Malicious PDF — malware analysis report

Static analysis result for SHA-256 66921ce083f42434…

MALICIOUS

PDF

40.7 KB Created: 2020-08-11 08:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94ceb932bb1faf68be3d151d220380a6 SHA-1: a50f09a4f2bccc2cfccd1c2639087348cc6b1113 SHA-256: 66921ce083f424345d15467be11f31f207a50fb108e43384a1f67d8c4d58ca0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the URL https://ttraff.com/pify?keyword=sample+business+valuation+report+pdf. The document body and heuristics indicate a lure related to business valuation reports, likely intended to trick users into clicking the malicious link. The presence of numerous external PDF links and a critical redirector link firing strongly suggests a phishing or scam attempt.

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=sample+business+valuation+report+pdf In PDF document text
    • http://files.nolimitcombatives.com/uploads/1/3/0/8/130874361/tadikokufemaf.pdfIn PDF document text
    • http://files.gilescobaptist.org/uploads/1/3/1/1/131163620/2872859.pdfIn PDF document text
    • http://towiga.ysgolgwernymynydd.com/uploads/1/3/1/3/131383483/noxelapip.pdfIn PDF document text
    • http://files.pinecatsbaseballacademy.com/uploads/1/3/0/7/130775627/5134357.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/1/0431/6132/1634/files/kuguxolal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/les_collectivits_territoriales_en_70_fiches_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5700/5215/files/miralobojuwizasigubofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/botany_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3785/7691/files/getting_to_yes_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/kapitojiduvidawinesif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8000/6294/files/zusuzuvoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/suxubotuzanuwifevodowew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/baby_boy_names_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/telewelavovateb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3157/files/lagoxijuxufaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/vabibedewomudoj.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 3

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_off00005fbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBB 5492 bytes
SHA-256: 42b59adeab370e6630e6e1524942d5b2b6f6c718fd16eda850e0c4bb2bd58b79
font_01_sfnt_off0000724b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724B 10460 bytes
SHA-256: 181eaf6566a2c61603ff02a0002a789c76d77227d37d9aab6231a7f6d4457784

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