Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e1414f534a47a7…

MALICIOUS

PDF

36.3 KB Created: 2020-08-18 16:11:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbe59eed58b5a8c7f7c0c6d38864ed89 SHA-1: a8e8bfacf01e12ffb45f634f0fb4efdaeb298d67 SHA-256: 99e1414f534a47a746b0588bd135c51890e5b6a7668c54e41b1ccb53637d57c5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged by a machine learning classifier as malicious. It contains a significant number of embedded links, with the primary link pointing to a redirector service (ttraff.com) that obscures the ultimate destination. The document also exhibits characteristics of a link farm, with many URLs pointing to PDF files hosted on various domains, including multiple Shopify subdomains. The presence of the redirector and the sheer volume of outbound links suggest an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=negative+exponents+worksheet+8th+grade In PDF document text
    • http://files.baileyroper.com/uploads/1/3/0/8/130815009/vatifuwifenavit_malagawog_xovapob.pdfIn PDF document text
    • http://files.promise1000.org/uploads/1/3/1/8/131856290/vusigokuz-bedunosufelija.pdfIn PDF document text
    • http://files.etherealsanctuary.co.uk/uploads/1/3/0/7/130775197/3734833.pdfIn PDF document text
    • http://files.psychic-eryn.co.uk/uploads/1/3/1/0/131071056/topibidagagebip.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/1/0428/0333/1231/files/jirepunexakonosogevomixuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7300/1889/files/autocad_converter_to_dwg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8876/5337/files/libro_aura_carlos_fuentes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/55103962609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/8971744287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/45727399901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1966/4540/files/81083523836.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_off00004e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E39 5636 bytes
SHA-256: 0e3bf7ecabe1fda2e9877a9c01af46e1f9201e21cd6ae36bfc4324ececfa7143
font_01_sfnt_off0000617d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 10244 bytes
SHA-256: 96ba64ea6ebb22f693f73cc7edda62a4fc86db29af10e5fd05610edd87885807

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