Malicious PDF — malware analysis report

Static analysis result for SHA-256 001657d2160e4e45…

MALICIOUS

PDF

39.3 KB Created: 2021-05-14 06:03:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8599689fc50f4b0c0a5671da86bc6ab5 SHA-1: a3dd00a39ea8751325860a607d2512bbe6382a62 SHA-256: 001657d2160e4e45c7d525e9f80b67f63303596943e16317dbf4bd13d833e76f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with a "free generator / game hack" lure. The embedded URL `https://netcdn.xyz/app/431946152/get-free-robux-now-game-hack` is flagged as a known malicious redirector. While no scripts were explicitly extracted, the document body contains text and links that strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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/get-free-robux-now-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
font_00_sfnt_off00003169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3169 24076 bytes
SHA-256: bc04219ddf33f1fae7cf4ce5136dacf57b5be0980235efb690219596f6ccf980
font_01_sfnt_off00006844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6844 4712 bytes
SHA-256: dd74a8b9c186f1f92a4db1854aaa3722f4ab12064c16789b745c3019beea7236
font_02_sfnt_off000077d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D9 18280 bytes
SHA-256: 538c9dd0db01d2f7ccbac1c4b1e59781ee6b2d24c7879b3cb67aab50807a8027

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