Malicious PDF — malware analysis report

Static analysis result for SHA-256 6389f04b5660ab47…

MALICIOUS

PDF

32.3 KB Created: 2020-08-08 05:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89fbc39a65c73000d397af5d86d6ada5 SHA-1: b9c496875385eacdcfedc0a0b6068772c00684d5 SHA-256: 6389f04b5660ab4796060bbec971ca6449f3c06b6da3c4cd7789f682372264c6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which redirect to malicious infrastructure. The primary redirector URL is https://ttraff.com/wb?keyword=resampling%20methods%20for%20dependent%20data%20lahiri%20pdf, which is flagged as malicious. The document appears to be a link farm designed to lure users to potentially harmful content, masquerading as academic resources. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=resampling%20methods%20for%20dependent%20data%20lahiri%20pdf In PDF document text
    • http://files.crmodelrepair.com/uploads/1/3/1/4/131406701/bekotobifomulezojoni.pdfIn PDF document text
    • http://files.catherinebliss.com/uploads/1/3/0/9/130969160/rekaloniw_tizapevurok.pdfIn PDF document text
    • http://files.skyleblanc.com/uploads/1/3/1/6/131637034/sabosutukitikusuwiw.pdfIn PDF document text
    • http://files.legaciesofsuccess.org/uploads/1/3/1/4/131453124/kikilizixom.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/1/0433/0687/7080/files/40948382406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/gapeduwanepojadewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/83314764884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4092/3048/files/programmatically_annotate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/30247868597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/how_to_search_a_scanned_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1809/0653/files/75288112029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/vunitujaxasusopujakodik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/44625148242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/32767879094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3094/3643/files/reforma_do_estado_e_administrao_publica_gerencial.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_off000044a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A0 5464 bytes
SHA-256: 76457ab36be20cd5a29c4c222ce3cafde87dc46b055acee0d5f4a57bfec7cba8
font_01_sfnt_off0000570a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x570A 8540 bytes
SHA-256: 8e62fe2eff72e55f56e5116d935f1b022ea4766542d57f91fee835d0ded651b4

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