Malicious PDF — malware analysis report

Static analysis result for SHA-256 99c510e594a2c29f…

MALICIOUS

PDF

36.6 KB Created: 2021-05-18 03:35:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 705516cd46b878777573524fe9c88043 SHA-1: eb3a1448f70139a99cf76fa4c4af12c3247563e7 SHA-256: 99c510e594a2c29f1954e8f7eb306940042b79042cabb91764a268b93ac95ed2
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a "free generator / game hack". The document body also contains a prominent call to action to "CLICK HERE TO ACCESS MINECRAFT GENERATOR", reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or scam attempt designed to lead users to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/minecraft-pe-hacks-game-hack In 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_off00003479.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3479 25684 bytes
SHA-256: 58cb84868c8a04e28fcd8b9f22f5a3c3440e14d53f7504636bf5883ad7700b7b
font_01_sfnt_off00006f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F53 17892 bytes
SHA-256: fda2b16deba9a1c4b3626a8ad3479d009d1f56903d8778c05817a0c1608b8b5f

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