MALICIOUS
96
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the structure suggests a link farm or redirection mechanism, possibly to distribute malware or engage in SEO spam. The presence of numerous unique URLs points to a coordinated effort to host content across multiple domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://joesplan.org/uploads/1/3/1/4/131453944/131453944.html#significance+of+the+study+example+pdf PDF link annotation
- http://djtphotography1.com/uploads/1/3/0/6/130604575/lukurezobo-dilij.pdfIn PDF document text
- http://lighthold.org/uploads/1/3/0/7/130739489/1773314.pdfIn PDF document text
- http://multihulllift.com/uploads/1/3/0/7/130739726/tafenegebipidesod.pdfIn PDF document text
- http://stickitin.us/uploads/1/3/0/4/130476359/zesuxovupasodiw_pelaborasi.pdfIn PDF document text
- http://thrivingrootsfarm.org/uploads/1/3/0/4/130488512/surideb.pdfIn PDF document text
- http://mail.allaboutoilstore.com/uploads/1/3/0/6/130640059/bopomi.pdfIn PDF document text
- http://mail.buildingblocksplaycenter.com/uploads/1/3/0/5/130588529/rinixegiba.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005821.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5821 | 5628 bytes |
SHA-256: 19a786b95abd333e7703e34250ba43674937af2a6e3ad157907d6fb41ef6b2e5 |
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font_01_sfnt_off00006b27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B27 | 9872 bytes |
SHA-256: d7924f2840474a65d5218406ffb182d79b73e35cf331cb1efe17b7104e1d0a5a |
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