Malicious PDF — malware analysis report

Static analysis result for SHA-256 75eb9bda538d2417…

MALICIOUS

PDF

70.8 KB Created: 2021-01-29 01:58:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: f6db9857945a31290fb401db0de5756b SHA-1: a2210898aaa0fcad3585dff0d032051d28e54d9d SHA-256: 75eb9bda538d24175ef7ad16e886ecc6d76f1d4874a41a33473369cf2a619d3b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/shook?utm_term=download+music+tiles+3 PDF link annotation
    • http://malespw.xyz/marketing_project_manager_salary_san_franciscoo5hdz.pdfIn PDF document text
    • http://mnatural.space/washtenaw_community_college_academic_calendartt8nd.pdfIn PDF document text
    • http://ighelperscenter.com/kakuterowidibexezunen9xlzx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447640/normal_60079e239bba2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490757/normal_5ff085bb1dc0e.pdfIn PDF document text
    • http://lnstagramcopyrighthelps.com/65702871859zb309.pdfIn PDF document text
    • http://liketsven.xyz/zovinafiturukuzugezizbheal.pdfIn PDF document text
    • https://bigimenuxorotel.weebly.com/uploads/1/3/4/6/134655509/lexoxefuz_danunado_sowobagunejem_pevigozimel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382952/normal_5fe92870b9be3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ximupuv/87034336039.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/bitetixamol.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/juzosa.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/kadejixomet.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/manatovikuve.pdfIn PDF document text
    • http://lulikeleweworup.epizy.com/live_aus_tv_apk.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_off0000da06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA06 5244 bytes
SHA-256: ca13ee678d89460391d1eb9fbc9191871cffd8ee01323a84efdf3a972b8d68f1
font_01_sfnt_off0000ebe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE8 10108 bytes
SHA-256: 04fa816baec190a7edfe41aba4fe9cf9d8ece87252cd8699d064032ff7e5a47d