MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many of which point to compromised WordPress upload storage or disposable hosting, indicating a link farm designed for malicious redirection. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The embedded URLs suggest an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://crysiq.ru/uplcv?utm_term=effective+multicultural+communication PDF link annotation
- https://loonbedrijfschimmel.nl/userfiles/files/xaredalozebap.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/karetegewet.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/filikavaxuvaza.pdfIn PDF document text
- http://seattledesis.com/fckeditor/file/dogijaso.pdfIn PDF document text
- https://guruamardaspublicschool.com/userfiles/files/78769430179.pdfIn PDF document text
- http://huonglonghotel.com/uploads/image/files/nesagerorulaxas.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/1387310547615981acad537.pdfIn PDF document text
- https://weldingportal.it/userfiles/file/sakati.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/00125689fd8b635c9bfcdfd4a074c1ee/latigegupubuforoni.pdfIn PDF document text
- http://www.oomewatersport.nl/upload/files/zekadim.pdfIn PDF document text
- https://tekmaker.com/upload/files/xedovoturogevugatatu.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/titogazipulimado.pdfIn PDF document text
- http://vvk-wiedermann.at/userfiles/file/vaxivafekijodulobo.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/c88f254b401c8067160c35f04bb45794/58013415135.pdfIn PDF document text
- https://avukat.dnsaktif.net/upload/files/18800879859.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613c07ec537ae---gigupunerojodesuna.pdfIn PDF document text
- https://juvelyrikoscentras.lt/Files/file/tixojitasurunudivujopo.pdfIn PDF document text
- https://aftaplan.com/works/peepsparty/html/upload_files/file/6217560979.pdfIn PDF document text
- http://evopizza.lt/ckfinder/userfiles/files/96623456927.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/pajorabim.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/30263790723.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/f1082801399f74d86991e3c956aad667/napuxo.pdfIn PDF document text
- 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_off0000d112.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD112 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e929.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE929 | 10480 bytes |
SHA-256: 61664db27f235ec7ce639ccc023102520d4f574fb15d3bee006484ba4e64ebb8 |
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font_02_sfnt_off000100ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100EE | 16384 bytes |
SHA-256: bf2aadd8f12bdbb67f1902b364148f8ff332ac834d5579140b6a4bba36f5d181 |
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