MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to 'Problemas razonados de reparto para segundo de primaria' and includes URLs that appear to be part of a link farm. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves directing users to a multitude of external PDF files, likely for SEO spam or to host further malicious content.
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://appcitygames.nl/uploads/1/3/0/2/130270826/130270826.html#problemas+razonados+de+reparto+para+segundo+de+primaria
- http://multitechnrj.net/uploads/1/3/1/3/131380021/26cd2ad2.pdf
- http://form-1099-c.com/uploads/1/3/0/6/130604018/fuxuzizujofati.pdf
- http://peekaboo-tique.biz/uploads/1/3/0/8/130874530/migudojubuvu.pdf
- http://goliveyachts.com/uploads/1/3/0/6/130639374/8998349.pdf
- http://weloveamericasheros.org/uploads/1/3/0/3/130323415/xokipa.pdf
- http://thepeacefulmarket.com/uploads/1/3/0/5/130590438/mavuxujapuno.pdf
- http://appcitygames.nl/uploads/1/3/0/2/130270826/terms.html
- http://appcitygames.nl/uploads/1/3/0/2/130270826/dmca.html
- http://appcitygames.nl/uploads/1/3/0/2/130270826/policy.html
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://mewukajiz735874670.files.wordpress.com/2020/06/69460440604.pdf
- https://zarupuzagi.files.wordpress.com/2020/06/davujuga.pdf
- https://suruxux.files.wordpress.com/2020/06/nedonazejofesirirugoxeb.pdf
- https://wikukan666946454.files.wordpress.com/2020/06/bominixuja.pdf
- https://relopupuxa.files.wordpress.com/2020/06/9039470091.pdf
- https://puroditaduj70542517.files.wordpress.com/2020/06/51014507640.pdf
- https://wekujepomope.files.wordpress.com/2020/06/22516763575.pdf
- https://silopesazov433664634.files.wordpress.com/2020/06/84738670747.pdf
- https://duvisigu.files.wordpress.com/2020/06/negufedavetesilugi.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://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005d9b.bin63ea0a9b37c233a35ed68f69f9596d8aa979c3df0aa4d0427ad0103ed448c2ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D9B | 11056 bytes |
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