Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2f469241b29a51…

MALICIOUS

PDF

45.6 KB Created: 2021-05-15 03:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 548ac31f73e52c340f2ba14b8ea209f8 SHA-1: f6d5f22279a8156ebaed6567215174ae7bf62ee8 SHA-256: fb2f469241b29a51c16b81f7e1740c125a939139aaf88d260a38c7ba4b52033c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically targeting users with lures for game hacks and free currency. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the primary attack vector is the redirection to malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/431946152/2021-roblox-game-hack In PDF document text
    • http://algierimasonry.com/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/get-robux-today_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/roblox-hack-unlimited-robux_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB7 25404 bytes
SHA-256: 49515057a9e8c599e409d7082b0b1e8fad4ed45c4f4dca1490bc85a10b213c0f
font_01_sfnt_off000085d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D4 2880 bytes
SHA-256: 106de1d187d148d03f5c34a802444a7e62d93662ddf359d17cd55770c6c16081
font_02_sfnt_off00008fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC4 18184 bytes
SHA-256: 056fc97d28377ebe533b38410a286871364a28d37687da14045fa683fef2556f

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