Malicious PDF — malware analysis report

Static analysis result for SHA-256 449cf92100bd0710…

MALICIOUS

PDF

51.8 KB Created: 2020-08-18 16:13:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0580671cb03a9bba958bd1b8a7cd8167 SHA-1: 33c094eb532ab90a7ba99299e61e2908270c3cfa SHA-256: 449cf92100bd0710d738b4c046289ba2ff11402a78a130db508378eacf372004
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in Systems

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm. The primary malicious URL identified is ttraff.com, which is known to host redirector infrastructure. While the document body contains garbled text, the presence of the malicious URL and the link farm heuristic strongly indicate an attempt to direct users to harmful 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.com/pify?keyword=23+ideas+de+navidad+2019+manualidades In PDF document text
    • http://files.martinisdigz.com/uploads/1/3/1/4/131437508/bavagul.pdfIn PDF document text
    • http://xakaledos.dorsettrailtourismassociation.com/uploads/1/3/0/7/130776485/vuzufedumezixifim.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/1/0428/7637/1110/files/jonagejubokuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/final_year_projects_for_electronics_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/5355376297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7764/5974/files/creative_brochure_designs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9175/4149/files/puruwujitovavom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/mesefifevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/lijagejokawelifavumop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/tudunofod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2204/0731/files/general_affidavit_template_ontario.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000740c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740C 5488 bytes
SHA-256: 21eea0461fd5ac1475f88eabdfeebede70f7dd9c6d179925a6eb544ae9b80a34
font_01_sfnt_off0000869a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869A 11412 bytes
SHA-256: d613ffca8bd9ab5d6133b36eac9cd8397dab18e8505d4c71035bf8a9248b5aab
font_02_sfnt_off0000abd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABD9 16080 bytes
SHA-256: d36da4fd2ab8c4dd3ac6c046b788d156341ebfd1121c5e6b8b5107a79d777502

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