Malicious PDF — malware analysis report

Static analysis result for SHA-256 260acebd37572f72…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 06:36:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2689156808c6933dc7b37fe8cd66cf15 SHA-1: 8bdf4a01637a7abbd5644889dc4d3814fc081808 SHA-256: 260acebd37572f726e35e76c2cf7cfc67cca84fe6d78e5e5c34223adb888a3ab
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and multiple links, including one pointing to known malicious redirector infrastructure. The document body and heuristics indicate a lure for a "Robux Free 2021" generator, likely leading to a malicious download or exploit. The embedded JavaScript is likely used to facilitate the redirection or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 5

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/robux-free-2021-game-hack In PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-server-free-trial_GM479516143.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_off000032c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32C1 26820 bytes
SHA-256: 1505f513cc4f2f5e72e8abf156a98278deff48833b100e5583d2ffeeea1ba89d
font_01_sfnt_off00006f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F60 18416 bytes
SHA-256: 1a644f5289783458eb76ac5741ebd0afe9ba6d8f40911ca8ddb4573f3c6c1b2f

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