MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external links, many of which are hosted on suspicious domains and appear to be part of a link farm. The document body text, though partially corrupted, includes the phrase 'Facture d'avoir exercice corrigé', suggesting a lure related to invoices or payments. The ML classifier strongly indicated maliciousness, and the presence of many external links points towards a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 5
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://kinkiosk.com/uploads/1/3/1/3/131384281/131384281.html#facture+d%2527+avoir+exercice+corrig%25C3%25A9 PDF link annotation
- http://dazzlingexpressions.net/uploads/1/3/0/7/130738501/7303488.pdfIn PDF document text
- http://dfs-tech.net/uploads/1/3/0/2/130271011/6702925.pdfIn PDF document text
- http://medicalwhitepapers.com/uploads/1/3/0/9/130969316/1178043.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://karawalugut.files.wordpress.com/2020/06/jutoxumarewuzipuramasok.pdfIn PDF document text
- https://nirakopifaz.files.wordpress.com/2020/06/zudafi.pdfIn PDF document text
- https://xadixijep.files.wordpress.com/2020/06/ziwokumexawuvalifinixoj.pdfIn PDF document text
- https://rudagus.files.wordpress.com/2020/06/zunalafijiwopabop.pdfIn PDF document text
- https://sifuloli.files.wordpress.com/2020/06/35473568030.pdfIn PDF document text
- https://rekinirive.files.wordpress.com/2020/06/595843594.pdfIn PDF document text
- https://kuvimuzatep.files.wordpress.com/2020/06/13376867892.pdfIn PDF document text
- https://piwunis.files.wordpress.com/2020/06/lemijolijetofas.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_off00005a10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A10 | 11052 bytes |
SHA-256: cb731360c1edca5a8eedc027baef724e75c81554a57ce18a22061bd23ba31574 |
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