MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous URLs, many hosted on compromised CMS uploads and disposable domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were extracted, the structure and URL patterns are consistent with a malicious PDF designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://mysilo.com/upload/ckfinder/files/73537049289.pdf In PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16092c761f24b6---70272130807.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e4c7b4471---vevijufaso.pdfIn PDF document text
- https://europartner2.pl/uploads/59100223840.pdfIn PDF document text
- http://thrifty-uy.com/files/others/33094378470.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9034b6314916681c2b06888f410ada52/zemafan.pdfIn PDF document text
- https://irantruck.ir/data/file/8416101762.pdfIn PDF document text
- http://hibertek.com/image/files/20210606_105257.pdfIn PDF document text
- http://champaigncursillo.com/userfiles/file/47897814863.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/35066758790.pdfIn PDF document text
- http://dribblebar.pl/userfiles/file/benajuganovujaluwajarase.pdfIn PDF document text
- http://bajajsports.com/userfiles/file/69075458005.pdfIn PDF document text
- https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/ravimuzizojozifanivem.pdfIn PDF document text
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/nowikumitewa.pdfIn PDF document text
- http://beastyenergy.com/userfiles/file/68513979225.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f190511a895---xogowamiluvagolisujujufud.pdfIn PDF document text
- https://lawina-radom.pl/files/file/2761764191.pdfIn PDF document text
- http://samurairamenbar.com/uploads/files/jipajotamo.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce2398cdd8e---8153058500.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/d26f6c2340bd411987bd7d78ca43c549/74166616825.pdfIn PDF document text
- https://uleshuzataruhaz.hu/files/file/94579144554.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609297b3a0d9e---83972456669.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/c484e6a5f01ec5396b94b5273ccf0d25/waneb.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e2f5158da---vonedokadusixipakabopajo.pdfIn PDF document text
- https://saam.vn/images/content/file/37469487124.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=what+foods+are+allowed+on+an+alkaline+dietPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF194 | 10620 bytes |
SHA-256: e1951b516f42046c99353d7f4d94ff4cdefc69186751db049cf57f9086766084 |
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font_01_sfnt_off000109dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109DD | 18152 bytes |
SHA-256: 59b2a17cde76b04543b553f816fa193ca743e46340959a6bf9f6c3e067fea0ef |
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font_02_sfnt_off00013919.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13919 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off0001512a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1512A | 17240 bytes |
SHA-256: 97a7d6b3bd18dd92b19129cef1f1608f6a40740aeba231d9c5cf44caa136fb5d |
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