MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, with the heuristic PDF_SEO_LINK_FARM indicating a link farm. One of these links, https://ttraff.ru/wb?keyword=villa%20lobos%20choros%201%20pdf, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the primary malicious URL.
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=villa%20lobos%20choros%201%20pdf
- http://files.eponafarmkeswick.com/uploads/1/3/1/0/131070992/eb869881190a.pdf
- http://files.mvchoir.org/uploads/1/3/0/8/130874073/8189692.pdf
- http://files.cannonbeachescaperoom.com/uploads/1/3/2/8/132814463/tunesetok.pdf
- http://files.exmouthcaninecentre.co.uk/uploads/1/3/0/8/130874128/jenasaj.pdf
- http://files.mapabradford.net/uploads/1/3/1/8/131858747/285612.pdf
- http://files.valleyliberator.com/uploads/1/3/1/6/131606035/padavosagog.pdf
- http://files.duanebrownlaw.com/uploads/1/3/1/4/131483253/2887604.pdf
- https://rafivebexenu.files.wordpress.com/2020/06/jakuli.pdf
- https://wapisamuvubu.files.wordpress.com/2020/07/61458185849.pdf
- https://jagogoti.files.wordpress.com/2020/07/sazexetorovugafatuzupoku.pdf
- https://nizoxede.files.wordpress.com/2020/06/xubirakebeku.pdf
- https://momipeneji.files.wordpress.com/2020/07/lufolit.pdf
- https://xatifuve.files.wordpress.com/2020/07/50449108277.pdf
- https://tigizenawa.files.wordpress.com/2020/06/79022328443.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zamujogeve.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.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_off00006e33.bin9a2eb3e515d40556769debfc0bfc3bb99888404fcc1de0b4839e302cc9912e3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E33 | 4884 bytes |
font_01_sfnt_off00007ec8.bin649ee54db6a97907ea2db0ce518d35b042fe754f9282fc6cc3fcd0561f5c3485 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC8 | 10564 bytes |
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