MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. The PDF also features a large number of external links, many of which point to compromised websites or disposable hosting, indicating a potential phishing or redirection scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://archism.ru/uplcv?utm_term=questions+on+angle+of+elevation+and+depression PDF link annotation
- https://gestcargo.com/uploadfiles/file/8474869140.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc3f6619ec---35122508015.pdfIn PDF document text
- http://czyxchem.com/upload/files/sivumazuxizunomoxus.pdfIn PDF document text
- http://cuoredicane.it/userfiles/files/xudajutiwa.pdfIn PDF document text
- http://hz-kontejnery.cz/ckfinder/userfiles/files/35459608458.pdfIn PDF document text
- http://www.toptehnik.si/images/kijelinej.pdfIn PDF document text
- http://starma.pl/files/file/35432582207.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/65521707973.pdfIn PDF document text
- http://autolubitel-irk.ru/userfiles/file/pumusirinuninifabapifola.pdfIn PDF document text
- http://webinaris.training/ckfinder/userfiles/publics/files/62726710196.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16140c4b807105---80734273802.pdfIn PDF document text
- http://taxplus.in/images/contentimages/files/22470404447.pdfIn PDF document text
- https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/60057699643.pdfIn PDF document text
- http://myappartement.de/web/editor/files/getasopipitedunitodikamas.pdfIn PDF document text
- https://debo-fit.be/userfiles/file///17976157375.pdfIn PDF document text
- http://biznesfishki.ru/files/userfiles/files/35878228622.pdfIn PDF document text
- http://way-of-spirit.ru/upload/file/xipaselevetobemofujudepov.pdfIn PDF document text
- http://generaltubi.com/container/ckfiles/files/63456352689.pdfIn PDF document text
- https://volandovia.it/public/fileeditor/file/16118125728.pdfIn PDF document text
- https://agrando.cz/files/file/18411501654.pdfIn PDF document text
- http://kaizousha.com/js/upload/files/vosoviremedumurefotamijo.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/6rf5ftmu33e6nje2apcjeq91ou/sixil.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159a67d3f04a---86033736992.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_off0000b072.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB072 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c884.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC884 | 15400 bytes |
SHA-256: e66be66c1bb75bf23bd4636a343f05970b3c85667610a5b7650430cba5402f03 |
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font_02_sfnt_off0000efa6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFA6 | 10900 bytes |
SHA-256: 6627c7688571ba1b7eb6114e450f28d73df51756be75fa673d961af0a0c70ff3 |
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