Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8059860762f2319…

MALICIOUS

PDF

33.3 KB Created: 2021-06-17 16:25:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d63be29583528b2c523fac1841d2c513 SHA-1: c8e9b80d09e2abb73453d18357f15caa320e964d SHA-256: e8059860762f2319462b0ae9c8176f1e31288ae80b2ca66a544090f20a8a4f30
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to malicious sites. No scripts were extracted, but the presence of malicious links and the lure content indicate a high likelihood of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-robux-hack-no-downloading-apps-game-hack In PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/one-piece-millenium-roblox-found-a-hacki-book_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/ahk-free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-account-hacked-ebay_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-robux-for-kids-100-working_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-hack-a-game-roblox_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/make-roblox-t-shirts-free_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/hack-free-spin-coin-master_GM406889139.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_off00002ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADE 22340 bytes
SHA-256: 9a667e968ff7a7b589ad4511abc0904cde178098860d949ed6e8821e4a36c87a
font_01_sfnt_off00005c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C21 19412 bytes
SHA-256: 5b37ecc55d681e5d201d4a8a3bb76393c0081ff6c3d5b156067c25b903e1f178

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