Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9f7161a27a75f0…

MALICIOUS

PDF

42.3 KB Created: 2020-08-17 01:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b218d61813dc65a9419740e2c9f35802 SHA-1: d87c820039fead649cf4332d4a248e0fa054719f SHA-256: 6e9f7161a27a75f0877532cb32bb69580081adf30a09a4ef50f2d9d59a0ef8aa
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 infrastructure at `https://ttraff.com/pify?keyword=pc+building+simulator+ios`. This redirector is likely used to obscure the final malicious destination and is part of a link farm strategy. The document body, though heavily obfuscated, also contains the same redirector URL, suggesting a phishing or scam attempt.

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=pc+building+simulator+ios In PDF document text
    • http://files.macdesignthinking.com/uploads/1/3/1/4/131407855/vitogera.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/1/0428/9763/7535/files/dofevut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/punegowikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8699/3813/files/manual_accounting_system_vs_computerized_accounting_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/71915897173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/faleno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/agresti_franklin_statistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/rubebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1180/0220/files/superdry_size_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/9225/7441/files/o_que__apropriao_cultural.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEC 5400 bytes
SHA-256: cef6a69372e516038e2391d27669d395e6d2175eec88b18d542349c8f9a3995e
font_01_sfnt_off0000721d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721D 13576 bytes
SHA-256: 3c12a50fec31e456b8f9b5a7acc45b37f0ace963ca91554a6ce1392ac5e64334