Malicious PDF — malware analysis report

Static analysis result for SHA-256 0190c084027892f9…

MALICIOUS

PDF

42.3 KB Created: 2020-08-09 04:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9640e9e1e2067cc64813024a78027e84 SHA-1: 05ebf250134e41555815c275f2cf4b1687d08963 SHA-256: 0190c084027892f97502dd281e8f923546edb9e096256e7b476a24bbf2d291a1
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, masquerading as a free download for a 'data analysis book pdf'. This is a common phishing lure to trick users into visiting malicious infrastructure. The ML classifier strongly indicates maliciousness, and the heuristics point to redirector and link farm activity.

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=data+analysis+book+pdf In PDF document text
    • http://files.wicollaborative.org/uploads/1/3/1/4/131406510/4366142.pdfIn PDF document text
    • http://files.wingsofhopemankato.com/uploads/1/3/1/8/131871642/67edb0e.pdfIn PDF document text
    • http://files.remembering-the-past.com/uploads/1/3/1/4/131453465/bekaz-rilimu-pinanenutenofoz.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/1/0434/7471/4784/files/32542257482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1824/files/xamenoxolamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4160/files/biraseguwogekerime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/2825468711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8098/8325/files/60931199573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/gesibemogakaxab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2734/7109/files/82083464338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/86890199303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9839/files/dokuvagaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9469/4304/files/74286970487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2765/0970/files/accounting_rate_of_return_problems_and_solutions.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 6

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_off00006682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6682 5244 bytes
SHA-256: 5e954b1cacfff712259bb12084c8e52deab11cab00abdff956ce0e862eb4ffb2
font_01_sfnt_off0000787d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x787D 10760 bytes
SHA-256: e9aeef48fcf192f84e395af415087baa0c1c0000a5256fb1fa842d5bef5ad7dd

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