MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm for SEO manipulation. One prominent link, disguised as dissertation topics, redirects to a known malicious URL. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of numerous links and the malicious redirector are strong indicators of a phishing or redirection attack.
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/wb?keyword=dissertation%20topics%20for%20mass%20communication%20and%20journalism%20pdf
- http://files.rnrculinaire.com/uploads/1/3/0/7/130739918/3878564.pdf
- http://wumenopo.lilybeanandlilac.com/uploads/1/3/2/3/132302936/7a333b6.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/5302/1334/files/destro_pvp_talents.pdf
- https://cdn.shopify.com/s/files/1/0436/7102/7865/files/80504937949.pdf
- https://cdn.shopify.com/s/files/1/0435/2652/0987/files/zemapisorar.pdf
- https://cdn.shopify.com/s/files/1/0431/6738/3713/files/xopoxarufejelufutupogag.pdf
- https://cdn.shopify.com/s/files/1/0428/7817/3351/files/airstream_mechanism_in_phonetics.pdf
- https://cdn.shopify.com/s/files/1/0431/7272/4897/files/54910258394.pdf
- https://cdn.shopify.com/s/files/1/0431/7731/2411/files/83334618237.pdf
- https://cdn.shopify.com/s/files/1/0436/1512/5661/files/73440105032.pdf
- https://cdn.shopify.com/s/files/1/0428/5507/1900/files/headway_beginner_workbook_fourth_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/4264/3868/files/macrumors_buying_guide.pdf
- https://cdn.shopify.com/s/files/1/0440/5529/8213/files/govozivomegazulopevebikus.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005da2.bin639a7b9dd85c73edca004dcc833f8b6444510efea7fa07ab4e1304b5eb64b23a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DA2 | 5376 bytes |
font_01_sfnt_off00006fd7.bin04e60ee1f6371228ab0e4f84fae77920a299a0b7e81911071cf29ed281926a5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FD7 | 10076 bytes |
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