Malicious PDF — malware analysis report

Static analysis result for SHA-256 26b3b17cce05da8d…

MALICIOUS

PDF

64.2 KB Created: 2020-08-05 12:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75ad6ca1d2b6a9efd41412391ddf7f29 SHA-1: 3debf1313eed86371fae8da15f08ab55c397e2fd SHA-256: 26b3b17cce05da8d597c5c3ed4ff8e658a29ea811f8bbcebdabd69220e8a631c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=consonant+and+vowel+chart+pdf'. The document body, though heavily obfuscated, contains this URL and other links to Shopify domains, suggesting a lure to download further content. The presence of multiple PDF links points towards a link farm strategy, likely to improve search engine ranking and attract victims.

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.cc/pify?keyword=consonant+and+vowel+chart+pdf In PDF document text
    • http://files.pur-pro.com/uploads/1/3/0/7/130775350/teninir.pdfIn PDF document text
    • http://files.castcoverstasmania.com/uploads/1/3/0/8/130813458/tixomefajafuter.pdfIn PDF document text
    • http://files.mrsrosatosclass.com/uploads/1/3/2/6/132681901/notaxamonevelis.pdfIn PDF document text
    • http://files.bennewitzdds.com/uploads/1/3/1/8/131872021/a39f0fd.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/1/0431/6086/2882/files/85880807055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7644/2519/files/fepulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8463/4530/files/30628862076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/44647948007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/xezanonukaxezavorevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5655/4394/files/juvirojodeluvajesokikof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9030/3393/files/64154612312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/zukoxanasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3758/1734/files/marketing_strategy_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2812/5595/files/bassam_tibi_islamism_and_islam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/sumarinoniti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/xifusozenaruxedurepig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/vumipilawotiraburesamobif.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_off0000a5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5FE 5300 bytes
SHA-256: 2c23b569838313b67534bff3e7fde2dead84a922480d11fceff693c07d4ee74b
font_01_sfnt_off0000b80e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB80E 19588 bytes
SHA-256: c69746b9fc29bbbfe50dca72f74383c0ef95f1aa58885ef1f205e6887045ba5f