Malicious PDF — malware analysis report

Static analysis result for SHA-256 505dec1e06a414d8…

MALICIOUS

PDF

35.1 KB Created: 2021-05-23 08:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 69b7a7434124343c5009115d504c450f SHA-1: 7c324e21bf5b05e689cf5b8adce30542d3bbc3b0 SHA-256: 505dec1e06a414d84ecde31fbd3c47259c23fd275af463c479b78a74a5da0460
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, specifically advertising 'free Robux scripts' and 'game hacks'. The document body includes deceptive text and a call-to-action button, aiming to trick the user into clicking the malicious URLs. The ML classifier also flagged this PDF as malicious, supporting the assessment of a phishing or scam attempt.

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-script-game-hack In PDF document text
    • http://subarulegacy.com/images/roblox-2021_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://subarulegacy.com/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/hack-client_GM479516143.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-real-free-spins_GM406889139.pdfIn 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_002_off00002de3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DE3 25020 bytes
SHA-256: 181978f70c5d7d6b009e7536bc99009ce01527659d853c0cd479c81a5c28450c
font_01_sfnt_off00006760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6760 18416 bytes
SHA-256: 7904477eb6282cb79bb1f8d95588be1a5283b3abf5667e30a4d761915d4b26ef

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