Malicious PDF — malware analysis report

Static analysis result for SHA-256 1609c005b0e98285…

MALICIOUS

PDF

37.0 KB Created: 2020-08-18 15:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b913f43ae088b6b42af05b2a5ded5893 SHA-1: 15c77e0fab301790fa68207d89dda0e8a4e970b3 SHA-256: 1609c005b0e98285bd5fdae969072865ffec97eb6eb502a7092a74fcec6d3eb4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The primary malicious URL, https://ttraff.ru/pify?keyword=poovarasan+kattikidalam+video+song, is used in conjunction with a lure that appears to be a video song title. This suggests a phishing or content-piracy lure to drive traffic to malicious infrastructure. The presence of numerous Shopify links, while mostly benign, contributes to the SEO link farm tactic.

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=poovarasan+kattikidalam+video+song In PDF document text
    • http://files.vinegardenmarket.com/uploads/1/3/1/4/131483097/nopukokone-nofotine-sutozamiponaju-bejepewasibo.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/1/0431/5866/7415/files/export_as_illustrator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43181801848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/warhammer_40k_8th_edition_faq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/consolidated_report_meaning_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/topajujerabakivabidaxidix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/13557630468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6312/2843/files/xumigonedavukesibif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9010/files/bisiguxutevoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4043/9446/files/23019531268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1307/0238/files/93965255444.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 1

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_off00004b15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B15 5268 bytes
SHA-256: c39e083b31779dae0ee6b7d0bb5c2b7ff9b700790c48e2675cf875620f3dda33
font_01_sfnt_off00005cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEF 13976 bytes
SHA-256: 992306f7328cec8b0ff8e148548ec86de924c193c07e9caee63689f6feb74aa4

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