Malicious PDF — malware analysis report

Static analysis result for SHA-256 409433f46d3c0a69…

MALICIOUS

PDF

63.8 KB Created: 2021-03-04 12:10:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b9f22b1d08e8a13172539f21e96b149a SHA-1: 1d9d55347fd25e81394f8023ddb42835a0f9372d SHA-256: 409433f46d3c0a69dd2277499949a5c8fd669782da5c5605839cd2041f065606
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/award?keyword=what+is+the+best+suv+for+safety+and+gas+mileage PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467612/normal_602f7a9c2c7fe.pdfIn PDF document text
    • http://hotel-engels.ru/tizixutorumubiduwixancl8.pdfIn PDF document text
    • http://porn77.design/vigepuxarejun8n5vt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367927/normal_5ff9ddf2ee993.pdfIn PDF document text
    • http://teksol.xyz/22973567628q8nh1.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/18313272549jqe33.pdfIn PDF document text
    • http://antonioita.fun/xekotuxazudezzuls6.pdfIn PDF document text
    • http://moymagazin.xyz/gufofamo2m37.pdfIn PDF document text
    • http://topcreditscore.info/tugejaode9.pdfIn PDF document text
    • http://vash-fasad.live/what_are_the_different_types_of_patents_in_the_usw776o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zifezerolivuba.epizy.com/bolixogoxoz.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_off0000bd7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD7B 5636 bytes
SHA-256: cd1bb641f23c252ee77ab9eb78a43446d31bdecd76fde365af41bb1dae3b7df9
font_01_sfnt_off0000d08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08F 9880 bytes
SHA-256: 19eefecdc2b5ee9333f55f4c1b87026bea4b7c977c1d5310ac0986c3e53705c9