Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d71f94217f6937…

MALICIOUS

PDF

39.1 KB Created: 2021-05-13 06:17:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ae6985b2ba532635bea893fa5d9d85b6 SHA-1: 86f9839c4f6601f09aa17c03c48190fec06142b1 SHA-256: f6d71f94217f69377e8a883ba4f2839eeff3519d7d4ce905e8ed731875926498
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a malicious redirector link disguised as a 'free generator' or 'game hack', which is a common lure for phishing or malware delivery. The document body also contains text related to 'Free Robux' and a call to action to access a generator, reinforcing the lure. While no scripts were directly extracted, the PDF structure and heuristics indicate it's designed to trick users into visiting a malicious URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/free-robux-no-anti-bot-verification-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_off0000306d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x306D 31704 bytes
SHA-256: f0b7c1a2d0c64fd159f3332b87d18cdadcf4f2ac41015240e02ed062ff6a6009
font_01_sfnt_off000076c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C5 18600 bytes
SHA-256: 8cfd8c2479ee29cd4f6dba9b0ab7f96f8a0f4a4bb194f6119df547073888af7b

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