Malicious PDF — malware analysis report

Static analysis result for SHA-256 4136eeb4f49f5057…

MALICIOUS

PDF

41.3 KB Created: 2020-08-16 00:59:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 695c0683a529f7c9abf7fb20c482e8c5 SHA-1: 28cb17439418964da617d70a6382da4e01cc71de SHA-256: 4136eeb4f49f505771ae6cc2eb331893c476f703d8c14aaa253a3da1f826375f
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 ttraff.com. The document body also contains text related to converting PDF to DOCX and includes the same malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed for SEO manipulation to attract unsuspecting users.

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/wb?keyword=convertir%20pdf%20en%20docx%20gratuit%20en%20ligne In PDF document text
    • http://files.jerseyguidedtours.net/uploads/1/3/1/3/131382092/7825424.pdfIn PDF document text
    • http://sazoti.sweeteststills.com/uploads/1/3/0/8/130814297/4ec11.pdfIn PDF document text
    • http://files.samanthaamatoportfolio.com/uploads/1/3/0/7/130738792/ff795e7197291.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4071/7472/files/wuxevodopukowufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/nizudes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/mofuvibovapatutuxidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2751/0934/files/7676330352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/jibedap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/fafedunolixuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4127/5547/files/arkham_horror_card_game_rules_reference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/origin_and_development_of_buddhism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1713/2456/files/1931716622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1828/8285/files/75718433997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/11020384673.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5347 5176 bytes
SHA-256: e9a0c0d3a8990892280dd344e6221bce475b98af6d87f0392c6bc6750be7efbd
font_01_sfnt_off000064ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FF 11004 bytes
SHA-256: 673538b78414329cff15c16f216ec6b68753403f7c9db17996866bfb23c7135d
font_02_sfnt_off0000888d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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