Malicious PDF — malware analysis report

Static analysis result for SHA-256 09fc7f03c493486e…

MALICIOUS

PDF

59.6 KB Created: 2020-07-30 13:48:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdd1325f93d44e1899c5582e570bc66f SHA-1: a0c84a8dd285a071f10391a3874234347dcb5fd2 SHA-256: 09fc7f03c493486eca17b98a92ad8f6d6c10e1e2503800580dd200bb9c6c92bd
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create a link farm, with a primary redirector pointing to 'https://ttraff.ru/pify?keyword=automata+theory+solutions+pdf'. The ML classifier strongly indicates maliciousness. The document body is heavily obfuscated, but the presence of embedded URLs and the heuristic firings suggest a phishing or malicious redirection scheme, likely intended to deliver a second-stage payload.

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=automata+theory+solutions+pdf In PDF document text
    • http://files.rotaryseymour.org/uploads/1/3/1/8/131872079/suwet.pdfIn PDF document text
    • http://files.australianboxingmemorabilia.com/uploads/1/3/1/4/131406658/galubimuw-bexezazegir.pdfIn PDF document text
    • http://files.cjhsmediacenter.com/uploads/1/3/1/3/131382239/sisemat.pdfIn PDF document text
    • http://files.akyeraalexiphotography.com/uploads/1/3/2/3/132302924/dowukuforadino.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/1/0428/9835/8432/files/jedufejaselikaruratemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/26372720076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6414/7609/files/mogajarakadodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2141/7122/files/75516513105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/kizuxedubiwazuzawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4354/3450/files/kirusebemapavakabavupam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4125/9671/files/zilakaseva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2288/3735/files/7191462517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/kirapisotorumomokekuram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3208/3612/files/kugaziwuvitejukafitimowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/dimefawivenolofukagep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/16929889545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/16268199145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/kimopolonifotomo.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 5

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_off0000a16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA16C 5252 bytes
SHA-256: a4f32c84c0a75248a899816a8fc24a98fcee8e5a4e0dc495b1f522e8bc0cdaf7
font_01_sfnt_off0000b323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB323 14628 bytes
SHA-256: fe607fa10fb8f055d94a53c62133839ff5242d49432184450a929466e0cdf119

Open this report in the interactive analyzer, or submit your own file for analysis.