Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d95c3121a1447d2…

MALICIOUS

PDF

33.7 KB Created: 2020-08-26 15:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66a83702ca448e85c90a902745f24fa9 SHA-1: e46c440dfb09bc416cea7cc519b445f8f29b5112 SHA-256: 6d95c3121a1447d216f906d17f800bb58117991c8f7b5c65d93f10cf763ebf88
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=clasificacion+de+barrenas+de+perforacion'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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=clasificacion+de+barrenas+de+perforacion In PDF document text
    • http://pupefinax.robynpforrryan.com/uploads/1/3/2/6/132696063/pegekepogon.pdfIn PDF document text
    • http://dimeluvev.gtmhic.com/uploads/1/3/1/8/131871390/3fe58a854801b5.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/1/0435/0181/3915/files/34863979583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7486/3772/files/fight_club_full_movie_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/kitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5974/files/basic_computer_knowledge_in_bengali_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67295211500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/ketinuzavobopulopewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/install_android_auto_on_2016_mazda_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3483/files/42660659950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0453/2648/files/77710446378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9423/6572/files/camping_and_cabins_guide_florida_state_parks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8602/1543/files/44101914755.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_off000045bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45BC 5196 bytes
SHA-256: 4af30307b8579a1ce287bc0809b612d7466adf59792b3b15705cb6aa4873bef6
font_01_sfnt_off00005764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5764 10108 bytes
SHA-256: ce0598e2fcbc123cac2c98d0ef37d30423ffa4037ed30d30353eea10aeb4e884

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