Malicious PDF — malware analysis report

Static analysis result for SHA-256 963b02ab11b6bb26…

MALICIOUS

PDF

41.4 KB Created: 2020-08-18 16:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7181124a91b2dfa39a69abb28eba9cd0 SHA-1: 0d767622810fe1f54b0e1ad2648ff1bbd6dd6757 SHA-256: 963b02ab11b6bb26cbafd4ee5148e036fafaa460acfa9a11c6b951dfd39d269d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL https://ttraff.ru/pify?keyword=baby+couple+pic+free is the primary indicator of this malicious redirection. The file also exhibits characteristics of a PDF link farm, with numerous links pointing to external PDFs, likely for SEO manipulation or to obscure the malicious redirector.

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=baby+couple+pic+free In PDF document text
    • http://lowotupup.lifestylejewellery.com/uploads/1/3/0/7/130776326/bukulino_fixaludaf_fikebota.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/1/0428/9242/7430/files/canine_parvovirus_pada_anjing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/zuziragumijikotugup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8468/3166/files/wefedebapebeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1595/4847/files/xizidigubeketibesul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/rosumojeboba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/tupotomorilafebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/bozavetepirafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/34417892470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4647/7725/files/pebowusuraga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/jugabidokivafolara.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: speedwaysginc.com 3 samples

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50EC 5124 bytes
SHA-256: 979d8c55da3ae5b6e938b844fbcfb883ba0f02ee1a3c191e432d35e119bb55a9
font_01_sfnt_off00006265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6265 9732 bytes
SHA-256: 9f9e5fb2d02851d8f4fb127d7a855d5b5e3e981b9769cba582695c98f117070f
font_02_sfnt_off000083ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EA 16128 bytes
SHA-256: 8c08a5ca30f7191253832396cd0e16b2863be47a0d76434bcfaca3abab847f9b

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