Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdea7e6cf321ed8f…

MALICIOUS

PDF

41.8 KB Created: 2020-08-08 09:46:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e2b13ff87c84070a106d781e528b085 SHA-1: 8d7c8ad78f723a6db5f77dda4597fab14a5c0f2d SHA-256: fdea7e6cf321ed8f21358d9678da4d18ff9567c254ad4631579ea237b6221af7
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=amplificateur+diff%25C3%25A9rentiel+cours+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a lure to download further content or redirect to malicious sites. 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.ru/pify?keyword=amplificateur+diff%25C3%25A9rentiel+cours+pdf In PDF document text
    • http://files.caworkingdog.org/uploads/1/3/1/3/131380848/fobosi-bofakumutafot.pdfIn PDF document text
    • http://vomojipo.intheam.shop/uploads/1/3/1/6/131607029/wabaxig-fagut.pdfIn PDF document text
    • http://files.woodyshticks.com/uploads/1/3/1/3/131379612/ritozo_luwubuvilul_bizifodoli.pdfIn PDF document text
    • http://files.ecosphererestorationinstitute.org/uploads/1/3/0/7/130776295/sumamerako.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/1/0431/5981/4306/files/wafol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/24726254882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/kakijejorarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/65076038267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9148/5091/files/72667171235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/6905734146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4399/3238/files/1657763704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3549/2503/files/30571079915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5961/8716/files/coreldraw_graphic_design_tutorials.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 8

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_off0000636c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636C 5432 bytes
SHA-256: 196bc4d22021f183256ae8585717bde094ae13c1fe797c00e18ba3dc8087e9f5
font_01_sfnt_off00007591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7591 10812 bytes
SHA-256: 264c868e1d719a5a41d0e9a917fcb2721cadf3ab11b02f4fbd695a19ff95b17a

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