Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f9348ffa9ebecb…

MALICIOUS

PDF

42.5 KB Created: 2020-08-12 19:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 252d355528a5e7f0eaaaf714c31f128c SHA-1: 5194ab865849d71b95dd82c2d708c47aa80b2292 SHA-256: d4f9348ffa9ebecbbf19751f748e7a498b37368fc31dce5b45c9281e6ee382fc
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though partially corrupted, contains the same malicious URL. The primary attack pattern involves luring the user to a malicious site via a deceptive link within the PDF.

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=articulos+de+placa+dentobacteriana+pdf In PDF document text
    • http://files.fresnomarriagecounselor.com/uploads/1/3/2/6/132682585/wupegezugakili_dozewasijewobi.pdfIn PDF document text
    • http://files.seattleanesthesia.net/uploads/1/3/1/6/131606674/6588803c.pdfIn PDF document text
    • http://wisebez.atmdye.com/uploads/1/3/1/3/131384240/taxetizur_sopesatuzu_nikubutowuvar.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/1/0430/8133/4951/files/25540482937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7739/0756/files/mulopofaginapemupopesid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7441/0910/files/runuwifasozesewonavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/chemistry_book_class_11_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/12107878127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2589/0466/files/72437588014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/rebel_yell_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4570/files/tovawef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4962/1416/files/algorithm_design_manual_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7161/8723/files/29281619044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6650/7943/files/jifuwiwozanumatizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/16092260862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1527/2605/files/72844052736.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 2

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_off00006584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6584 5276 bytes
SHA-256: 48cf231494067968c983e0801d00c36ad3772ca706dc11ee42d62fe2c11e9790
font_01_sfnt_off00007779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7779 11048 bytes
SHA-256: 89854659a2f99afe5486a2faece8dc2dc158889d9189686a9f6d552fcd626399

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