Malicious PDF — malware analysis report

Static analysis result for SHA-256 d975b66214ba873f…

MALICIOUS

PDF

111.3 KB Created: 2020-08-08 01:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e529b065cd2370a400dcbd3dd91b52c SHA-1: 75eb4b49fe0a6d4128355e4653c1c7156c051269 SHA-256: d975b66214ba873fff98774555477b5a764032cc4ae187efabbb9d51cc9c5063
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a free PDF download, reinforcing the lure. The embedded URL is part of a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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=livro+after+1+pdf+gratis+completo In PDF document text
    • http://files.lebaneseamericanfestival.com/uploads/1/3/0/8/130814900/2033953.pdfIn PDF document text
    • http://files.cornerstonestrategies.net/uploads/1/3/1/6/131606465/telogewubogug.pdfIn PDF document text
    • http://files.okotokshcpharmacy.ca/uploads/1/3/0/7/130775728/6850934.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/1/0430/3778/6266/files/95216025294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/68154664024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3973/files/31669577477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/57517020068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/lotemupolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/64523242951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/likupeziwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6668/6629/files/tasaweragibukagudalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/tajilutojafizulovafowus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/40602614013.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_off00017aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17AA1 5528 bytes
SHA-256: 42fa5527b5a4ae5dc449dcef2b50f36f9f491218c7cf01eab3f4f858259dd54d
font_01_sfnt_off00018d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18D73 10108 bytes
SHA-256: 8426462285cbb53dda646d15733c23ac27a5281636289df5199fe4b0800f65db

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