Malicious PDF — malware analysis report

Static analysis result for SHA-256 7daa20c3f4b9d5ea…

MALICIOUS

PDF

44.1 KB Created: 2020-07-30 05:35:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2334337693ebe8b635d010f638700dbc SHA-1: f0865edae82a12d507b00175343a93385db4d4d5 SHA-256: 7daa20c3f4b9d5eaa730141a4b26b489870d9110793e583486895d3733e675da
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.com/pify?keyword=brochure+content+pdf. The document body, though heavily obfuscated, contains text suggesting it is a 'brochure content pdf'. The presence of numerous external PDF links, many hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation or to obscure the true malicious destination.

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=brochure+content+pdf In PDF document text
    • http://files.haisleyptoauction.org/uploads/1/3/1/4/131454556/jimutifomawefab_poroputob_buwagipufewojig.pdfIn PDF document text
    • http://files.drilldirect.com/uploads/1/3/2/8/132814680/fuxidogowasi.pdfIn PDF document text
    • http://files.kandopuppies.com/uploads/1/3/1/3/131398125/mexeno.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/1/0431/6574/5314/files/35379523485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6876/5848/files/nejasikegiborodalekanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5682/4471/files/75992783177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8060/6111/files/51720349479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8697/0018/files/34606266401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4845/1739/files/74498100649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/14832833782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/fakufugogorudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/kedalupexijaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/76040361080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/14111868378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9011/5736/files/77207841592.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 2

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_off0000715a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715A 4708 bytes
SHA-256: b1f9ab35b1e37f8bcf66847e0738066f4e99c16367f6e89b575024fce8c5ed0f
font_01_sfnt_off0000814c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814C 9900 bytes
SHA-256: acf16090166f8c37710198ae118e1069486e6807c72e667a3c28dfc2b4ca696a

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