Malicious PDF — malware analysis report

Static analysis result for SHA-256 319301100701c58e…

MALICIOUS

PDF

37.2 KB Created: 2021-05-16 11:02:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8161a568595cf1f28cf7d9423f899aa1 SHA-1: de048c700cc7c1e024aa6e2ef79548f3d4931093 SHA-256: 319301100701c58e8f1eaa8dc4ef24db95f3066f405d0b2aaddcd5d72bec299c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it is a lure for a 'free generator / game hack' and links to known malicious redirector infrastructure. The embedded URL 'https://netcdn.xyz/app/431946152/robux-free-online-game-hack' is the primary indicator of malicious intent. Although no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

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/robux-free-online-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_003_off00003305.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3305 27680 bytes
SHA-256: 3f162331ee62066a6fb96c028139794ec4c7ea365b6fe8f8b4b3839df976ac54
font_01_sfnt_off00007052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7052 18208 bytes
SHA-256: 9c6e6aa5efa9903ee4d2fc70532f13b8880c04837d913a4df075592e4b137fb6

Open this report in the interactive analyzer, or submit your own file for analysis.