Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac2850e1d1af341b…

MALICIOUS

PDF

32.7 KB Created: 2021-06-26 04:08:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 330becb18f4afd761631cd613729b734 SHA-1: 7db949021706a40aa2e02c9864443c3c5bd11e31 SHA-256: ac2850e1d1af341b18d47c8f07298eb7dbee626a4f1915163c9c6f7a7c988a07
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robuxs' or game hacks. The document body and heuristics indicate a lure designed to trick users into visiting these sites, which likely host further malicious content or phishing pages. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.co/app/431946152/300-robuxs-for-free-game-hack In PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-hack-any-verification_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-free-promo-codes-vrp-madness_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-call-of-robloxia-5-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-hack-tool-robux-and-tix-download_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-inpect-console-working_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/increible-hack-de-robux_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-cheat-money-on-servers_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/install-roblox-free-for-pc_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-jailbreak-btools-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-for-free_GM431946152.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
font_00_sfnt_off000029d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29D1 22132 bytes
SHA-256: 291f091d3ab2ce892bdb64841e83d6fc0ad84407d3a08fe06f99dce4bb0b3f03
font_01_sfnt_off00005aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEB 19064 bytes
SHA-256: 837dd5eefe2440588122810e461fce31d9703cf8c6a66ef55f37fdb7e88a8e20

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