Malicious PDF — malware analysis report

Static analysis result for SHA-256 085088fde5b5a492…

MALICIOUS

PDF

41.0 KB Created: 2020-08-04 10:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9629f9f4089e88d0b58fe108dbe24536 SHA-1: 608661b5b498a0dbfea589ffe9886830d3020522 SHA-256: 085088fde5b5a4923545972771ac5d7bbc88033d4b4662b519343006a8b25a04
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to a redirector infrastructure. The primary malicious link identified is https://ttraff.ru/pify?keyword=angiosperm+anatomy+book+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting an attempt to trick users into downloading potentially malicious content by posing as a free book. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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://ttraff.ru/pify?keyword=angiosperm+anatomy+book+pdf In PDF document text
    • http://files.trevorlakecomputers.com/uploads/1/3/0/7/130776542/xesog.pdfIn PDF document text
    • http://files.myprobiotickitchen.com/uploads/1/3/1/3/131384468/zikizig.pdfIn PDF document text
    • http://files.lafayetteschoolrestoration.com/uploads/1/3/1/3/131398357/nutuva.pdfIn PDF document text
    • http://files.michellemounts.com/uploads/1/3/0/7/130776032/06d411227a46.pdfIn PDF document text
    • http://files.eguastella.com/uploads/1/3/0/9/130969546/4582363.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/14953230617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1617/5263/files/30254133869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/6475332412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6640/8603/files/dojoxabaperuzixip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/40606683022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/77861297418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/pigasefesinisofifugavejoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8671/files/jenewagusafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/hoover_windtunnel_2_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4494/6588/files/40703950507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/tusira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/64232609801.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000625b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625B 5624 bytes
SHA-256: 6a1f17899eb0f737eaf0a3cee840d26ef72e02be9144b4e8deb5de4b1a7d5029
font_01_sfnt_off00007579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7579 9880 bytes
SHA-256: 379287ab1a4ffcc0f9668de54b76a03745b9708b201516f85845b68cd6ef6c5f

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