MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious actions. This script likely redirects users to external URLs, many of which are hosted on compromised WordPress sites, as indicated by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f5625c86a---sejefarif.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160755e1332337---badibix.pdf
- http://women-for-marriage.com/ckfinder/userfiles/files/rugibukawamixosaw.pdf
- https://asi-filter.pl/files/file/roditaxef.pdf
- http://www.gpkoaee.ru/ckfinder/userfiles/files/33935069312.pdf
- http://ecompletecontact.com/ckfinder/userfiles/files/57844850353.pdf
- http://txextremecarts.com/userfiles/file/banazoru.pdf
- http://skikk.eu/app/webroot/files/userfiles/files/bumajiridenekufawe.pdf
- http://desiaussies.com/ckeditor/uploads/files/xomekafelosuvepuxokola.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098831915fc6---boxulovisoj.pdf
- http://youandisagenix.com/ckfinder/userfiles/files/wiwarazafinovila.pdf
- http://studiolegalebisantis.it/userfiles/files/43217359312.pdf
- http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/48317583988.pdf
- http://tasarimak.net/ckfinder/userfiles/files/gapijorizukezowari.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/8984f5d0d1b416603b17cd5309709f7b/jumixonazeduvakikaf.pdf
- http://dioceseofniranam.org/userfiles/file/38936866928.pdf
- https://systematix.pl/userfiles/file/29749824617.pdf
- https://pianoinprimopianofestival.com/uploads/file/bumatawo.pdf
- https://worldcastlive.com/userfiles/file/55921260774.pdf
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/4fc5131a219c821eb872f2aee0c8a215/19943328983.pdf
- http://uniondrygoods.com/fckeditor/userfiles/file/befomuwoba.pdf
- http://www.contal-farmer.com/uploads/files/11093825701.pdf
- http://riviera.az/userfiles/file/93096904294.pdf
- http://domainecomps.com/documents/files/71024139301.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1611cddddda53b---55488356308.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=zk+access+control+software+manual
- 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_off0000c1df.bin521473630c8a31286b0284aced8650d36309a8920d99cdb4c2aa89c98839dfce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1DF | 17996 bytes |
font_01_sfnt_off0000ef75.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF75 | 16792 bytes |
font_02_sfnt_off0001078c.binbb37b2da30f994b9100e411f60de01b053d61aedb8b0b50a2acaabe17538937b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1078C | 10644 bytes |
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