MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or a distribution mechanism for further malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous SEO-like links suggests an attempt to manipulate search results or distribute payloads. No scripts were extracted, but the structure points to a malicious document delivery.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://weddingdjthousandoaks.com/uploads/1/3/1/4/131406535/131406535.html#calcular+matriz+inversa+con+matriz+adjunta
- http://jsguldsmide.se/uploads/1/3/1/4/131483772/5471896.pdf
- http://curvaceouscoutureweddingdressesma.com/uploads/1/3/0/7/130776539/580ac51b73.pdf
- http://agendart.ca/uploads/1/3/0/5/130588870/zirimosuvumiteb_xawefisotaz_xarazananavutu.pdf
- http://indigenousmanagement.net/uploads/1/3/0/6/130620657/xutomuwe.pdf
- http://bipsss.com/uploads/1/3/1/3/131381243/dametezisip.pdf
- http://scarwf.org/uploads/1/3/0/7/130775174/5c4604767.pdf
- http://vegandsm.com/uploads/1/3/0/9/130969960/nizokulilibowulemisa.pdf
- http://ajdevitt.com/uploads/1/3/1/1/131164157/3893755.pdf
- http://sunlightsilverjewelry.com/uploads/1/3/0/8/130874680/4638217.pdf
- http://inseljensislandbar.net/uploads/1/3/0/6/130622029/tizilaxukanazemeg.pdf
- http://galadelinternet.com/uploads/1/3/0/3/130379094/dopimafumemoli.pdf
- http://loftconversionsmiddlesbrough.com/uploads/1/3/1/4/131408546/8209068.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000658f.bind99de96c036c96af3ead74d03bc7f1b4170c2fec4a307ff51c55d18e14a06a14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x658F | 9604 bytes |
font_01_sfnt_off000088c6.bin3e9a9dfb40a01f9f7c9c545b28ba37f1de74591f2b47bc69a9983f40f3f3ebd7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88C6 | 16080 bytes |
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