Malicious PDF — malware analysis report

Static analysis result for SHA-256 8432b7a773e113da…

MALICIOUS

PDF

38.0 KB Created: 2020-08-05 22:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be66c022906f1f0b6e7b93ebc903a1ab SHA-1: 86b25eed469f07d1542b0cd38026506cd657c8f6 SHA-256: 8432b7a773e113daeb859636cf3e2c474b7703cb11c6205239d6b79cb2695ae3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, disguised as a Wetherspoons menu. This indicates a phishing or scam attempt to lure users to a malicious site. The ML classifier strongly supports the malicious verdict.

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=wetherspoons+full+menu+pdf In PDF document text
    • http://files.centralfloridadressage.com/uploads/1/3/1/6/131606150/9584205.pdfIn PDF document text
    • http://files.maxeyshouse.com/uploads/1/3/0/8/130874189/e7dc9d8.pdfIn PDF document text
    • http://files.beasleydoodles.net/uploads/1/3/1/3/131398547/lasejofadezi.pdfIn PDF document text
    • http://files.nrchemistry.com/uploads/1/3/2/6/132681783/diloxevixofije_vusaxuletazez.pdfIn PDF document text
    • http://files.warbabycosmetics.com/uploads/1/3/0/7/130776599/rokototeto.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/1/0430/5672/6170/files/sjogren_syndrome_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/manatawike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/28083658265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/logosami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/rulidivijumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/bacterial_cell_membrane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/50250065564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9969/0910/files/78162646699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/fegokovisopigudifukew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suxuteregejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/voriwazikevamapaziru.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_off00005719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5719 5084 bytes
SHA-256: 23213b19943efcc420846b958c2222411c893a71f316b591e896e4b5676d0373
font_01_sfnt_off00006849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6849 10116 bytes
SHA-256: 1f83111a23309c6d8db2c78f864f9b87015189056bafde66807b921d1a5007f6

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