Malicious PDF — malware analysis report

Static analysis result for SHA-256 96b58273cd848954…

MALICIOUS

PDF

39.2 KB Created: 2020-08-20 05:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07f8ee0f26c8493a77fc89ac41163126 SHA-1: 6e37e35907c413ab3a90fe178ba7a9bf8e54b4a3 SHA-256: 96b58273cd8489544976079839e93c8537c67240cf5df054268e06d6e474d503
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, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=cheddars+restaurant+nutrition+information' which is flagged as malicious. The presence of numerous external PDF links suggests a link farm intended to distribute malicious content or engage in SEO poisoning. 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=cheddars+restaurant+nutrition+information In PDF document text
    • http://files.childwonders.com/uploads/1/3/0/7/130775398/a7c6c.pdfIn PDF document text
    • http://files.fiddleonthefarm.com/uploads/1/3/1/4/131408100/5296344.pdfIn PDF document text
    • http://files.bdtcentre.co.uk/uploads/1/3/1/6/131636814/318803.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/1/0435/6187/7665/files/98393256283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/87319361660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2496/6044/files/bangla_itihas_boi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9282/6528/files/94138666893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/fugovafojazawabite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/govopoketaripuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/80577663871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/61965524912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/moseju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rumifagekesodurelakalon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/xikozo.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 4

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_off00005c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C45 5020 bytes
SHA-256: 9dc9124d65b46305322139fdcde775d1c0b4754d312733746b2ff7420b4d061e
font_01_sfnt_off00006d2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2A 10220 bytes
SHA-256: d786b67f89fe54afbb30a302341698cf150040e7f3b10689efcb23f8aef48d54

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