Malicious PDF — malware analysis report

Static analysis result for SHA-256 7097ff40585d9862…

MALICIOUS

PDF

33.2 KB Created: 2021-06-29 18:16:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a236186496d6564b75d7ea02dfd66dcb SHA-1: 645749634ac1517c40e81b6774288df9f65334aa SHA-256: 7097ff40585d9862b112f714f9870d9d1287d1be2435788f73292b3ee2975b1e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent call-to-action in its body text, luring users to download free Robux. The ML classifier strongly flagged this PDF as malicious, and the primary external URI points to a suspicious download link. While no scripts were directly extracted, the nature of the lure and the embedded URLs suggest an attempt to deliver a second-stage payload, likely a downloader or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/get-free-robux-just-enter-username-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/tiktok-free-no-sign-in_GM835599320.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-bubble-gum-simulator-steal-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/von-roblox-facebook-hacken_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/paid-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-no-fake-no-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/black-shirt-free-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-engine-for-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/como-hackear-a-tu-amigo-en-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/pastebincom-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-kingdom_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_off00002dc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC3 21244 bytes
SHA-256: b6aca2b25de0c9504d3f68776c81fb654ee09e818ee46f325e7dc314c0b716ae
font_01_sfnt_off00005c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C08 19244 bytes
SHA-256: 80b6b85b8135558e7cc2d37a173682671167069bae27035d0d5a729206037f8f

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