MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a large number of external links, many of which point to other PDFs hosted on similar domains. The document body text explicitly mentions 'Download cissp pdf', suggesting a lure to download malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous SEO-like PDF links indicates a potential link farm for distributing malware. No scripts were extracted from this sample.
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://youngcelebrationsoflife.ca/uploads/1/3/0/7/130775730/130775730.html#download+cissp+pdf PDF link annotation
- http://preventivemedicalservice.com/uploads/1/3/0/7/130740563/aaf3c0292.pdfIn PDF document text
- http://urgenthousecalls.com/uploads/1/3/0/7/130776105/bipapexejenoza-mulaxefinen-vorimubirari-disuxoli.pdfIn PDF document text
- http://autodiscover.twistedblendz.com/uploads/1/3/1/4/131437233/tulaparalege.pdfIn PDF document text
- http://flipyourthreads.net/uploads/1/3/0/8/130873946/wuzavam.pdfIn PDF document text
- http://juliehetherington.com/uploads/1/3/1/4/131453056/mewiwoxitidulubu.pdfIn PDF document text
- http://mail.speluqueros.com/uploads/1/3/0/5/130550910/87509f0f841.pdfIn PDF document text
- http://sydney.awrc.org.au/uploads/1/3/0/6/130604355/7b593c1.pdfIn PDF document text
- http://michkah.com/uploads/1/3/0/6/130605203/54186eb5de.pdfIn PDF document text
- http://glwwnet.com/uploads/1/3/0/4/130483515/popurujojebex.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 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F9C | 9224 bytes |
SHA-256: 338e0659f8c6992b6d08a888beba6e0ddd2a7350f3445b3d9e978590d8415064 |
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