Malicious PDF — malware analysis report

Static analysis result for SHA-256 8592405e5dfbc0b7…

MALICIOUS

PDF

38.2 KB Created: 2020-08-14 20:54:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ed07be99812c36e6eb09509c7e6a4af SHA-1: b77462503b43d55609506f5cfe0799d216156281 SHA-256: 8592405e5dfbc0b7cee89063cb953b8e612883176c73db0ac7c9d23bbdf81f79
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious content. The document body and heuristics indicate a lure related to 'self certification note pdf', suggesting a phishing or social engineering attempt. The presence of numerous external PDF links, many pointing to Shopify, further supports the idea of a link farm or distribution mechanism for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.cc/pify?keyword=self+certification+note+pdf In PDF document text
    • http://didozuvor.tajpalacelouisville.com/uploads/1/3/1/4/131406437/kagifanibowiw.pdfIn PDF document text
    • http://files.utrgvalpfa.org/uploads/1/3/0/7/130775529/vuzeluk.pdfIn PDF document text
    • http://files.juniortravelers.com/uploads/1/3/2/7/132740982/4241228.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/1/0428/9386/9212/files/pikuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5745/files/67237381637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87743453122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0371/5481/files/aviones_de_papel_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5047/files/99569829072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/curl_set_content_type.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4827/1014/files/coca_cola_font_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/bluebook_capitalization_rules.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0429/1274/3580/files/80318188455.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
    • https://cdn.shopify.com/s/files/1/In macro / runtime command snippet
    • 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_off00005917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5917 5072 bytes
SHA-256: 37a65ba12ec240408fa7576a1417485e368130076e896e98953c0ee6f7d52a4e
font_01_sfnt_off00006a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A59 9912 bytes
SHA-256: 2b30b0575b5039e9c27d5d3b686a320e8de0befb99a4930672f27dd557238af0

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