MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, masquerading as a free dictionary, which is a common lure for SEO poisoning attacks. The primary link directs to a known malicious redirector, ttraff.ru, which likely serves as a gateway to further malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure itself is indicative of a link farm designed to manipulate search engine results.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.ru/pify?keyword=diccionario+hebreo+biblico+pdf+gratis
- http://files.jimcrydermanrmt.com/uploads/1/3/1/4/131438282/dediwesikexajexoz.pdf
- http://files.madforlife.org/uploads/1/3/1/8/131871852/kefomazegoba.pdf
- http://files.rbt247.com/uploads/1/3/1/8/131858044/c72dc.pdf
- http://files.chirnsidedevelopment.org.uk/uploads/1/3/1/0/131070488/6574189.pdf
- https://cdn.shopify.com/s/files/1/0433/8260/3927/files/29780078567.pdf
- https://cdn.shopify.com/s/files/1/0436/5670/8254/files/21302375475.pdf
- https://cdn.shopify.com/s/files/1/0431/4379/0760/files/18179979663.pdf
- https://cdn.shopify.com/s/files/1/0429/6366/5055/files/gaguwopel.pdf
- https://cdn.shopify.com/s/files/1/0448/0391/5933/files/biodata_sample_download.pdf
- https://cdn.shopify.com/s/files/1/0434/0288/7322/files/asymptotes_of_a_curve.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/birizakidunupujudexi.pdf
- https://cdn.shopify.com/s/files/1/0437/1618/2166/files/bazigar_novel_complete.pdf
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/goletusid.pdf
- https://cdn.shopify.com/s/files/1/0429/1880/5657/files/81002620810.pdf
- https://cdn.shopify.com/s/files/1/0433/9128/7452/files/rutadosaxudejuzob.pdf
- https://cdn.shopify.com/s/files/1/0432/6175/5547/files/zamemakif.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000045d0.bine011cb773a8aec632d310ebfa6313c78ceb92a3c07694dab80c4e78849f291ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45D0 | 5556 bytes |
font_01_sfnt_off000058aa.binc4f1436bbc5fab5a9e8763fa31f33d34ef7b0cc87f2d2289c3d49de6ca5e70e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58AA | 10660 bytes |
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