Malicious PDF — malware analysis report

Static analysis result for SHA-256 15575a1d075e5be8…

MALICIOUS

PDF

44.6 KB Created: 2020-08-10 22:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4766412dbced828cb1251c08ab083d8 SHA-1: a7db66e3c6843fc8a0481feb613671ed61a7528f SHA-256: 15575a1d075e5be853428e49a3112475c185c1be26ef346a2967f26dc642fc1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external resources, many of which point to redirector infrastructure. The primary redirector URL, https://ttraff.com/pify?keyword=equilibrium+economics+pdf, is flagged as malicious. This suggests the document is part of a link farm or SEO manipulation scheme designed to lead users to malicious sites, likely for phishing or malware distribution.

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=equilibrium+economics+pdf In PDF document text
    • http://wogovedi.royalorderkingdomofpoland.org/uploads/1/3/1/4/131407406/675540.pdfIn PDF document text
    • http://files.plpseniors.com/uploads/1/3/1/4/131437312/tiwisopiwatopi_ledasapat_fakovivivelopeg_risuwazebeda.pdfIn PDF document text
    • http://files.ouhsdra.org/uploads/1/3/2/6/132695472/xivivonupozejut.pdfIn PDF document text
    • http://wapopunaz.acauseforcrafting.org/uploads/1/3/2/7/132710592/tisefupap.pdfIn PDF document text
    • http://files.doorcountycivilityproject.org/uploads/1/3/1/3/131379054/a992b.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/1/0429/2929/1427/files/29711131902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/hemoglobin_formation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/90319118199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/wederexag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/97971301923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5143/3627/files/zip_codes_murfreesboro_tn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9912/7959/files/40054572576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4798/5053/files/12911872749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/80921254175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1096/5147/files/98381164947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2513/6797/files/gre_analytical_reasoning_questions_with_answers.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_off000065e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E3 5316 bytes
SHA-256: b752f81113d344983a8c3c77741299f03757cf30584df81f97085e62e7cf5f5c
font_01_sfnt_off000077d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D2 14468 bytes
SHA-256: 39b4885fcf0c38dcda0de33b2823ad35a3b8303d08450a6f7d64fc5ba3c36bb1

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