Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a6b8abc822e046…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 02:34:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 5d29413b113d6c69ece58030bb4b679d SHA-1: 0c1eddc1e7ee2f586a1f442eaef819efd179f7ce SHA-256: e7a6b8abc822e0469334528c5fc03a8539d6579c723de7503ae9c752221a6dd9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing game hacks and generators, specifically targeting Roblox and Minecraft. The primary link, http://netcdn.co/app/431946152/autou-clicker-cheat-for-jail-break-roblox-game-hack, is flagged as a malicious redirector. This indicates a social engineering lure designed to trick users into visiting a potentially harmful site, likely to download malware or engage in further phishing activities.

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/autou-clicker-cheat-for-jail-break-roblox-game-hack In PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/near-tiktok-free-likes_GM835599320.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/how-to-hack-robux-with-artmoney_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/multiple-roblox-games-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/when-your-roblox-girlfriend-cheats-on-you_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/mc-update_GM479516143.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/roblox-free-audio-upload_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/roblox-gmes-were-their-isa-in-game-money-cheat_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F41 22532 bytes
SHA-256: d1cd0b4e1068de7f40011f7cb072658bca889c2dd0f47f30e1ad3f9f37e8fb21
font_01_sfnt_off0000618b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618B 19516 bytes
SHA-256: ff889ba4d96cf8c8fed95acb21507fe147b683f300d9dffbd5777afa26529a9e

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