Malicious PDF — malware analysis report

Static analysis result for SHA-256 949d88ad83b81d09…

MALICIOUS

PDF

44.7 KB Created: 2020-10-30 04:11:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: 90149f2b36347fbbd32f872f0e09281d SHA-1: 1303e7dffe624c25cd6ce2870b348d67ae36ce3c SHA-256: 949d88ad83b81d097b57afe9267c14dafc336aa31850d6a4528fd8439abcb2a2
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=afscme%20council%205%20contract%20pdf In PDF document text
    • https://s3.amazonaws.com/wixamupelinere/84374094792.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375518/normal_5f8dc92dd3712.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f9178c5ab717.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f875f623e51a.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/43386584276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369630/normal_5f9a6154890d9.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/32820942364.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/calculus_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/16702963594.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/vijizadonarereliz.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/faneruvawuwomuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006c7f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006c7f.bin)
    • https://uploads.strikinglycdn.com/files/df7fb0b6-5b47-48dd-84c7-55730b2890c1/zetevezofememug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c547b242-10fc-4708-94d1-0d0e8ff2adba/mosematidojazilazifali.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 extracted file (font_00_sfnt_off00006c7f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7F 5416 bytes
SHA-256: 19371939d8aa137fd4763be0aafd52baa4f175631feb6a468e80eb2c7ae54701
font_01_sfnt_off00007edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDD 11724 bytes
SHA-256: 44dd809a164a2c77d9117f5d65a2e41a0ae130f5c9ba81b8a45286989d08a733