Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebbcbff7b1b58e2c…

MALICIOUS

PDF

30.3 KB Created: 2021-06-28 23:58:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ca7f8464175b274bd54dd55e6f781565 SHA-1: 947efc429743d2bd972b20f287603c7ef3b1e218 SHA-256: ebbcbff7b1b58e2c610607c9a45117797cd664cecfdc539ec6ccfd3ddcd15d85
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on them, promising free game hacks and currency. The primary link, http://netcdn.co/app/431946152/free-supreme-roblox-game-hack, appears to be a malicious redirector. The document's structure and content strongly suggest a phishing or scam attempt, likely to lead users to sites that host malware or attempt further social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-supreme-roblox-game-hack In PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/tiktok-free-watermark_GM835599320.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/this-app-gives-you-free-robux-yt_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-promo-codes-real_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-upload-multiple-music-to-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/robux-free-real-obby_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3228 21576 bytes
SHA-256: d8508e6617f0534f5dade401f3c17bf7b41ddfcdcb081df4c5086f94c288952f

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