Malicious PDF — malware analysis report

Static analysis result for SHA-256 87427e569acc00d0…

MALICIOUS

PDF

54.8 KB Created: 2020-08-16 02:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3f53d48dbf5aa7a7731d771b4e3e748 SHA-1: 090c8ff043189ef5a07002f81537e32d154e6726 SHA-256: 87427e569acc00d03d5b949d2992d9bc6b10b46619aed5173755a16cc2940b7b
202 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to SEO link farms and redirectors. The primary redirector, https://ttraff.ru/wb?keyword=autodesk%20fusion%20360%20black%20book%20pdf, is flagged as malicious. The document's structure and link farm behavior suggest it is designed to distribute malware or lead users to phishing sites. No scripts were extracted, but the embedded links are the primary vector for malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=autodesk%20fusion%20360%20black%20book%20pdf In PDF document text
    • http://files.brooksidepathfinder.com/uploads/1/3/0/9/130969146/sazuxa.pdfIn PDF document text
    • http://files.insonify.com/uploads/1/3/1/8/131857758/zamoxizunezalix.pdfIn PDF document text
    • http://sukikos.walking-in-their-shoes.com/uploads/1/3/1/4/131406062/1981520.pdfIn PDF document text
    • http://dowevomi.bnsfrr.net/uploads/1/3/0/9/130969061/xuxabubawej-sitopopat.pdfIn PDF document text
    • http://files.conwayfeedandgarden.com/uploads/1/3/1/4/131438844/kikesemijowirin_furilumofos_xuxazutas_fozural.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/1/0433/0687/7080/files/wiwatubaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/92782387411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4259/3189/files/wurogopunujurobab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/committee_on_publication_ethics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8884/3686/files/react_link_component.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4326/files/romawutiwidedid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/55734576544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/jarija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/gubigodiwem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3325/5323/files/kadogemiratefirewa.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_off00009651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9651 5708 bytes
SHA-256: 4dae0a1a71eab7341dacd9272242f177d7154a60996ef49a36cddcf37808c256
font_01_sfnt_off0000a9be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9BE 10716 bytes
SHA-256: c7ae2cc1a049b1dcacab21806245a6ca69d805256bfda66884a6ae768149dcb3

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