Malicious PDF — malware analysis report

Static analysis result for SHA-256 fafed8d9e1d95306…

MALICIOUS

PDF

71.4 KB Created: 2021-02-16 23:20:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 68071eb6459ac2498579cc377a2c6b73 SHA-1: b556f6102416ad83980477843f72edafb80db0ac SHA-256: fafed8d9e1d9530661b534a006298f2f3d2860a3c39f50724629524206f70ee9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=scary+stories+to+tell+in+the+dark+book+artist PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485305/normal_6018ed66df68a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476140/normal_60031e35b64eb.pdfIn PDF document text
    • https://cdn.sqhk.co/vizelupavew/b1hh9xi/best_chef_word_cookies.pdfIn PDF document text
    • https://cdn.sqhk.co/nadovexum/6ieYFwt/descargar_recargas_rapidas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404750/normal_5fc74b145c29c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376869/normal_601ff280709d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379611/normal_601bd749d81b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403947/normal_5fc69d7a8aa91.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409420/normal_5fe07c5c6313c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fepavipa.epizy.com/ipcc_special_report_on_emissions_scenarios.pdfIn PDF document text
    • http://batunat.epizy.com/gopavijefokasisuzowerob.pdfIn PDF document text
    • http://buzelijakozesi.epizy.com/conservation_of_energy_lab_report_physics.pdfIn PDF document text
    • http://lugimes.epizy.com/sesumiremowowurogaleze.pdfIn PDF document text
    • http://pibusobi.epizy.com/38697118618.pdfIn PDF document text
    • http://bilavefopu.rf.gd/fiber_waveguide_cut-_off_wavelength.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_off0000dac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC7 5436 bytes
SHA-256: 80362c36ee7580da5f8fd326e8d1d52b3a59e525e6c69eeb90089b5c314df121
font_01_sfnt_off0000ed40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED40 10408 bytes
SHA-256: 06a779a4b0ba2e0028260f726f8dbd550cf5a6fb787aaea141c38834b28f5846