Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3c1f0e8a8ceba13…

MALICIOUS

PDF

38.7 KB Created: 2020-09-26 16:15:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c772349ad72e07ec31852b3c8c26353 SHA-1: 3cbec648ec07541e66a810d096c20ea766fd3ca5 SHA-256: f3c1f0e8a8ceba130f4543fb379485f6d11e49ecf701d73d9357c972163584c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains embedded links that are part of a link farm, with many pointing to Shopify domains. However, one critical heuristic indicates a direct link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wb?keyword=dyson%20am05%20manual', suggesting a lure to a malicious site disguised as a product manual. The presence of numerous external PDF links, many of which are hosted on benign platforms but some lead to unknown or potentially malicious domains, indicates a distribution mechanism for further malicious content.

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=dyson%20am05%20manual In PDF document text
    • http://fiwev.artedk.com/uploads/1/3/2/6/132696323/degupiw.pdfIn PDF document text
    • http://koliset.tradervidz.com/uploads/1/3/1/3/131379824/1813425.pdfIn PDF document text
    • http://files.karmiconnection.com/uploads/1/3/0/7/130739490/f5402cf35117e39.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/1/0431/5096/6950/files/citation_format_for_conference_presentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5070/9671/files/inventions_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/84833242179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3658/9730/files/nutrition_diagnostic_terminology_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2802/7304/files/96512607159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/carbon_nanotubes_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/giwunef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9641/9741/files/36312094257.pdfIn PDF document text
    • https://2e9412aa-e272-447a-b1d4-1cfd59af203f.filesusr.com/ugd/24deb6_c240d352066d45a08f4bab19d3fce481.pdf?index=trueIn PDF document text
    • https://6023bba1-2ead-4b0b-8a37-84e8de78cc96.filesusr.com/ugd/24853a_57ed8091e31e4cdf9d80d3edc4e6c85e.pdf?index=trueIn PDF document text
    • https://6263390b-2ff7-4d73-82c9-169541db680e.filesusr.com/ugd/12daa7_0347c3fe883841a7ba61ce40ad749d07.pdf?index=trueIn PDF document text
    • https://d1cd67e3-9b1c-472c-8ffe-2a99668c28b7.filesusr.com/ugd/4dbf3f_30d4e4d4ae224330981eda87b2110cda.pdf?index=trueIn 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 1

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_off00005967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5967 5100 bytes
SHA-256: 3cf05a96bdad0184405be9bf00286c3d1d5de6d1b1508324027969f66d556675
font_01_sfnt_off00006ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC0 10468 bytes
SHA-256: 72591bfce8bdc3108a2d1564f458e784fc26689bd1a964e1db23831d1577379d

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