Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f90e14972a1db50…

MALICIOUS

PDF

40.9 KB Created: 2020-08-12 15:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e2be6a37d3a1df3e5b7b83e023f1033 SHA-1: dc152d405cdd7accf7475fc923eec951bb27dfe8 SHA-256: 5f90e14972a1db50a7a124ae509a6b65697e21cf567420f04dade003e390a302
194 Risk Score

Malware Insights

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

This PDF document contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to drive traffic to a redirector. The primary redirector URL, https://ttraff.ru/pify?keyword=sap+bods+study+material+pdf, is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to trick users into clicking through to malicious infrastructure.

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=sap+bods+study+material+pdf In PDF document text
    • http://files.valeriaflorescano.net/uploads/1/3/2/3/132303310/ae6dfe.pdfIn PDF document text
    • http://files.edenfarms.net/uploads/1/3/0/7/130739535/dezamipuzidipajatad.pdfIn PDF document text
    • http://files.adventuresav.com/uploads/1/3/1/4/131408970/241a9da.pdfIn PDF document text
    • http://files.sistersrobotics.com/uploads/1/3/2/8/132815206/faxobavudivuf.pdfIn PDF document text
    • http://files.novafairytales.com/uploads/1/3/1/6/131637325/zesafunofabun_duzexedate.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/1/0438/4607/4525/files/dikurodukexiniguxapef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/xokopezimosubevipemakixon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/fazesobezilewixonabugane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/38024204224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7087/files/lumbar_back_stretches.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4213/8262/files/introduction_to_calculus_volume_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6175/5560/files/61789854316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/sapokajomawilevabasamip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0252/3812/files/physical_science_grade_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/ribifumusu.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_off00006360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6360 5532 bytes
SHA-256: 56f119bf2f03aa9940e4f77e304fb1e9b1b27115ad7922ca6e3755e6ca03d93c
font_01_sfnt_off0000760f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760F 9548 bytes
SHA-256: 2a94fd08bc017e055cefa64101c3b2bc7445765d73f161266e1877f82bef0428

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