MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, with numerous external URLs embedded within its structure. The ML classifier strongly indicated maliciousness. The primary attack pattern appears to be SEO manipulation or redirection to potentially harmful content, as evidenced by the PDF_SEO_LINK_FARM heuristic firing. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://nexisnailsystems.com/uploads/1/3/0/7/130775111/130775111.html#rem%25C3%25A9dios+para+desfazer+os+quistes
- http://mutinytv.com/uploads/1/3/0/7/130739876/9701708.pdf
- http://hypnosispaloalto.com/uploads/1/3/0/6/130604406/bilubiwuxi.pdf
- http://acdinvestorsoffsbo.com/uploads/1/3/0/6/130621926/gelewaz.pdf
- http://growingfullyhuman.com/uploads/1/3/0/5/130589342/jeragozi_fenugarekes_mimiduwijabad.pdf
- http://postmaster.byboukje.nl/uploads/1/3/0/5/130541346/davajekeninapipawe.pdf
- http://danadadamo.com/uploads/1/3/1/4/131437728/3458410.pdf
- http://darcyk.com/uploads/1/3/0/7/130740213/jewuvemarej.pdf
- http://southernexposurephotography.biz/uploads/1/3/0/8/130814871/jekem.pdf
- http://webdisk.houseofdiamondsart.com/uploads/1/3/0/2/130288932/80463b64134e0.pdf
- http://torontovideoproductions.com/uploads/1/3/0/5/130590117/94d027532d17f.pdf
- http://everhartcollectorsgroup.com/uploads/1/3/1/4/131452826/bapineje.pdf
- http://jadimasalah.net/uploads/1/3/2/3/132303099/b54c54f.pdf
- http://nexisnailsystems.com/uploads/1/3/0/7/130775111/terms.html
- http://nexisnailsystems.com/uploads/1/3/0/7/130775111/dmca.html
- http://nexisnailsystems.com/uploads/1/3/0/7/130775111/policy.html
- https://xivoxatarapi356210982.files.wordpress.com/2020/06/25715568528.pdf
- https://weguvagepeso.files.wordpress.com/2020/06/405513679.pdf
- https://kataxufekor.files.wordpress.com/2020/06/zuraxukimipefidaberu.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_off00007179.bine90289931ab19fa36bc06a0c07751611abdce2a9c24956760d53986176633552 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7179 | 12888 bytes |
font_01_sfnt_off00009952.bin3b1167557c0500c78008053c404847a906c4d495ef15adec583fc97e76626070 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9952 | 16068 bytes |
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