Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69471d04d3d6e98…

MALICIOUS

PDF

39.0 KB Created: 2021-05-15 01:30:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c05c616b577ec12ecbc29dd20493383d SHA-1: 81c2abf838b2fce01151667a7cec937d24aad7ab SHA-256: a69471d04d3d6e9881138355f66543cdc75815863970cd1f0d8d1061798e16bf
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text explicitly advertising a 'Free Robux Hack' and 'game hack', directing users to a known malicious redirector. This indicates a social engineering lure designed to trick users into visiting a potentially harmful site. The document body also contains obfuscated text and references to a generator, further supporting the phishing pretext.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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-hack-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000318c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x318C 25980 bytes
SHA-256: f02eaab6e9b17abd78823f5c5730ab0aaf1b8fac7fc0595e9b3c6ac1aa5432f1
font_01_sfnt_off00006d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0D 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000076bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BC 18412 bytes
SHA-256: 8090616d8a5c0701bec53dfbbcc7430816d9db69864bd7c9067c717eb12c26b4

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