Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1ce77b039b3d3a…

MALICIOUS

PDF

35.8 KB Created: 2021-05-20 18:49:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1cc64f52586d32cc8e4632e19c602fdf SHA-1: 2eef01bb4b5dc12d04f832043322a17043d9d2e4 SHA-256: fb1ce77b039b3d3a554a0cf917a0314f756211920534a1cbf1955dd4f7457286
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising a 'free generator / game hack' for Roblox. The document body also contains text and a call-to-action phrase related to accessing this generator. This indicates a phishing or scam attempt designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/play-roblox-for-free-on-google-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_002_off00002e7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E7A 25456 bytes
SHA-256: 888c935e47458a1baec63cf8d9ee16f47014479ef091212cd1a77470bc173feb
font_01_sfnt_off00006931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6931 18796 bytes
SHA-256: 63700f01b577dfc47d2d7c093b2e3a9c26c7058fe46ada2950921e4142c9fe98