Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3b885346967347…

MALICIOUS

PDF

36.0 KB Created: 2020-09-12 19:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 023a2849cced1968f25d74146849ee6d SHA-1: f1def12b2ba3011804ce960c4abba76c5b63ab94 SHA-256: 7d3b8853469673477b379704ec261a88f0874c4aa6b2ec6074aa06392f59b1b5
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though obfuscated, contains text suggesting a lure for a 'Nintendo wii manual uk', and the heuristics confirm it's a malicious redirector and part of a link farm. The primary attack pattern involves tricking the user into clicking these malicious links, likely leading to further malware downloads or phishing attempts.

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.cc/pify?keyword=nintendo+wii+manual+uk In PDF document text
    • http://files.crudeoilcalendars.com/uploads/1/3/1/6/131606642/karezibonuw.pdfIn PDF document text
    • http://files.3dotdash.com/uploads/1/3/0/7/130775607/4928734.pdfIn PDF document text
    • http://files.baguiosoundsrental.com/uploads/1/3/1/4/131482952/vaxijinuxopojaxele.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/911c12_f49877411e054feb8b993439b159d7fe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/338562_997a982cd70048cea0e57f86617b4d7c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4ae4db_0c455177de96484ab2f65a34010c9bb8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_610bb65e555444e9b01fc274d07c311d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/217d68_3112e8bd7cd24b11a711ce972dddfdc7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/characteristics_of_romanticism_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4715/6903/files/fitgirlsguide_28_day_jumpstart_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/pilanamobadewilekeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5432/files/ampicilina_sulbactam_bula.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_off000048a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A0 4824 bytes
SHA-256: 27240e36a160c810fbc6856c1d40bc99fc0eabbdde756c50ba52d967890f65bc
font_01_sfnt_off00005907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5907 13912 bytes
SHA-256: 9020ac387da588fb557bead5757a276737df76e0fb43a3e83b6268329d0b3a2a

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