Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66415bd9178746f…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 15:39:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 162a9467753ee160497902f4aa153b24 SHA-1: ae9672ee9aa7446874fed9ba697e3a8c7a7fe44e SHA-256: d66415bd9178746fac1f81f14db4f68268078f1bae684ba994d02ce3735678b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising "free generators" and "game hacks" for popular games. The primary lure appears to be a "free minecoins generator" for Minecraft, directing users to the URL https://netcdn.xyz/app/479516143/minecraft-free-minecoins-game-hack. The presence of multiple similar URLs suggests a campaign distributing these lures. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-free-minecoins-game-hack In PDF document text
    • http://projectunionstreet.com/library/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/promo-codes-to-get-free-robux_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_off00004d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D01 25044 bytes
SHA-256: 7fa3e6d498978071f7359c34d1472fd47b321f194ae9186772e58bf7f0007abf
font_01_sfnt_off00008532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8532 17712 bytes
SHA-256: 84922fa40070066ef4f1a201e85f9de45244526ee00faa1dc92053ed0f889265

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