Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b0ef92eb4eed15…

MALICIOUS

PDF

39.9 KB Created: 2020-08-04 04:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dbdee411bc6beb2c4f0f41cea81ff8c3 SHA-1: 405b2c9135c0fb8ecc58ccc6cd29573a3ada8e93 SHA-256: 92b0ef92eb4eed155dd7f6ed39f6d46715c4b319317105f8fa6426883c1de49f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=rubric+assessment+examples+pdf'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The presence of numerous other PDF links, many hosted on shopify.com, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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=rubric+assessment+examples+pdf In PDF document text
    • http://files.josephineanimates.com/uploads/1/3/0/8/130874328/mozakaxuponasib.pdfIn PDF document text
    • http://files.elizasmuel.greatwebsitebuilder.com/uploads/1/3/2/6/132681985/xadedivifata_fiwok_werej_moretaruromisi.pdfIn PDF document text
    • http://files.theroguecherry.com/uploads/1/3/1/6/131606206/328951.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/1/0432/1175/1588/files/85819376103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/50821909711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/60495438555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1472/2460/files/script_writing_format_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/96302380895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/bebevivilibepikokuvomiwig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/tisezox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/load_json_file_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2629/8533/files/tapply_function_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/benizejiwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/93113786348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/jonurufitov.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 2

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_off00005f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F03 5516 bytes
SHA-256: c64606d8b9ab1448138804e6e596c647b56ec33ea1b507d50aa8d0d6caa82b69
font_01_sfnt_off000071b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B1 9684 bytes
SHA-256: 9bef9cc58bd5183de3004d64acf8260ea66a917dcfe851e5902f35a64cf15d70

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