Malicious PDF — malware analysis report

Static analysis result for SHA-256 915ae1681c30f294…

MALICIOUS

PDF

33.7 KB Created: 2021-07-07 15:47:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 715ce547b84f73e66572ff6fcc2b8d37 SHA-1: 2ba121d6adc3833fdebaa8b5b30a4daa0c85e8f6 SHA-256: 915ae1681c30f294e4be2295bbb2256f6f5ab0fa709d29f8e231cf496ae4d1f0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to redirector domains, masquerading as free game hacks and currency generators. The primary link, http://netcdn.tw/app/479516143/minecraft-windows-10-edition-free-download-game-hack, is flagged as a known malicious redirector. The document's content and embedded URLs strongly suggest a phishing or malware distribution attempt, likely using a spearphishing attachment as the initial access vector.

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.tw/app/479516143/minecraft-windows-10-edition-free-download-game-hack In PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/block-best-robux_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-hack-tool-site_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/objet-roblox-librairie-free_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-hack-999999-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-r-free_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_off00002dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC0 22136 bytes
SHA-256: 2aa28faebede43cd77c91afd65cd4094ab065b1cc1febf3b36fb4038913ec2b6
font_01_sfnt_off00005e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E95 19056 bytes
SHA-256: 1fbd96916373957abb899fec4ad8fc3866d81e0306805064b2b02ab8661ee979

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