MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9959
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://uniradioweb.info/userfiles/file/tupawowekubonexivo.pdf In PDF document text
- http://niezapominajkowo.eu/userfiles/file/tapexilapux.pdfIn PDF document text
- http://fourfoods.com/images/files/6383269599.pdfIn PDF document text
- https://www.aukuras.org/ckfinder/userfiles/files/lavuze.pdfIn PDF document text
- http://eakqshop.com/ckfinder/images_store/files/43274515700.pdfIn PDF document text
- http://eotp.info/sites/default/files/fck/file/lefajixodozefureme.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d47de371d1---36596881285.pdfIn PDF document text
- http://www.cbs-emballages.com/upload/file/dadilajibel.pdfIn PDF document text
- http://music-summer-courses.eu/upload/files/20997470750.pdfIn PDF document text
- https://penal-garazh.ru/files/10333776275.pdfIn PDF document text
- https://forssh.com/userfiles/file/tonevagatozepesavunatezos.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/7308225200.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5ca7f2579---74838095598.pdfIn PDF document text
- http://labonscafe.com/userfiles/63166174435.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/9043941084.pdfIn PDF document text
- https://kralpin.com/calisma2/files/uploads/4801290774.pdfIn PDF document text
- https://agriturismoilcolle.org/userfiles/file/47256676113.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/7j0da48m1jcv6e329glnio6tqu/14809825139.pdfIn PDF document text
- http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/vezozoguxujok.pdfIn PDF document text
- https://dewalt-naradi.cz/media/upload/editor/file/dulokokane.pdfIn PDF document text
- http://flapboxes.custompackageboxes.com/userfiles/files/soralas.pdfIn PDF document text
- http://cdkuysuujk.handysociality.com/upload/files/26077978384.pdfIn PDF document text
- https://kungfuclasshongkong.com/louis/taichi/ckfinder/userfiles/files/megisinik.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=london+travel+apps+androidPDF 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_off0000ade5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADE5 | 10408 bytes |
SHA-256: aba20432a3bcee183fc1c895c0dd6efa47273e126852e92a92600ba5ed9221e6 |
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font_01_sfnt_off0000c589.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC589 | 15588 bytes |
SHA-256: 7d306ef6f4402366f757fde78e1b0ca01d65cf26e80668ae761b050aff48cb5b |
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font_02_sfnt_off0000ed21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED21 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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