Malicious PDF — malware analysis report

Static analysis result for SHA-256 5270b86694440d4a…

MALICIOUS

PDF

41.4 KB Created: 2020-08-05 09:01:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2239dd87842a5dcb775a33a4040385c2 SHA-1: 7eac0f72d3003cdd15be004a5806e52b3b7d0106 SHA-256: 5270b86694440d4a771b41dcfe559cf165dd6f5422d6223f32bbc467627af63d
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=comma+splices+and+fused+sentences+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on cdn.shopify.com, which is flagged as a link farm. The ML classifier also strongly indicated maliciousness.

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=comma+splices+and+fused+sentences+pdf In PDF document text
    • http://files.revivalhub.eu/uploads/1/3/1/4/131437778/24571730453.pdfIn PDF document text
    • http://files.pennimanarchitects.com/uploads/1/3/1/6/131606121/7405701.pdfIn PDF document text
    • http://files.sunfoxfarm.org/uploads/1/3/0/8/130813612/dokage_junakuxapew_varovakawujisu.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/1/0437/6454/7741/files/maytag_centennial_washer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/34071365646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73792904944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4014/4534/files/50100547853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7861/4168/files/30853749994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4250/3832/files/11786646076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/73294519970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/kolafazebagaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0867/2423/files/83888827298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0724/4450/files/dagukivuriwox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/nejujexano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4430/5056/files/github_change_website_main_file.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 7

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_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 5108 bytes
SHA-256: 35efe22279ba296a1d22684571370653bbc43f63281c201e86604b39766f5e94
font_01_sfnt_off000075d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D4 10300 bytes
SHA-256: 91f1ed622a6a852f727b1c6816e664af9454d525745b31899add1db21036eb32

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