Malicious PDF — malware analysis report

Static analysis result for SHA-256 8362984f1d892fd2…

MALICIOUS

PDF

43.9 KB Created: 2020-08-15 00:30:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ba90df190af24fb80457db6880d30ad SHA-1: 9a70c7ce50fc6deb5c18874d2b120a092650166d SHA-256: 8362984f1d892fd2a2684b1e7e54e281a88eb285eb268f5018f2966ed6bc2dd1
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body text, though garbled, includes the phrase 'Kidney function lab report' and a URL that matches the malicious redirector, suggesting a phishing lure. The presence of many SEO-optimized PDF links indicates an attempt to generate traffic through search engines, likely for malicious purposes.

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=kidney+function+lab+report In PDF document text
    • http://xukinare.davidvaldezphotography.com/uploads/1/3/1/1/131164159/degaveje-gafetusis-duxedizitifed-narerunesaxide.pdfIn PDF document text
    • http://vozejuf.deadcatcomix.com/uploads/1/3/1/1/131164471/xezag.pdfIn PDF document text
    • http://files.luigisalerni.com/uploads/1/3/1/3/131398504/ludasuboza.pdfIn PDF document text
    • http://files.metalicsafety.com/uploads/1/3/0/9/130969498/rurefuzupafujuv-kozaviw-tetovelajul-voroxo.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/1/0430/7366/7225/files/jagamuxoxukadejukeseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4183/3635/files/namofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/79762370792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2829/7381/files/anime_girl_memes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/libonuwotudodipotaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7009/5521/files/xuzefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6079/7333/files/bobcat_331_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/85924315502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/83896766003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5592/2852/files/55062590675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/american_history_textbook_11th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/22852818541.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 3

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_off00006ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECF 5180 bytes
SHA-256: 3ed37e27c6c5b5df18dfb10f9b7d76a85f04a4acfa9bdc19c585e5f244e69ee3
font_01_sfnt_off0000807a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807A 9964 bytes
SHA-256: 7df8925572b3bb1cfd227ced996791a39d32efc0edc13655c5328a71f11b02b5

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