Malicious PDF — malware analysis report

Static analysis result for SHA-256 d42cc55c1652917b…

MALICIOUS

PDF

40.1 KB Created: 2020-08-14 10:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7371706b789b901ca0a2fbaf2285e44f SHA-1: 48dbb255ea7e487894d187b05678b1706a825f63 SHA-256: d42cc55c1652917bb97097a902b0cd5a4a8f42a7f28448426fe52d9827b37f86
194 Risk Score

Malware Insights

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

The PDF contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also contains a PDF_SEO_LINK_FARM heuristic, suggesting it is part of a larger link farm designed to manipulate search engine results. The document body and embedded links, including the primary malicious URL https://ttraff.com/pify?keyword=easy+family+worksheet+esl, support the attack pattern of luring users via a deceptive pretext. 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.com/pify?keyword=easy+family+worksheet+esl In PDF document text
    • http://gowuxasa.suisunvalleyfillingstation.com/uploads/1/3/1/4/131483830/wejibugare.pdfIn PDF document text
    • http://bilirer.cindysasso.com/uploads/1/3/1/4/131407552/2650325.pdfIn PDF document text
    • http://files.themerchantsguildstore.com/uploads/1/3/1/4/131407493/98730559d3.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/1/0432/1558/5448/files/52159956332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/90891761877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7739/2791/files/933589157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5508/6742/files/16170533508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/78887081937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0138/6920/files/65800409409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/xinerupom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/82411185255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0257/4494/files/12796357640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/noxegudotizixojuluwate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/bevosuniwibuteduratoruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5636/files/kesemoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90841244024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/66096833129.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_off0000607d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607D 5224 bytes
SHA-256: cc134bbe72d3baf7acc99f3ee696bf7f053e6ff0cde322fa56fe97b8425bf51e
font_01_sfnt_off00007235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7235 9740 bytes
SHA-256: 30487bac4ac741dcc22bd8712518549f6e4fc6741a163c426b63494db8bfd32a

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