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, pointing to various PDF files and HTML pages. The ML classifier also strongly indicated maliciousness. While no scripts were directly extracted, the structure and numerous external links suggest an attempt to redirect users to potentially malicious or spam content, possibly as part of an SEO poisoning or content distribution scheme.
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://xcorrupt.com/uploads/1/3/0/5/130589281/130589281.html#guia+de+admision+ipn+2017+pdf
- http://fitnesstreff.eu/uploads/1/3/1/6/131607230/d2a22c36.pdf
- http://hackingsmash64.lo-phi.com/uploads/1/3/0/3/130324191/9984410.pdf
- http://restaurantsofgoodtaste.org/uploads/1/3/0/6/130639588/poparexi_xaretoweti_bavilisuri_badod.pdf
- http://cpanel.airlinepilotservice.com/uploads/1/3/0/2/130273790/zagelamakap.pdf
- http://xcorrupt.com/uploads/1/3/0/5/130589281/terms.html
- http://xcorrupt.com/uploads/1/3/0/5/130589281/dmca.html
- http://xcorrupt.com/uploads/1/3/0/5/130589281/policy.html
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://menanesude.files.wordpress.com/2020/06/26370929629.pdf
- https://gozuwej.files.wordpress.com/2020/06/42689413082.pdf
- https://jokovuzowo187160868.files.wordpress.com/2020/06/zemuzemalame.pdf
- https://rilamexix970799637.files.wordpress.com/2020/06/wumutafolofanita.pdf
- https://sikazagoze.files.wordpress.com/2020/06/nojuw.pdf
- https://jadosesu313287403.files.wordpress.com/2020/06/93009592874.pdf
- https://xadixijep.files.wordpress.com/2020/06/35606500255.pdf
- https://lifaxeja.files.wordpress.com/2020/06/xejubilazubakafasufudozo.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005cf7.bincf50d13c5c21d2e34fba0d9dd21119d4839fc35fdaebfe62cbacf51850cc328d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CF7 | 1936 bytes |
font_01_sfnt_off00006635.bin3ec0162dae3b389d9a5f4dc3464210f2dc04dd521134f3c9b947c5093a3a5bb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6635 | 11692 bytes |
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