Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6cfcc7f258d887…

MALICIOUS

PDF

44.8 KB Created: 2020-08-07 23:10:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80c7ddfc9e8073c0fe75d2eb3547bdfe SHA-1: 13405f066f56298b6d6be6b52db9eb06574ffa05 SHA-256: fe6cfcc7f258d887e842ac2432ecfd47d0132dc5dbac73e0dd2e9dc1673c9d52
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms or redirectors. The primary malicious link identified is https://ttraff.ru/pify?keyword=types+of+shallow+foundation+in+civil+engineering+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to academic topics and the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent of the embedded links.

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=types+of+shallow+foundation+in+civil+engineering+pdf In PDF document text
    • http://buniz.missiedphotography.com/uploads/1/3/1/4/131408100/nuronepatonexixivub.pdfIn PDF document text
    • http://files.reasawmills.com/uploads/1/3/1/8/131857631/suwukumij.pdfIn PDF document text
    • http://files.simoncdrew.com/uploads/1/3/1/4/131407135/binedonedojoduvapiw.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/1/0427/9386/1279/files/tfs_power_tools_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/mananuliseze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/4694323588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/monasejifunerojerivem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/kexazugexeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4212/7527/files/17997171314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6686/7362/files/sql_server_2020_alwayson_availability_groups_step_by_step.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8157/3279/files/93392246610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/metiliwetizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/ridugok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/nilaxefawupepejepes.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 7

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_off0000708c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 5620 bytes
SHA-256: 39ddccdd7422d547518293dde5531f9b3dec45a06a84275f27ad36ad6890a36b
font_01_sfnt_off000083cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83CF 10188 bytes
SHA-256: 22d334d5dc6d490934b8c7f1f3712b7f56605702a9f33b1050fb9072a91e87f9

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