Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcd8722c2640c8a…

MALICIOUS

PDF

34.6 KB Created: 2020-08-05 19:57:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d03789fcf3d8c81b9e7d6756f2879a20 SHA-1: 8dee4a972c73b20f77de9d8c08b43990e0259242 SHA-256: 0dcd8722c2640c8ab4538307788ddb5480385ee862c03ec1a656fe3cbd224297
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify and appear to be part of an SEO link farm. One prominent link, 'https://ttraff.com/wb?keyword=convertir%20foto%20a%20pdf%20a%20word', is identified as a malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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/wb?keyword=convertir%20foto%20a%20pdf%20a%20word In PDF document text
    • http://files.australasianhumanbiology.com/uploads/1/3/1/4/131406352/pibawefumivujugediz.pdfIn PDF document text
    • http://files.dougsbmr.net/uploads/1/3/0/7/130740049/2013812.pdfIn PDF document text
    • http://kibopafos.localgestures.com/uploads/1/3/0/8/130873822/4ec17e.pdfIn PDF document text
    • http://files.fleischerallstars.com/uploads/1/3/1/1/131164002/fukuxa_poripaxuvelativ_dedujox.pdfIn PDF document text
    • http://files.1169certified.com/uploads/1/3/1/1/131164174/6101979.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/1/0432/7168/4252/files/32919606297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/23177399124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/guxulokadowosov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8869/9802/files/32038065892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/21190126771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/kexudiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/fegixewamazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3929/files/susuzorekuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/tofirijidomakupeweliweb.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_off000047d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D3 4884 bytes
SHA-256: 8edd620505501161ad32ef80fb153a6e1f5ecd376454354260a8d62d81dc7eea
font_01_sfnt_off00005892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5892 10868 bytes
SHA-256: be9629b2f1c2f5b1aeec8b720ecf51cd68c706f44cd7fa0be9cc3cac71ec75e5

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