Malicious PDF — malware analysis report

Static analysis result for SHA-256 66c1ed319be83dd0…

MALICIOUS

PDF

95.2 KB Created: 2020-08-10 12:42:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77b7b3fea776cac3ebc7c75bbdba73b0 SHA-1: d1be63a4f3d349110c48f86090dcee59f8db6a97 SHA-256: 66c1ed319be83dd0b8de4faaf333c8c0b5573d4bc2ad30ba5022d9eee52fbfc3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lead users to a link farm. The embedded URL 'https://ttraff.com/pify?keyword=automating+inequality+virginia+eubanks+pdf' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary purpose is to drive traffic to this malicious site.

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.com/pify?keyword=automating+inequality+virginia+eubanks+pdf In PDF document text
    • http://files.lakeshorequiltcompany.com/uploads/1/3/2/6/132681488/2361988.pdfIn PDF document text
    • http://files.northopchurch.org/uploads/1/3/0/7/130740078/pavoberata.pdfIn PDF document text
    • http://sagisedi.huanirataxservices.com/uploads/1/3/0/8/130874493/89da9d73259.pdfIn PDF document text
    • http://files.morganraebrown.com/uploads/1/3/1/4/131411474/gixake.pdfIn PDF document text
    • http://lukuri.jimpendergrass.com/uploads/1/3/0/7/130775062/sapubofatibo.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/1/0435/2425/9992/files/44624088773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/toastmasters_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/29077482696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5770/8185/files/satel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/8890770785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/pamixopivaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifivejeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/setinabepodobanon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/lunukawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/92583728341.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_off000136e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136E6 5844 bytes
SHA-256: 8ecc37339165ae4a6152622b21916c113f3463e3bae2016d55aba3e55447abb4
font_01_sfnt_off00014ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AB5 10816 bytes
SHA-256: 5d7f8875827dcf5ba648c6906079c35989497317970c1112c870e658931d1b10

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