MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded links that redirect to known malicious infrastructure, specifically disguised as a 'roku com link activate' lure. The document body and heuristics indicate a callback phishing or tech-support scam pattern, aiming to trick users into clicking the malicious URL. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://gettraff.ru/aws?keyword=roku+com+link+activate In PDF document text
- https://cdn-cms.f-static.net/uploads/4367624/normal_5f937f9dc7dab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365555/normal_5f90829937f65.pdfIn PDF document text
- https://zurukuwimuso.weebly.com/uploads/1/3/4/3/134325804/41237237d0.pdfIn PDF document text
- https://masogipu.weebly.com/uploads/1/3/1/6/131606875/8222501.pdfIn PDF document text
- https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/846a66cdb7.pdfIn PDF document text
- https://kukuziso.weebly.com/uploads/1/3/4/4/134468315/41da77ebb01507.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/30265951062.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/jineputavejuvabumudut.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/biological_anthropology_the_natural_history_of_humankind.pdfIn PDF document text
- https://s3.amazonaws.com/lopadivupudexa/nekawuzirekozefixutovid.pdfIn PDF document text
- https://s3.amazonaws.com/penefelomiju/rigemakumiruva.pdfIn PDF document text
- https://s3.amazonaws.com/regovadeje/calendario_julio_2019_colombia.pdfIn PDF document text
- https://s3.amazonaws.com/retisovojor/louisiana_public_records_statute.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A69 | 4804 bytes |
SHA-256: 6fa6b627f7204061accfaa7ac531d1ae34cc372901d35814da0682beb9d0edd6 |
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font_01_sfnt_off00006abd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ABD | 10676 bytes |
SHA-256: 5b67e3531435667c47c62e81dad585fa07e1fbc6e6b7f14b48b2204177a01b94 |
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font_02_sfnt_off00008efd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EFD | 16084 bytes |
SHA-256: 4b9554522d39f0300fa52a55595e76db765137f766e30e2d5537cf7435e611c9 |
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