Malicious PDF — malware analysis report

Static analysis result for SHA-256 421601132bbeb73c…

MALICIOUS

PDF

32.9 KB Created: 2020-08-18 23:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 212453b2623c4e74d6600344112a12a5 SHA-1: 39cb3565c3081795d842f2badc543a90476e717f SHA-256: 421601132bbeb73cbd50974b734bfcbf15497c9faad1277af39c81d4a8a7936a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised with a keyword related to popular media. The PDF also contains a large number of links to other PDFs hosted on various domains, indicating a link farm designed for SEO manipulation. The ML classifier strongly flagged this PDF as malicious. 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=bahubali+2+songs++tamil+masstamilan In PDF document text
    • http://files.jennamcfarlandlord.com/uploads/1/3/0/7/130739284/7730273.pdfIn PDF document text
    • http://files.floriaanwent.com/uploads/1/3/0/8/130814529/mogavodozapomexova.pdfIn PDF document text
    • http://files.gingerbreadhouseguelph.com/uploads/1/3/0/7/130775306/zilun.pdfIn PDF document text
    • http://files.runcibletheatre.org/uploads/1/3/0/8/130813923/pusulukod_roworivuveb.pdfIn PDF document text
    • http://files.tigerteammarketing.com/uploads/1/3/1/3/131380600/8a0e87e4156c15.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/1/0428/9835/8432/files/zemeletitofugawekabol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7930/6135/files/bunobipabisunesidapisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/nexejaxidis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/cateterismo_venoso_umbilical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/40612217260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/77205928661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3916/1500/files/boggle_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4549/4684/files/davarobakaril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/14987891765.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000444d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x444D 5324 bytes
SHA-256: c1f0f291f09dbea324302594ccc55324286ca4eefe841cd635527d21b44a6091
font_01_sfnt_off0000563b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x563B 9656 bytes
SHA-256: cb73dfecefcf980f86bf96fe755902e93f9bf8b101035d7415c468994fe299cf

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