Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69a2fa35fe35c85…

MALICIOUS

PDF

53.3 KB Created: 2020-08-06 23:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9caab162e04047333f83b29b81ac4caf SHA-1: 4e3097561f03438c6946b7e168da06d2cd30ea6d SHA-256: b69a2fa35fe35c85c78000f65005dafce9fb92876c9b1e6f2fc112a53699144d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate this PDF is part of a link farm designed to manipulate search engine results or direct users to malicious sites. The document body, though heavily obfuscated, contains text related to 'Ratner biomaterials science pdf', suggesting a lure to disguise malicious content as legitimate research material.

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=ratner+biomaterials+science+pdf In PDF document text
    • http://files.americancanyonchiropractic.com/uploads/1/3/2/7/132712483/wajosafoli_voxud_xemaxokileboz_guwasuduwas.pdfIn PDF document text
    • http://files.soddydaisypediatrics.com/uploads/1/3/1/4/131437285/vubeb.pdfIn PDF document text
    • http://files.joinfacet.com/uploads/1/3/1/1/131164573/witejaribadawaj-setovuxixitifa-lapijamaweza-vetasajowexux.pdfIn PDF document text
    • http://files.lockedsecurestorage.com/uploads/1/3/0/7/130740174/3806712.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/1/0432/6470/4662/files/35026783597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/bozeruxezozagerusix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/pukazetubeletatedafofegud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1549/files/jogitidisunofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7931/0239/files/usb_read_only.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3126/3394/files/43849277197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/liste_chaine_canalsat_grand_panorama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/64999528782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/funaxojurizulalupekerokiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/convertir_de_a_word_reconocimiento_de_texto_ocr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8231/files/96408611644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7070/9150/files/lekobuditiboxefofuxip.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 4

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_off00009079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9079 5448 bytes
SHA-256: ce809c581ddb8df9f84944c42f453d1137a86de0cc51e82f906918b3996f2300
font_01_sfnt_off0000a2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E9 10948 bytes
SHA-256: 113533bec31b90ba39b0e39d279c7aee1880f04388bd52651a6f3ffb60636ac2

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