Malicious PDF — malware analysis report

Static analysis result for SHA-256 2065e04b7395ab1c…

MALICIOUS

PDF

36.7 KB Created: 2021-05-13 02:01:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b99b7e99e500900bc3e461cd5b06de2 SHA-1: 6eea29551867e4d156267f66e74afe872a42c069 SHA-256: 2065e04b7395ab1c1de53dbffd65dec0971cac8e9fad95247d0647fc74cc83d0
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux No Email' and a prominent call to action to download a generator. It embeds a link that redirects to known malicious infrastructure, indicating an attempt to lead the user to a potentially harmful site or download. The document body, though heavily obfuscated, contains text related to the lure and the malicious URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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-email-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_off000031bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31BB 25572 bytes
SHA-256: c9fa8e87a397867a7a0fc945262524488d4eb93b06aa16275689172559c98646
font_01_sfnt_off00006cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD8 18696 bytes
SHA-256: c87d8ac99bb6295dbf621d5ce4d48bdb441e63486eed0d538621ad0af406e722

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