MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links to external websites, many of which are structured as PDF files with numeric slugs, indicating a link farm or SEO spam tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a potential for malware distribution or phishing. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://akronjoeys.org/uploads/1/3/0/5/130550706/130550706.html#tesis+upn+contabilidad PDF link annotation
- http://bestvehiclesforsale.com/uploads/1/3/0/3/130324324/mibexegudetuto.pdfIn PDF document text
- http://adu4us.com/uploads/1/3/0/5/130543050/wujopurewabij_luvuliwi_bobibolixe_fobure.pdfIn PDF document text
- http://clientacq.com/uploads/1/3/0/9/130969671/fokewapijegoweduz.pdfIn PDF document text
- http://canopalma.org/uploads/1/3/0/6/130604658/047e9917ae3.pdfIn PDF document text
- http://dietlicious.net/uploads/1/3/0/4/130476034/mivadubal.pdfIn PDF document text
- http://louromartinsadvogados.pt/uploads/1/3/1/3/131380485/25b09591322e89d.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007c97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C97 | 8844 bytes |
SHA-256: 547738e878302de1b55768506ec709d8430f4039b4523802a4f1f642c5b36275 |
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font_01_sfnt_off00009ca0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CA0 | 2420 bytes |
SHA-256: 6c8203cc433f3c43ff2dfa1252dfda58061aa43394712e2f2bef77a18bf374e6 |
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font_02_sfnt_off0000a764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA764 | 16648 bytes |
SHA-256: fcfb3bb3734280c83b7e8f40476e4be14383df497b026725fc58954651f710b2 |
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