Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b63572a90f322e…

MALICIOUS

PDF

53.1 KB Created: 2020-07-31 11:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfc328b060d22fbef831d77d5f0a4140 SHA-1: 337502ad51d0e4cbd2a3113a0be88aeddc7d9461 SHA-256: 35b63572a90f322ee1e83e5a6a6ae181a16b67243f627ad891f320fead78c203
194 Risk Score

Malware Insights

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

The PDF file contains numerous links to external resources, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'municipal solid waste management notes'. The presence of a large number of PDF links, many hosted on Shopify, indicates an attempt to create a link farm for SEO manipulation, likely to distribute malicious content or phish for information. The ML classifier also strongly flagged this PDF as malicious.

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=ce2020+municipal+solid+waste+management+notes+pdf In PDF document text
    • http://files.bslfourthward.com/uploads/1/3/0/7/130739163/purupafunevima.pdfIn PDF document text
    • http://files.cookingtogetherwithfriends.com/uploads/1/3/0/7/130775126/vapiwokiluw-wikalalurus-bepopufa-pikesanavizizi.pdfIn PDF document text
    • http://files.lawn-rite.com/uploads/1/3/1/0/131070579/xigan.pdfIn PDF document text
    • http://files.robpedley.co.uk/uploads/1/3/1/8/131856672/regejedeseweneji.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/1/0431/3012/6496/files/51086938482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/9931381522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3934/2248/files/vegosigibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2419/4468/files/gatovos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2606/files/74936833072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/regovezole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/92376217407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7964/7900/files/47344800585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4264/1832/files/45506046740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/10368390070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/30517424149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8781/4044/files/jifakigixitokotanakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/tojuxovunivapewiwikulet.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_off00008610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8610 5648 bytes
SHA-256: 967a2de989c07c609c039bb5d7cfd9d9d38b7e38d67e33cac7f96cbd2611e4c5
font_01_sfnt_off00009943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9943 15036 bytes
SHA-256: 5fae75ebdfc0d97a843013af84ecc3c167a6b8d16676b030d91553df76c8a6e4

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