Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c34bf0e1ae72c03…

MALICIOUS

PDF

41.6 KB Created: 2020-08-09 12:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5d14f1680fba7223fa5557661acc6a9 SHA-1: 2da8d26426958c929a6dbb85311d54746c449e34 SHA-256: 7c34bf0e1ae72c03536e4c5ec6b4b248f4c118dcb889d1b8df9e5e7bf83f5b0e
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body and embedded links suggest a lure for study material, likely a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs supports the attack pattern.

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=apics+cscp+study+material+2020+pdf In PDF document text
    • http://xoridimak.ddxdesign.com/uploads/1/3/1/8/131857920/resuvekigudidu-suzezofasamek-lagimej.pdfIn PDF document text
    • http://files.joedyton.com/uploads/1/3/0/7/130739593/vavoxikubixolipubego.pdfIn PDF document text
    • http://files.seminolecemeteryassociation.com/uploads/1/3/1/1/131164402/dosoniketuxeb-goliwobukuxosas-xegak.pdfIn PDF document text
    • http://files.thedollhousellc.com/uploads/1/3/2/8/132816042/85ceb18707.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/1/0435/5696/2465/files/moving_average_numpy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4337/2699/files/trivium_ember_to_inferno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/serazazidiribi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/luzil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8518/5702/files/xotelilofegazutigaramijaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/55243983671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/50370689146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/23583818308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/cumulative_distribution_function_for_discrete_random_variables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/96957127524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5545/6149/files/rust_server_hosting_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/zebaluralitekopunugezita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.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_off00006403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 5668 bytes
SHA-256: bf2cdcec517d3205680c51031c2865633bb400ab5e78e50365c69da0225fcc65
font_01_sfnt_off0000773b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773B 10148 bytes
SHA-256: 19d86761126bf58c9adcc1f873459e59e141c49420a3209a39b18931fc822da9

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