Malicious PDF — malware analysis report

Static analysis result for SHA-256 7559d22492481718…

MALICIOUS

PDF

34.9 KB Created: 2021-06-21 11:10:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b26be6bdb4171d4b386c425cb1330cc5 SHA-1: 56b84123b5140a8a2fffa44badc55fa9765fd3bc SHA-256: 7559d22492481718b07c348c7a8d03f957a54eeaa06a489b70089d9d4c0b083d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/games-on-roblox-that-give-you-real-free-robux-game-hack PDF link annotation
    • http://kfz-service-etp.de/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/paint-net-free-download-for-roblox_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://kfz-service-etp.de/images/comment-hacker-et-avoir-des-robux-gratuitement_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-hack-robux-hack-com_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/robux-today_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/drawings-on-roblox-free-draw-2_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/cheat-engine-work-on-roblox_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/lazyblocks-com-robux_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_off00002f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2A 22572 bytes
SHA-256: 93ad27060493e19b92b337c27bce6d086642e2e70a85e2341a7fdb3dfd7ffe3f
font_01_sfnt_off00006173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 19716 bytes
SHA-256: 3217d2b45e6aba390097db31ed4f489c97a69b2175e2ab7441deb7edbbce2f2f

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