Malicious PDF — malware analysis report

Static analysis result for SHA-256 15ca4f8f7d0573fe…

MALICIOUS

PDF

44.1 KB Created: 2020-08-07 14:38:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd89535d4bda4ae099bd5619b622f094 SHA-1: 60956853696ceac5702a10ebaf89f9cad126c3eb SHA-256: 15ca4f8f7d0573fe8ba9ce36f1d4e22692cf2b65eb82da4066b8471832adaa68
194 Risk Score

Malware Insights

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

This PDF contains numerous links, many pointing to a redirector service (ttraff.com) and a large number of SEO-optimized PDF links, indicating a link farm or phishing campaign. The embedded links likely lead to malicious content or further phishing attempts. The ML classifier strongly flagged this PDF as malicious.

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=sanidad+en+camelidos+sudamericanos+pdf In PDF document text
    • http://files.treshaimsportfolio.com/uploads/1/3/1/4/131409090/muxede.pdfIn PDF document text
    • http://files.equityallies.org/uploads/1/3/1/4/131408970/meveka-vigugadomo-wavojal-laleb.pdfIn PDF document text
    • http://files.pamperedpetsbda.com/uploads/1/3/1/4/131406391/6473580.pdfIn PDF document text
    • http://files.cherrysideboutique.com/uploads/1/3/2/6/132680890/vasipuwu.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/1/0437/7437/8138/files/xatojoxege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0632/7959/files/89637648666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4839/files/rilutusalazeval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9722/5368/files/kasafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4445/4051/files/kegetukuligilapusowerumux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4882/files/61185935051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56325204281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1073/4755/files/birakitorev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0842/6143/files/45422235021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/catamaran_rx_pa_forms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/zajatokizufaguwaxivaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wozofedotomutigetipire.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_off00006bd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD8 5404 bytes
SHA-256: a36366f943255cc3865789a74efd8227f7f8785dbec58c91d9779cef2f73ace1
font_01_sfnt_off00007e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E21 11544 bytes
SHA-256: 1a92055ce6206339eb71a80494cef42b7717f4cafa746463b07ad6272ed6cbde

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