Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d80e5fc5c29e836…

MALICIOUS

PDF

41.0 KB Created: 2020-08-07 21:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8ca7adf2ab8f878cc9bbdaf90babf56 SHA-1: 2b46615c8a28484493e761c29b5d480eff35db56 SHA-256: 5d80e5fc5c29e836ad78c03f73f3905e461b8f30cda5b60ab4d6fb314223e760
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links designed to appear as a free book download resource. These links, however, redirect through malicious infrastructure, specifically `https://ttraff.cc/pify?keyword=el+alquimista+libro+pdf+gratis`, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=el+alquimista+libro+pdf+gratis In PDF document text
    • http://zutarusur.elderresourcesofri.com/uploads/1/3/1/4/131408027/3643362.pdfIn PDF document text
    • http://files.mghbefit.com/uploads/1/3/1/3/131379719/lovomix.pdfIn PDF document text
    • http://files.kulanuicounseling.com/uploads/1/3/0/8/130813923/534199.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/wotedosepano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2179/1395/files/cathflo_package_insert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/zatolewobutirujem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/resugumefepukilulij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/nimagef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/weathering_definition_geography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5657/9228/files/paracetamol_induced_hepatotoxicity_in_rats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/37563908957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/nukidoradebizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/62367468364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/65221391393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7304/4642/files/xixegelaxaleku.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 4

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_off00005fd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD4 5584 bytes
SHA-256: 6add06039fd725eb8411d890bf85070a629a506f208163299090c97f6b0043ab
font_01_sfnt_off000072ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AC 10608 bytes
SHA-256: 08747f045949b30b1bc906964fe3eab9f19059aa4ea6d06ed41f5e485052e4b0

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