Malicious PDF — malware analysis report

Static analysis result for SHA-256 7baccc16770b76a5…

MALICIOUS

PDF

70.9 KB Created: 2021-02-02 23:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5a2c48c9f93480c79d80345e681b1f65 SHA-1: c89089a424fc5e20e192a02d67cd836109255010 SHA-256: 7baccc16770b76a505b4895a1396e737757dfe21c287d670198120c76ef0765f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://bologen.ru/wb?keyword=netflix%20expired%20%20won PDF link annotation
    • https://cdn.sqhk.co/luwiwaduna/Tjajf7Z/xazodarenagaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450003/normal_5fda0d78a3632.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelemusib/f1yHjij/cheap_flights_to_southampton_from_belfast_city_airport.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407749/normal_6007e88722dda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368740/normal_5ff0eb4634d30.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/dAjffhf/jebagoji.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/iVlhahj/tawix.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/11th_biology_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387562/normal_5ff18ea85d851.pdfIn PDF document text
    • http://zebolalifitu.22web.org/zolodu.pdfIn PDF document text
    • https://cdn.sqhk.co/xoberuweri/ejehjQs/best_buy_store_brooklyn_ny.pdfIn PDF document text
    • https://cdn.sqhk.co/lulufebexefe/a4ihggP/sampler_dj_online_champeta.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/egiihfs/cloud_poweramp_visualization.pdfIn PDF document text
    • https://bologen.ru/wb?keyword=netflix%20expired%20%20won'%20t%20renewPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zakivijojinikij.epizy.com/canadian_food_guide_no_milk.pdfIn PDF document text
    • http://tuxesoguzegisox.epizy.com/xanagebolazonaziv.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99B 4812 bytes
SHA-256: e8e5d1cc7a753e2d0f62f765dab255ca786b3c11d674f1ea8a2f023115fdd605
font_01_sfnt_off0000ea2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2E 10660 bytes
SHA-256: 7076ab6d5a147f8c80736e64baa09686b58037501d1c86d78ba15e040c71965a