Malicious PDF — malware analysis report

Static analysis result for SHA-256 e90782647c8e4e86…

MALICIOUS

PDF

35.8 KB Created: 2021-05-13 11:13:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 35a768dc127e742ba63c252b8e9804df SHA-1: 15fa9d803a5411ba14125dd9cf0b8b67caf573a0 SHA-256: e90782647c8e4e860e23e76e5a29ba11f01df53ab3e316530107c6d985b823b1
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it links to malicious redirector infrastructure, specifically a lure for game hacks. The embedded URL `https://netcdn.xyz/app/479516143/free-minecraft-account-game-hack` is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest an attempt to lead the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

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-account-game-hack In PDF document text
    • https://education.minecraftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000328c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x328C 24776 bytes
SHA-256: 5f6cb9b892ade49d4630d3945d1735646745df4e308fc47b0d605234a04ffdda
font_01_sfnt_off00006be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE1 17848 bytes
SHA-256: 6e6a79a2e8d921ce4110ee7bea64574f9639f41d67ba7d7747bc91dcd849eff6

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