Malicious PDF — malware analysis report

Static analysis result for SHA-256 75649546b771d465…

MALICIOUS

PDF

66.8 KB Created: 2020-09-28 21:18:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0361d0713b2e3982f53bebf8bd7bcf3a SHA-1: 86e1539ca9b49fd2eb04d6efd2a7ad5fa25169a0 SHA-256: 75649546b771d46517280cabd53b362b47f5431a21f3c72231e3699b90019ace
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics, suggesting an attempt to lead the user to malicious infrastructure. The presence of numerous PDF links also indicates a link farm or SEO manipulation tactic.

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://gettraff.ru/mozel?keyword=payment+of+gratuity+act+1972+pdf+in+tamil In PDF document text
    • http://kevaguvop.lilcameronwrites.com/uploads/1/3/0/9/130970004/galapa.pdfIn PDF document text
    • http://files.conniefay.com/uploads/1/3/2/6/132681362/zaxab_rijodanifenured_vosafekoz.pdfIn PDF document text
    • http://files.thefiveelementsretreats.co.uk/uploads/1/3/2/7/132740462/06cde4.pdfIn PDF document text
    • https://site-1037203.mozfiles.com/files/1037203/nebezezun.pdfIn PDF document text
    • https://site-1037204.mozfiles.com/files/1037204/10675929302.pdfIn PDF document text
    • https://site-1036661.mozfiles.com/files/1036661/31853868250.pdfIn PDF document text
    • https://site-1036633.mozfiles.com/files/1036633/gexujomelodoxu.pdfIn PDF document text
    • https://site-1037235.mozfiles.com/files/1037235/xezijuwekajurenoxoxinemig.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/1/0450/2857/3334/files/cadenas_alimentarias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/95693545198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/tobor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8054/8505/files/53760319705.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 8

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_off0000bca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA8 5820 bytes
SHA-256: c33d3b88433cd7960b975b28b63842f8421cabcad7d906a3e51edebefd07a750
font_01_sfnt_off0000d07a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07A 1936 bytes
SHA-256: a8ba320a0ac8a73a5a8cc2c47ba30bd151ec5f51af4d5ac0b9daf85eaa8f1301
font_02_sfnt_off0000d9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BF 10516 bytes
SHA-256: 3d5ecfd850b6ef160f6b23fb20df1af759407cb7524c9036f743a8d0700e2715

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