Malicious PDF — malware analysis report

Static analysis result for SHA-256 b06d26be81aaa981…

MALICIOUS

PDF

34.2 KB Created: 2020-08-10 14:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae0997e2d2b8057c777b3cf07eaa1791 SHA-1: 5ed63521311932049af09044f99dfc9b489e224f SHA-256: b06d26be81aaa9814dac6f0122a351cf5214b6adcd398a65e53dfcda0d30b2f3
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources hosted on platforms like Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=caldeira+industrial+pdf', is identified as a malicious redirector. This suggests the document's purpose is to lure users into clicking these links, potentially leading them to malicious websites or further stages of an attack. The ML classifier also strongly indicated maliciousness.

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=caldeira+industrial+pdf In PDF document text
    • http://files.vintagewoodworkingtools.net/uploads/1/3/0/7/130740625/siwisap-sawew-vepuro.pdfIn PDF document text
    • http://files.manifoldwisdom.org/uploads/1/3/0/7/130775952/3842709.pdfIn PDF document text
    • http://files.stacylhenstridge.com/uploads/1/3/0/7/130775498/07c0d6029568.pdfIn PDF document text
    • http://jedil.westgatechildcenter.com/uploads/1/3/2/3/132302978/1538562.pdfIn PDF document text
    • http://files.xyzns.org/uploads/1/3/1/4/131437859/5432665.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/1/0439/6387/5486/files/zibexusozojagarixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6566/1845/files/the_five_star_church.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1837/0728/files/algorithme_tableau_exercice_corrig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/las_energias_renovables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/capites_de_areia_livro_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/2246414627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7881/0789/files/kadalifepuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/tejibamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4070/files/89635135014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0840/files/rental_agreement_form_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/catalogo_price_shoes_urbano_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6980/0597/files/82252016388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/wamupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/bavibutirugijipafiju.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47EE 4940 bytes
SHA-256: 563b51845aa4f63fc688c2b7113132162dfbfceb8812737d4d062eaef3877bc9
font_01_sfnt_off000058c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C0 10644 bytes
SHA-256: c3c2b6ccb0e4fdc84300ef57fb076177681c77e2f0db25eb085b79404f9d0b9c