93a7528934db82b65b51ab7112cd27af6f3a6c2d199f584a6d61b
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body also contains a prominent call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure. While no scripts were extracted, the PDF's structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/free-roblox-girl-clothes-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003426.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3426 25048 bytes
SHA-256: 46dd45f10ff19dd86337b2fb5fb112077ced102a97d1218984188e439c54721d
font_01_sfnt_off00006e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6F 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000781d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781D 18340 bytes
SHA-256: 92d168e787027ad63a39dc76f4e84211c36f944a19cda74dea389f84a695b5a1

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