MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body contains the text 'Juega y aprende', suggesting a lure or educational theme to mask the malicious intent. The ML_NYX_PDF_MALICIOUS heuristic strongly indicates maliciousness. The primary attack pattern involves directing users to a network of external URLs, likely for SEO spam or to host further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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://cfthomas.com/uploads/1/3/0/5/130540083/130540083.html#juega+y+aprende PDF link annotation
- http://gotumble.life/uploads/1/3/0/5/130588360/8583345.pdfIn PDF document text
- http://ideascreativity.com/uploads/1/3/0/6/130605228/mapojimekefagig-buminewabefe-wodejewer-davakavaruduna.pdfIn PDF document text
- http://www.eryaglobal.com/uploads/1/3/0/6/130639797/3eb6f45a955.pdfIn PDF document text
- http://becomeroyalty.org/uploads/1/3/0/5/130551697/74b53efffaf0c.pdfIn PDF document text
- http://nolancunningham.net/uploads/1/3/0/3/130324350/janavefijul-radobajus.pdfIn PDF document text
- http://anarogersfitness.com/uploads/1/3/0/7/130776492/4237489.pdfIn PDF document text
- http://sohamswebsite.com/uploads/1/3/0/8/130873923/e22454fd903ed51.pdfIn PDF document text
- http://magic-life.com.tw/uploads/1/3/0/4/130483836/vabepetiwadavuwuxeva.pdfIn PDF document text
- http://wcafethailand.com/uploads/1/3/0/6/130621857/2059309.pdfIn PDF document text
- http://meganacase.com/uploads/1/3/0/6/130621071/1737455.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000054f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54F3 | 8308 bytes |
SHA-256: 30dfb88bdce7195ae0143a22f8e5a57731efbb886cb12b1b55a71dfc7b38097d |
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font_01_sfnt_off00007357.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7357 | 16340 bytes |
SHA-256: 451895f61762ee2c92071758aadde1050fcd1a41f8262062c25ecb60f5c137f5 |
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