Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee0bbd5135d2997…

MALICIOUS

PDF

47.4 KB Created: 2020-08-05 15:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae3d4878ca9fc60d843fecb586d3d6c1 SHA-1: 20cae775e4791a7ddba97f2407906e19f0d48397 SHA-256: 8ee0bbd5135d29976877227bb7a265c74a712b16e78b42b24dd9ca284870d610
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting a lure for users to click on a link disguised as a physiotherapy treatment PDF. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=carpal+tunnel+syndrome+physiotherapy+treatment+pdf In PDF document text
    • http://files.ccevenice.com/uploads/1/3/1/0/131070291/ccf226.pdfIn PDF document text
    • http://files.lyndalriley.com/uploads/1/3/1/6/131637498/8167253.pdfIn PDF document text
    • http://files.friendsofrothrock.org/uploads/1/3/1/8/131871864/cf04d2044508829.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/1/0430/9316/4199/files/wofuvekosotokewifavafilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2608/7064/files/luvakupavesulujokenol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/ginanim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5301/4423/files/borulamutilabonunuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/64188605722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/46633727128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4449/4760/files/leadership_styles_journal_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/vujagukavamowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/57680709238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/inorganic_growth_strategy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/87431281752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/tewizisijoparalunovafidex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/4048616869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/zozifi.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_off00007b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B97 5288 bytes
SHA-256: b834f8f4ff66498fee629c99299eddf04f55937d1667b09a631a2311c1e37a8f
font_01_sfnt_off00008d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6A 10088 bytes
SHA-256: 83a0df7f83abf12d044baed958dc6b124610e32ec101264c73248b003c76b7de

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