Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f43a05e6dc6816e…

MALICIOUS

PDF

40.5 KB Created: 2020-08-09 23:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a1538dfe1601474a77ba8c7aae82202 SHA-1: 6ba72229dc266775b8f28064144680ed4f8bb12c SHA-256: 6f43a05e6dc6816e4e9096bfa4f06f6e117cb9ff44b25615781188c164b78dd4
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, with a primary link redirecting to malicious infrastructure. The document body text, though heavily obfuscated, contains keywords related to financial statements and URLs, suggesting a phishing or scam attempt. The presence of numerous links to external PDF files, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=personal+financial+statement+template+pdf In PDF document text
    • http://files.poplarbluffdancestudio.com/uploads/1/3/1/4/131406036/buvugugiz_zugotap.pdfIn PDF document text
    • http://files.aitcbroome.org/uploads/1/3/2/6/132681426/5436010.pdfIn PDF document text
    • http://radabe.cyprusmediacenter.org/uploads/1/3/2/6/132683014/7e9d2e04a7.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/1/0430/1458/6521/files/short_rest_dnd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/68296725111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/vufirusujisexadodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8132/5987/files/berojatatirepaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2830/6341/files/71702948250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/tubuxisitelusudibudutido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8972/1496/files/reliability_theory_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sovonuvebapade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/16188735947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/zalikosuwonag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/114378906.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_off00006062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6062 5300 bytes
SHA-256: eeeca00787cea9157d9f793619dd3a64a20ef42416caa0d7b1a1afcf384e59ff
font_01_sfnt_off00007253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7253 10176 bytes
SHA-256: 53fcfd08f242677a15a3d3f50c1444eea82313e5c80712489d2a0ae081d56337

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