Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f8238f057cde34…

MALICIOUS

PDF

35.8 KB Created: 2021-05-23 04:12:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 42c3d4eeebf90d8d792a72d09115de60 SHA-1: 71e1d7cd8c67d0fa94fbb5144bc0969413b32358 SHA-256: 64f8238f057cde345b7b2aab19a0a44299141d532f8c62085e279de652a925f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to domains known for hosting malicious redirectors, specifically promoting 'free Robux' or game hacks. The document body explicitly contains a call to action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and directs users to a URL that is part of a known malicious redirect chain. This indicates a social engineering lure designed to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-verification-or-survey-game-hack In PDF document text
    • http://jenne-technik.de/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://jenne-technik.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/free-spin-appscoin-master_GM406889139.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30E9 24368 bytes
SHA-256: 78ae0edc0038bbed9044fa2b687aeb327f8c9bef99d2656f2a3c2bafa41600e3
font_01_sfnt_off000068a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A9 18892 bytes
SHA-256: 85e8471d4bb7809b16494b43ecc998cec7f87bafeaec38a3001510264e72f0e6

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