Malicious PDF — malware analysis report

Static analysis result for SHA-256 135442276ade0236…

MALICIOUS

PDF

68.4 KB Created: 2021-02-13 03:12:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: be4527793d0b5826d5511bc4f6a78654 SHA-1: 8733a771a2480378295fbb5f55d3d594fde30c72 SHA-256: 135442276ade023626906a5afc1fc7efd5742bf59b19c6df531037b73d5b5611
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://seumenha.ru/wix?keyword=flysight+black+pearl+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449000/normal_601b622360841.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479445/normal_5fc96b5e18010.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369630/normal_5ff34722d0e75.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/FnjjheS/76620953038.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484632/normal_5fdd45e8537dd.pdfIn PDF document text
    • http://jenesumi.iblogger.org/benefits_of_computerised_accounting_over_manual_accounting.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fceb3f3bfacb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489247/normal_602721e26edd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pedijuwugeta.rf.gd/pasifonigujisanasumokaro.pdfIn PDF document text
    • http://tesoxukezeziles.epizy.com/information_on_mac_cosmetics_products.pdfIn PDF document text
    • http://tupusivamiguta.rf.gd/22967215855.pdfIn PDF document text
    • http://xidozine.rf.gd/surgical_treatment_for_boutonniere_deformity.pdfIn PDF document text
    • http://mewokusexet.epizy.com/coastalwatch_manly_surf_report.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_off0000cf1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1B 5608 bytes
SHA-256: 14338660be26986f0c316fea665ce131e104069237e2370d8cc6bf74cbdb1f14
font_01_sfnt_off0000e210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE210 10364 bytes
SHA-256: eea50756942059e058599c8b372f21bd5dd00dabb21afea4a26e8e71cf240dac