Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7d8965441631b4…

MALICIOUS

PDF

46.4 KB Created: 2020-08-16 13:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5499944224efde0223c09996475e95b5 SHA-1: 361de9139451d88d443cc888593bbf9258b68a4c SHA-256: 3e7d8965441631b4d7404534b93f36b067ff391845a79ed9035619517d314a59
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, including a critical finding of a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=rental+contract+house+template'. The document body, though heavily obfuscated, contains text related to a rental contract and the URL itself, suggesting a lure. The presence of numerous links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination or to spread malicious content. 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=rental+contract+house+template In PDF document text
    • http://nefefajun.bsr-project.org/uploads/1/3/1/4/131406717/3de1064fab250.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/1/0434/4276/5976/files/rigixexabapetirotidafov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/nadixovadasukivejepeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/wukelid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/20304527971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7872/8345/files/gatimeromepevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7430/6727/files/83125889566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1508/files/abdominal_tapping.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/15309478449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7363/3432/files/ripavuwevolaposofavotupin.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 1

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_off00007995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7995 5180 bytes
SHA-256: 67ab7ce51a2c8b8c2c0049a00c8ec1803213ee99a919090e93437e13765dfd59
font_01_sfnt_off00008b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B02 10052 bytes
SHA-256: 114efed0de3aefeadba7c17c0699372d2f5bff838254b1d22013d492ff231737

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