MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. It also features a link farm pointing to multiple compromised websites, suggesting an attempt to redirect users to malicious or phishing content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Embedded JS stream low PDF_JSPDF references a /JS stream. 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 http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a53cdb51503---45321712103.pdf In PDF document text
- https://festival.bg/fckeditorfiles/file/6844383420.pdfIn PDF document text
- http://coral-travel66.ru/admin/ckfinder/userfiles/files/71777295413.pdfIn PDF document text
- http://abpaluso.com/upload/file/69506227486.pdfIn PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac585e12751---8436031269.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ad1b997cf---45075261685.pdfIn PDF document text
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/5gm0k1gc383vnpe9t6i4ljk5dt/fajogagiz.pdfIn PDF document text
- https://associazionedynamica.it/uploads/file/karaliwudigufupoka.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2b2416786---98159206796.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca9481cf38---burukalebop.pdfIn PDF document text
- https://m3csrl.com/file/xemetezugefujaxulexujufe.pdfIn PDF document text
- https://drsubhashawale.com/ckfinder/userfiles/files/67559921919.pdfIn PDF document text
- https://studio-september.com/wp-content/plugins/super-forms/uploads/php/files/196ce3dee9f2e3038339fbb0829a00c7/mewibixikuzapis.pdfIn PDF document text
- http://due.pt/js/ckfinder/userfiles/files/35555536837.pdfIn PDF document text
- https://aprilboya.com/userfiles/file/70820554539.pdfIn PDF document text
- http://sushi-belovo.ru/files/97788641326.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/69452804240.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/1i89jb2mlanm0g7appavcbee66/92842448627.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/pugewozexalemu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=who+is+the+3rd+richest+man+in+the+worldPDF link annotation
- 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_off0000e6ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fedc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDC | 18540 bytes |
SHA-256: a5421f846b181815665ee9ce0cb234fb17ac34b70044ad41ac04715e69cb1b99 |
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font_02_sfnt_off00012e85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E85 | 10888 bytes |
SHA-256: 8e9ab99935c121852382e2a421b1a530fcb42380972ed672fba06082a308ca8d |
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