MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the nature of the link farm and the detection as a trojan indicate a high likelihood of malicious intent, possibly involving the download of further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/e9dfa8e6bb2aeb0634b61083e68b0d04/53635943445.pdf In PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1611b711e8ebb7---fedutazaje.pdfIn PDF document text
- https://digireg.cn/upload/jiwugami.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/0l7ibr0qj4eeecgim4pvm97kkd/xukijivenajinetoromumerim.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160d209ff1c0e9---woruwovapizomokazedumado.pdfIn PDF document text
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/6a3ea05917fa2240e38333ab4d814c23/zidolaxi.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/17723298034.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aace692dbfc---74355959807.pdfIn PDF document text
- https://mwasafat.com/uploads/files/furelidizemoka.pdfIn PDF document text
- https://callmarkinvestments.com/callmark/files/bufiratetemo.pdfIn PDF document text
- http://idcla.net/upload/files/solepizigogogevesimarekeg.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f66bfda294---gikog.pdfIn PDF document text
- http://konemara.hu/userfiles/file/demiborevisatuwo.pdfIn PDF document text
- http://ghalemdi.com/userfiles/file/65166928865.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160941f328cbc8---31098240564.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b822ec6b6---nuxojiw.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/1f6d9dd6b9a40f32bb0cad44153ab24e/37630733066.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f932571b4---51847461666.pdfIn PDF document text
- http://jaluzipro.ru/public/userfiles/file/95394179161.pdfIn PDF document text
- http://morethancars.nl/uploads/edytor/file/tirezukat.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/baxenagu.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac900f94063---getovamuvotenido.pdfIn PDF document text
- https://e-tta.com/app/webroot/userfiles/files/90307206581.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/97845919746.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=m%C3%A9todo+de+la+doble+integraci%C3%B3n+en+vigas+paso+a+pasoPDF 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_off0000e43a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE43A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4C | 18828 bytes |
SHA-256: 0ea8dec1ade5b60917e5c9b44738a1cbd8f3d444869e9458ab6c9b800e4e1389 |
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font_02_sfnt_off00012cc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CC1 | 11180 bytes |
SHA-256: a7a93d656d055c45e2c9c23b28e2df213c5824acc61b9ed70144131a6e5019e0 |
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