Malicious PDF — malware analysis report

Static analysis result for SHA-256 67452df7d7bcbbe8…

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 22:35:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 199762d67954feb30762bc1d15835b7e SHA-1: 6f0d4d8e093b1304331bbdd836ec46a7bec361da SHA-256: 67452df7d7bcbbe8692db3546160ffbd03aec5d73ad2b95549d212c579623e30
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically luring users with promises of game hacks. The document body, though heavily obfuscated, contains text related to 'Free Roblox Accounts With Robux' and a URL pointing to a known malicious redirector. No scripts were extracted, but the presence of malicious links strongly suggests an attempt to lead the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier clean score 0.0366

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-roblox-accounts-with-robux-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_off00003549.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3549 38220 bytes
SHA-256: 4ed4444fcf91046e75bb9b4e335cd63bf9b54c03a6c196a270ce8f2838278ab9
font_01_sfnt_off00008a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A4F 18676 bytes
SHA-256: 4ebcf990001f3b6d5b8f187221ce9c528a6bcbfca241b55ad06a715c23028265

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