Malicious PDF — malware analysis report

Static analysis result for SHA-256 810e7c2e9f4f7e45…

MALICIOUS

PDF

84.9 KB Created: 2021-03-14 22:45:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9baa724f8fe593a02969747cd1aa3e35 SHA-1: 26bed971cbca8fd1a7c47538410a96e68dd112d4 SHA-256: 810e7c2e9f4f7e456fe5934e79adfee03632b9392ddd0df7cea58fe9fde64021
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file exhibits characteristics of a phishing lure, employing SEO tactics and redirectors to entice users to download further content. The presence of numerous external links, many pointing to file-sharing services, suggests an attempt to distribute malicious payloads or lead users to phishing sites. While no scripts were directly extracted, the PDF structure and heuristic firings strongly indicate a malicious intent to deceive users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=the+thin+man+book+pdf PDF link annotation
    • https://cdn.sqhk.co/duputokodoz/fha5ieq/turbo_dismount_full_game_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421056/normal_5ff523e902631.pdfIn PDF document text
    • https://cdn.sqhk.co/nabotogemobe/eja7NIl/55956252309.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/tijubirumaditulapon.pdfIn PDF document text
    • https://cdn.sqhk.co/bamebuxi/ajcggiw/josejeronigepos.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/xagotowezijitudalu.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/67037568292.pdfIn PDF document text
    • https://cdn.sqhk.co/moxulofilose/hi4K3Jy/95900911620.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/69282385601.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/miles_davis_milestones_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/pedro_como_agua_para_chocolate_autor_biografia.pdfIn PDF document text
    • https://cdn.sqhk.co/wituruxa/WAiddhi/nerako.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390051/normal_5fd3afcaa30d1.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/volkswagen_touareg_2012_brochure.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/dremel_4200_quit_working.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484118/normal_60321039f3486.pdfIn PDF document text
    • https://cdn.sqhk.co/pijajawopoji/b361sji/21268105883.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://144ece88-722e-4d59-a9d1-ae16887514c2.filesusr.com/ugd/48b17f_0cf10381dbc54f6f83d9ca8912966d7f.pdf?index=trueIn PDF document text
    • https://9d50af6f-dbf7-41ba-b854-83985329a12b.filesusr.com/ugd/33c377_3a83abc617534cbfacf5436cf93c9a85.pdf?index=trueIn PDF document text
    • https://7fc1e5b2-1dd8-4457-9de2-3dea1ab9f589.filesusr.com/ugd/fedd61_c6cb0f32118743929479341337945cea.pdf?index=trueIn PDF document text
    • https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_9fac581ca87142d1a0fa927b8863506d.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF989 5128 bytes
SHA-256: b5aaa04525a429a5eb3b25446cd73cfd4f98c77ed0a4bde76c5fb5280c61377f
font_01_sfnt_off00010acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACF 10728 bytes
SHA-256: c47352d38fd7a85ba6ee408575bd6589b9b60dc45e4f86f30b9f0581ec21b735
font_02_sfnt_off00012fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FB4 16116 bytes
SHA-256: 66cd902b334fc3a8a450b3b7a42ffe5031cba7a4412f01eb774febfebf38087b