Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c65c88980036071…

MALICIOUS

PDF

44.6 KB Created: 2020-08-12 01:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9dc9d2fc84e241567e202545c67daa9 SHA-1: 06de1effac70aa5ff97089af01c0f587df57d0ac SHA-256: 8c65c88980036071c7ea4d651e71cbce78bdac2bc1798e20571a45c7c2813d7a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Anne of Green Gables cookbook pdf', suggesting a lure to trick users into clicking the malicious link. The presence of numerous SEO-optimized PDF links further indicates a link farm or redirection scheme designed to obscure the ultimate destination.

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.ru/pify?keyword=anne+of+green+gables+cookbook+pdf In PDF document text
    • http://tedigasi.rigonibakery.com/uploads/1/3/1/3/131380212/4866978.pdfIn PDF document text
    • http://valipotak.gotnlc.com/uploads/1/3/1/4/131437987/4638adf5.pdfIn PDF document text
    • http://files.morningsideunitedchurch.org/uploads/1/3/0/7/130738554/fovikigojeraj.pdfIn PDF document text
    • http://files.bellesandbroomsticks.com/uploads/1/3/0/7/130739232/walalaseboretu-guxebizizubopuv.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/1/0433/9564/5589/files/devadawujogujofejax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/weathering_definition_geography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/35274313467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4484/7266/files/zelufazabut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3762/9348/files/nafigowumapuwapopafanij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7757/3535/files/23340144438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/burot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1304/4386/files/cellular_respiration_and_photosynthesis_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1613/1484/files/18665981522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6254/1982/files/39567696629.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 6

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_off000062a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A7 5516 bytes
SHA-256: e5bf82017479f39b60652b1229b0a19f43164ec6a51d50f47d301f3e1589294e
font_01_sfnt_off00007575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7575 15536 bytes
SHA-256: ff563fef86c1c91bb0e95f2fb8dec89d4dc20910223fa6fbe730f9b31b52e9d1

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