Malicious PDF — malware analysis report

Static analysis result for SHA-256 7328e50dcf528f42…

MALICIOUS

PDF

40.4 KB Created: 2020-08-06 09:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c21f8b3619b6acf59165b6c68e75f727 SHA-1: eeb7dfeb929c0650304ec62c862038bc2dbf77dc SHA-256: 7328e50dcf528f42970dc5a43f82536db988c327a997e3b155651eeea9e12cba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is characteristic of an SEO link farm. The primary malicious indicator is a link to 'ttraff.ru', identified as a malicious redirector. This suggests the document is designed to funnel users through a chain of redirects, likely leading to a phishing page or malware download. No scripts were extracted, and the document body was heavily obfuscated.

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=cantaloupe+island+drums+pdf In PDF document text
    • http://files.crossfit-galveston.com/uploads/1/3/1/8/131872238/xogururu.pdfIn PDF document text
    • http://files.taurimufarm.net/uploads/1/3/1/4/131437980/270001.pdfIn PDF document text
    • http://files.themistressclaudia.com/uploads/1/3/1/0/131069819/mivabovax-wipuzilowogibub.pdfIn PDF document text
    • http://files.teresamagana.com/uploads/1/3/1/3/131381480/0335183a6bd.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/1/0433/0687/7080/files/62856854762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7758/0453/files/lisa_kleypas_hathaway_series_epub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2054/files/cub_cadet_xt1_46_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/19950977897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/bsf_recruitment_2020_notification_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4412/3303/files/sq11_mini_camera_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/62435188954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9041/6550/files/article_about_english_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2499/7800/files/27945571243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/jigizen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9338/4599/files/72560095586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/letelagatedelususudo.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 7

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_off000060d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 5092 bytes
SHA-256: 80191d07a7b0f46b5080216b0bf7b3e486b060c51b65a3635146e5aeb4d0d45b
font_01_sfnt_off00007205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7205 10188 bytes
SHA-256: 6055950026f69ed0266b031269d687ebfe11de35521ec51f51802ad0a50e0c2a

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