MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being 'https://cdn.shopify.com/s/files/1/0433/0097/8853/files/84215774092.pdf'. The document body, though heavily obfuscated, contains text referencing 'Casti guidebook to asme b31. 3 pdf' and the 'wkhtmltopdf' tool, suggesting a lure to a fake document. The presence of multiple external PDF links indicates an attempt to distribute content or redirect users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=casti+guidebook+to+asme+b31.+3+pdf In PDF document text
- http://files.visionsofexcess.co.uk/uploads/1/3/2/6/132681443/61087e3.pdfIn PDF document text
- http://files.beautifulyounailsandspa.com/uploads/1/3/0/8/130874587/d0250ae14.pdfIn PDF document text
- http://mulimol.allielullart.com/uploads/1/3/2/6/132696194/9495353.pdfIn PDF document text
- http://rulinaneg.lakelehmanmetz.com/uploads/1/3/1/3/131398186/xiluxirep-widaf-mupuw-xadovodixifa.pdfIn PDF document text
- http://files.synaesthesiajournal.com/uploads/1/3/2/6/132696030/xufikavasaxi_logig_kovunulob_mosisosu.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/1/0433/0097/8853/files/84215774092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fodafozisejuleluz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8857/6661/files/votixodogofovigatinoninu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7892/4953/files/planos_de_casas_campestres_de_dos_pisos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0611/3430/files/84065010854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3009/2712/files/diletijuvusazetama.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2160/6820/files/raboliber.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3122/2677/files/molecular_mechanism_of_cell_differentiation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8615/9767/files/vomevejulorajiwer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7348/6496/files/8164344508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1518/4277/files/functional_neurological_symptom_disorder.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1154/4987/files/99991321670.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004abe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4ABE | 5588 bytes |
SHA-256: b82bcf1addfe4f40bfebac2dc05a2bc01cb21780e8e4d88f16690e2edaaf89d0 |
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font_01_sfnt_off00005dbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DBF | 10112 bytes |
SHA-256: 57700d89f68c97b7e59e831c420801881064fdb0e5940b68ee2f32e958072750 |
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