Malicious PDF — malware analysis report

Static analysis result for SHA-256 761e4deafe02b558…

MALICIOUS

PDF

37.8 KB Created: 2020-08-13 23:24:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e1419362550561df5e75939893046e0 SHA-1: e390f36505853096e5bd329f170bcc9691aa2470 SHA-256: 761e4deafe02b558cc5e050a58293ed1f8e2fcdbd237a69325325508295dfb9f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to lure users to malicious infrastructure. The presence of multiple PDF links, some hosted on Shopify, indicates a link farm strategy, likely for SEO-based 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/pify?keyword=esame+celi+5+pdf In PDF document text
    • http://files.valley-oak-nursery.com/uploads/1/3/0/7/130740069/xitafaxuvax_moxoluriv.pdfIn PDF document text
    • http://files.pianolessonsbyjulie.com/uploads/1/3/1/3/131380868/59baef08.pdfIn PDF document text
    • http://files.sansmarket.co/uploads/1/3/0/9/130969377/288917.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/1/0428/8036/8796/files/kutanukalexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/dnd_5e_tunnel_fighter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/xiwapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8320/2711/files/71028495826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/statistical_analysis_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/71055586902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/octavia_butler_dawn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/fury_warrior_bis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1161/6418/files/essentials_config_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5088/4505/files/xusoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9261/0977/files/seruzepefukosezozin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/tulujokafesimukifu.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_off000053d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D4 5284 bytes
SHA-256: b37a2f61540d8a7cea360cbaf901b6553648fc8cd199c02b61f7713ac9cf839f
font_01_sfnt_off000065c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C5 10960 bytes
SHA-256: 75d55d2d1478d0199ef56d9b020acc0af6bb7ed2f7c14e5a1209b5a257201f7c

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