Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c786654351ac67c…

MALICIOUS

PDF

42.9 KB Created: 2020-08-19 02:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2e61dddd9bf070acd7e5bc8e2e1067a SHA-1: 56004b1e48a762a1b89f804a33475d59893955ba SHA-256: 5c786654351ac67c2f72426ced1ad39689986e1a048358f2e17add01b0787e5b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying it as a PDF SEO link farm. One prominent link, 'https://ttraff.ru/pify?keyword=kartoos+anthem+new+song', is flagged as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for phishing or malware delivery, masquerading as legitimate content.

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=kartoos+anthem+new+song In PDF document text
    • http://files.biglakeelementary.com/uploads/1/3/1/8/131856632/bopexuselo.pdfIn PDF document text
    • http://files.diccklann.com/uploads/1/3/1/4/131407042/1407674.pdfIn PDF document text
    • http://files.dustyroadhorses.com/uploads/1/3/1/4/131453725/kafovovolapufusix.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/1/0428/1873/2191/files/adaptis_gel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1698/5503/files/58397011769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1770/files/eu4_world_conquest_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/kilozavidovisudadimeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7554/6791/files/bteb_result_2020_6th_semester_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/autophagy_fasting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/17243019772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/nababe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3419/7666/files/dofiler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/93449548861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2920/6939/files/rujadipada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/tologaremitenopugutar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/lubavopepetulafujisijana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/fawexipab.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 4

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_off00006937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6937 5128 bytes
SHA-256: bf2bfc7a30ac1d2439f06ab6341499bb329a507ebf98151a67a74e3aecffd65e
font_01_sfnt_off00007a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A96 10592 bytes
SHA-256: fe5aaa36736b866fa1b2c7ce7ca6f1e3265ae275a8e158f404b4222a78ab576e

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