Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a99590bf494ea5…

MALICIOUS

PDF

42.7 KB Created: 2020-08-15 01:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45ba2aa5eb25f4b61c93debc4d242c15 SHA-1: 1a3f5434fc0d0d93b9b7df8fc7950e302a2cc7e2 SHA-256: 80a99590bf494ea5fa805d4a8d8add597c390638516183658f63dc8bbc034428
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to create an SEO link farm, directing users to a malicious redirector. The primary malicious URL identified is https://ttraff.ru/wb?keyword=industrial%20urbanisation%20pdf, which is flagged as a known malicious redirector. The document's structure and embedded links suggest a phishing or scam attempt disguised as a free download.

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/wb?keyword=industrial%20urbanisation%20pdf In PDF document text
    • http://files.heatherseagraves.com/uploads/1/3/2/3/132302774/nufigidoruz-reverime-mojavo.pdfIn PDF document text
    • http://files.islandholisticsllc.com/uploads/1/3/1/4/131437380/fewenom-jirol-romame.pdfIn PDF document text
    • http://files.macsmosaics.co.nz/uploads/1/3/0/7/130740242/ravokekuwi_bajuxipemoboji.pdfIn PDF document text
    • http://files.emmagarriott.ca/uploads/1/3/2/6/132696155/5677e29659f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2218/7685/files/xedibaruxulefiril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/zivofod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51906755497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9585/files/tegakipujenadow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/kapupurepazexinomobawoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/aldol_condensation_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/pangu_ios_9._2._1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/92195118678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9621/files/furajoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/61675265648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7007/8617/files/strategic_management_notes_for_m._com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3042/files/tactics_for_the_toeic_test_introductory_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9854/6084/files/tejoj.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE4 4876 bytes
SHA-256: f42d9f6634dd08196f18677d5652ae817111efd1a806c21639f8ba9ac81fc832
font_01_sfnt_off00006e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E66 9824 bytes
SHA-256: 6f279c9f18931f3882a994590ed4375cacfc34fd26a0df588e01079b398a9056
font_02_sfnt_off00008ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFE 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378