Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e4992d7b4091a8…

MALICIOUS

PDF

39.7 KB Created: 2020-10-26 20:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 76f5804300c101572bbc619ff37cd1ae SHA-1: 39f3adc94ab66eedf5c560f9b2d026fd3d694ef5 SHA-256: d3e4992d7b4091a8156d50e297f6d964e16d2dfdeb906c18ac2a1f53956c28d7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/wb?keyword=world%20cup%202018%20fixtures%20ist%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368243/normal_5f87d5a5d24a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369165/normal_5f88380acce45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417318/normal_5f95d57357820.pdfIn PDF document text
    • https://kivepuwepadile.weebly.com/uploads/1/3/4/3/134392404/kekal.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/tikitujone_jiwewu.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/fc781947b62.pdfIn PDF document text
    • https://kixatefibav.weebly.com/uploads/1/3/0/7/130776592/sazosafedulegobufol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367275/normal_5f89fd557f0bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5f8710c78be75.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/toguvaju/carcassonne_expansion_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/boundary_survey.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/64530846324.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/a_level_maths_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/aprendizajes_clave_programa_preescolar.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/9332388632.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/androderm_package_insert.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/fewifovenigorujabuzefu.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/voting_list.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_off00005cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD5 5540 bytes
SHA-256: 3d183278ad1806c56115db4129d23504d5a69e500c1cc602f4d3ef30b206d247
font_01_sfnt_off00006fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE9 9912 bytes
SHA-256: b6a1046209bb046af744f4aeeb4fc1d11d6a5302126d1056cb6b250fceb5674a

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