MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or host malicious content. The ML classifier strongly indicated maliciousness, supporting the interpretation that this PDF is a delivery mechanism for further malicious activity.
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://mail.arikal.co.il/uploads/1/3/1/3/131378993/131378993.html#horizons+6th+edition PDF link annotation
- http://thebrilliantminute.com/uploads/1/3/0/2/130289315/widatejor_pajurabebo.pdfIn PDF document text
- http://autodiscover.hamilkerrchallenge.com/uploads/1/3/1/4/131437948/8910982.pdfIn PDF document text
- http://styledoesnotdefine.com/uploads/1/3/0/5/130544243/3654073.pdfIn PDF document text
- http://yourchinaguy.com/uploads/1/3/0/7/130739450/winepegag.pdfIn PDF document text
- http://kybercave.org/uploads/1/3/1/4/131452732/3455572.pdfIn PDF document text
- http://exceleratethepersonnu.net/uploads/1/3/0/8/130814132/xulunab.pdfIn PDF document text
- http://mylesgorham.com/uploads/1/3/0/6/130604225/8514c8c5d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wadedib.files.wordpress.com/2020/05/74699940517.pdfIn PDF document text
- https://ribixobu.files.wordpress.com/2020/05/89861212715.pdfIn PDF document text
- https://rusevaleno.files.wordpress.com/2020/05/jituges.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008d2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D2E | 11980 bytes |
SHA-256: 19744ee4b45a8d50253b9dabb91ab6410c0dfbef4773d3457d11f7f358eeb1bf |
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