MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary redirector URL is designed to lure users with a search query for 'Romance histórico livros pdf'. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malicious redirection campaign.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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.cc/wb?keyword=romance%20hist%C3%B3rico%20livros%20pdf In PDF document text
- http://files.cuestacollegerodeo.com/uploads/1/3/1/4/131483550/f518ae417.pdfIn PDF document text
- http://files.generalpencil.com/uploads/1/3/1/1/131164456/8256704.pdfIn PDF document text
- http://files.sellingmomma.com/uploads/1/3/2/7/132740498/8292380.pdfIn PDF document text
- http://files.mochambermusic.org/uploads/1/3/2/8/132814138/7219469.pdfIn PDF document text
- http://files.designsbycarolann.com/uploads/1/3/0/8/130814513/ac27058e6e8.pdfIn PDF document text
- http://files.butterflybirths.com/uploads/1/3/1/3/131379899/3162445.pdfIn PDF document text
- http://files.mombodfitness.com/uploads/1/3/1/6/131637853/ead3e2176.pdfIn PDF document text
- http://files.chantolaspinall.com/uploads/1/3/2/7/132710683/396b9d7bc1b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wekijun.files.wordpress.com/2020/06/38126411418.pdfIn PDF document text
- https://kasolelega.files.wordpress.com/2020/07/badotoretizowaj.pdfIn PDF document text
- https://zuzilunox.files.wordpress.com/2020/06/muludijubakotote.pdfIn PDF document text
- https://bunazixuvavu.files.wordpress.com/2020/06/68026594468.pdfIn PDF document text
- https://jedunev.files.wordpress.com/2020/06/98271821413.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8221/1733/files/nuwolevejere.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9547/4855/files/71202029439.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4252/9695/files/xububaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2692/2146/files/futokaneromefa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6913/7305/files/45929822148.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1179/2286/files/66888744254.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_off0000ab33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB33 | 5388 bytes |
SHA-256: f8be8484fe1ee396c4ea61a0c1e4f0bdcc8152d73542fc92e1fce9c159311029 |
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font_01_sfnt_off0000bd10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD10 | 12952 bytes |
SHA-256: ac4701d5ab14012aa6006c6e2be11467f003facc6a181d537e81d3979f5ceabe |
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