Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a1597ee1d62f6ae…

MALICIOUS

PDF

40.4 KB Created: 2020-08-18 23:29:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ef4f940d250089bbff5f01526617f07 SHA-1: 51119051819d4004692b78a4b9cd3f35dc89e145 SHA-256: 6a1597ee1d62f6ae4c3b0594b57ca97432dcb4a724a35907d51093047e927d9e
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL is 'https://ttraff.ru/pify?keyword=coordinate+geometry+worksheet+class+9', which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on Shopify and other domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly indicates 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.ru/pify?keyword=coordinate+geometry+worksheet+class+9 In PDF document text
    • http://towujaru.pacingpics.com/uploads/1/3/0/8/130814328/rodev-xuzaxanarawaze.pdfIn PDF document text
    • http://files.superawesomevolleyball.com/uploads/1/3/1/4/131438604/0e522b.pdfIn PDF document text
    • http://files.evolutionmeetings.org/uploads/1/3/0/8/130874598/mafax.pdfIn PDF document text
    • http://defasu.loynohonors.com/uploads/1/3/2/7/132741555/nodeligofedi.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/1/0430/5027/0869/files/menobekazesafisubuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2812/5595/files/cambridge_checkpoint_science_3_peter_d_riley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8195/6518/files/singapore_airlines_company_profile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2675/0357/files/lurirajaliloligegoguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7616/5536/files/60603794506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3488/9627/files/probability_math_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/54232343305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3202/6008/files/dolasotasixozirejazop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/wallpaper_iphone_xs_max_full_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/jaxabupu.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 4

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_off00005dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCA 5672 bytes
SHA-256: 3dbbcf726b1214c466f66a1e77112905cbfc545456dd2702383c53410f4246f5
font_01_sfnt_off0000710c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 10492 bytes
SHA-256: 8a01fab0e35b7e760d4ab5d62d808ffcaf97c647703f3fac5c1556ad41031adf

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