MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The presence of these links suggests an attempt to redirect users to malicious sites or to manipulate search engine results.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://crewmak.ru/uplcv?utm_term=video+link+to+audio+converter+online PDF link annotation
- http://werkschoenenverkoop.nl/images/docman/files/bixupevoboxadaxevaxom.pdfIn PDF document text
- http://lynxitservices.com/ckfinder/userfiles/files/76056465231.pdfIn PDF document text
- http://rovitek.com/userfiles/file/20285533686.pdfIn PDF document text
- https://ceccardolj.ro/userfiles/file/30749495525.pdfIn PDF document text
- http://hawaiisushi.iorderfoods.com/uploads/files/nizamo.pdfIn PDF document text
- http://salsainkonstanz.de/media/files/77078015815.pdfIn PDF document text
- https://ripedesign.com/app/webroot/files/fckeditor/file/52571291149.pdfIn PDF document text
- https://www.pension-chevaux-haras-gabereau.fr/ckfinder/userfiles/files/vukef.pdfIn PDF document text
- http://bloemenwinkelindex.nl/images/uploads/17575243756.pdfIn PDF document text
- https://tidymoney.com/ckfinder/userfiles/files/49693380622.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210904180017.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdbb77ceab---84937679071.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/26234697729.pdfIn PDF document text
- http://www.pranabkumar.com/fckimages/file/tupanelivufexipowuxonoxev.pdfIn PDF document text
- http://paraleumarian.ro/app/webroot/files/userfiles/files/43770170033.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16136320a4b920---55444229985.pdfIn PDF document text
- http://papierplus.pl/userfiles/file/66834548.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/nazoreruranupin.pdfIn PDF document text
- https://nayyaralidada.net/alpha/ckfinder/userfiles/files/juwepekenizi.pdfIn PDF document text
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/tavafejurukojum.pdfIn PDF document text
- https://lawweb.info/mycms/admin/userfiles/file/56875004436.pdfIn PDF document text
- https://aqua2go.pl/galeria/file/fuzupaza.pdfIn PDF document text
- http://goksirlambinowice.pl/img/upload/files/nezafutubomurenodukoxidiz.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b211a31768---74959335445.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_off0000b092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB092 | 14908 bytes |
SHA-256: 703de1daff730ab78a78a48ec78003614c53c3c85fecd8416a778a234001caba |
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font_01_sfnt_off0000d66c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ee83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE83 | 10424 bytes |
SHA-256: 0d5dfee3e6c60eff856c41a3212457f9beb611e606d673cbbfad60659ae77816 |
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