Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a5869ddb6f2785…

MALICIOUS

PDF

70.5 KB Created: 2020-08-07 09:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83d5698aa399291855d88c1756355e7f SHA-1: 041ee8d8db1cf3104108d804e33d64621b89289d SHA-256: 09a5869ddb6f2785178c70cd66f6da51596830a5eeda182af44d201fa840afcb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt using a link farm to distribute malware or lead users to malicious sites.

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=nbc+bearing+pdf+file In PDF document text
    • http://files.gokellyandco.com/uploads/1/3/0/7/130775134/juvemoxazatinazogor.pdfIn PDF document text
    • http://files.candleandbodyshop.com/uploads/1/3/2/7/132741334/4150313.pdfIn PDF document text
    • http://files.silverlakebarroncounty.com/uploads/1/3/2/6/132695543/fubavixiruw.pdfIn PDF document text
    • http://files.coolstuffmontana.com/uploads/1/3/2/6/132682829/tuwog.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/1/0430/0092/2261/files/55815088097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/mozizawelasaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0904/7717/files/7522846567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0017/4504/files/somisufeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/git_checkout_remote_branch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/58675597497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/abscesso_hepatico_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/19185294583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8466/7297/files/wopefosevejoxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/vizilupefodubazaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6549/files/breath_of_the_wild_enemies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9443/2161/files/kofenasirilato.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_off0000d823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD823 5252 bytes
SHA-256: c72e7908d2fd86f6328093583a35a626ed376f7516d33592ce31fcd0fcfa8832
font_01_sfnt_off0000ea15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA15 10208 bytes
SHA-256: ecbbacc70b9a732a4a59086b305a8c7e7a6797ea904fb1c125f0f49c70e2f8b1

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