MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS uploads or disposable domains, indicating a link farm designed to lead users to malicious content. ClamAV and an ML classifier identified this PDF as malicious, specifically a phishing trojan. The presence of multiple external URIs and link farm characteristics strongly suggests an attempt to lure users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://pinzimoniofiumicino.eu/userfiles/files/vawotugipomarajaza.pdf
- http://poltinik.ru/userfiles/file/sonobiliwugusij.pdf
- http://www.ecostroyservis.ru/File/tomaraziwavinux.pdf
- http://azizolace.cz/images/file/53825497273.pdf
- http://atek-ent.com/upload/file/magoxovusafudozigiwazo.pdf
- http://pensjonatagat.pl/userfiles/file/51474440203.pdf
- https://anpheatingandac.com/nbloom/fckuploads/file/nuwatenusitesefum.pdf
- https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a922b636a---69937387157.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/r7fj1ueag0as9n6t4scdi5um80/libapigujuwukipefafuju.pdf
- http://hsound.ro/images/custom/file/91003813776.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c20c940ef26---46355073395.pdf
- http://goldnumber.info/userfiles/file/mixufifosibixigus.pdf
- http://garantc.ru/userfiles/file/sakak.pdf
- https://muguet.fr/sites/default/files/file/28980782277.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/635gpav81iggqmltv5od3u35fe/71794619526.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbddb648195---12337203695.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/pk729s9u62atp3qv03tiknseq7/22240696782.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/883d3b7fc50f903451598937f5a704bf/lowezivakidurebufanokamat.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bb0cdf69744---gidigafefexotanaluwez.pdf
- https://publicbridge.pl/userfiles/file/97590076423.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079426b7e2ea---guropibenu.pdf
- http://biancoacolori.it/userfiles/files/fotevetijifadibufu.pdf
- http://duoctruongxuan.vn/userfiles/image/file/ladakujeva.pdf
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5ca8c0945---notedunomukegotepelevuwax.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bbccfb3822d---fowipupipomesijed.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=darling+stand+by+me+chords
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dbb7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB7 | 16792 bytes |
font_01_sfnt_off0000f3ce.bin43afba25194a25ea40d28daee2878af3f9f0c0a98aa8d3032129af325f632bf3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3CE | 11072 bytes |
font_02_sfnt_off00010d35.binb3cbcf02ca2533225d89251aab50f0b864b8ddaa049427fd011a085e5d0ffa1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D35 | 17332 bytes |
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