Malicious PDF — malware analysis report

Static analysis result for SHA-256 4286c59a3cbee462…

MALICIOUS

PDF

44.2 KB Created: 2021-05-14 12:02:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8484710d1e478fbe7a7bb1295fcf25e8 SHA-1: dcd16d5a25d28b583bbc9d4d671ab8f961fc4587 SHA-256: 4286c59a3cbee4623259af57e04b0906d8eb2a352e780a8b9b097a68911222da
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to known malicious infrastructure, specifically targeting users interested in game hacks and free currency. The document body, though partially obfuscated, contains references to these lures and includes URLs that likely serve as landing pages for further malicious activity. The presence of a visual download button further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/406889139/blogspot-coin-master-free-spins-game-hack In PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://bibliotheque-perrigny-les-dijon.fr/images/roblox-microsoft-rewards_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_off00004a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A3F 28916 bytes
SHA-256: 82f0f01cc23737092edf6c3cd620b30de8cde1500cf023782a3387340eed6760
font_01_sfnt_off000089fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FB 18464 bytes
SHA-256: af5d8a2e7c6ce5c46c231007036c3c30da92f088fd5d2b237af1a5c438451922

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