MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on disposable domains, a common tactic for phishing and malware distribution. The embedded JavaScript stream and ClamAV detection indicate malicious intent, likely to deliver a secondary payload or redirect to a phishing site. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://svenskafik.se/uploads/fckeditor/file/76546945148.pdf In PDF document text
- https://machnik.net/ckfinder/userfiles/files/4399500483.pdfIn PDF document text
- http://wlpp.net/images/blog/file/86851848272.pdfIn PDF document text
- http://madveras.com/ckfinder/userfiles/files/88884953141.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/dixetemo.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/161344dc2000bd---jolejegosonitiko.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/92955260941.pdfIn PDF document text
- http://huzatfokozo.hu/editor_up/79904846590.pdfIn PDF document text
- http://phone-server.com/userfiles/file/24966822558.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/11a100875113933dd09050d889aefee6/vuzumizepate.pdfIn PDF document text
- http://cwpni.com/userData/ebizro_board/file/41552040245.pdfIn PDF document text
- https://ietc-oman.saktoon.com/userfiles/files/92057138212.pdfIn PDF document text
- https://illustrations.noche.fr/images/files/18578393273.pdfIn PDF document text
- http://vning.net/filespath/files/20210904202227.pdfIn PDF document text
- http://korea-labels.com/ckfinder/userfiles/files/vajekefavaduxobunuxok.pdfIn PDF document text
- http://ihdbd.org/upload/files/fiserekufasuserame.pdfIn PDF document text
- http://geraldinekilkelly.ie/17726657179.pdfIn PDF document text
- http://antonioruizabogados.es/userfiles/file/didagigex.pdfIn PDF document text
- http://boxethai38.com/upload/file/wizefumuweferolafob.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b49bed4948---keligutuwepazakinir.pdfIn PDF document text
- https://octvads.site/js/ckfinder/userfiles/files/48303747194.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16133e98f573f4---228533142.pdfIn PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/54297901569.pdfIn PDF document text
- http://jiangsutravel.kr/userfiles/files/20210904_072215.pdfIn PDF document text
- http://1utilaje.ro/mm/file/biketosixat.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=sat+math+guide+pdfPDF 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_off0000f177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF177 | 10584 bytes |
SHA-256: 8092e05aeab8e88a606026af891b4d808bd8876931fa5ac68080c2f5a21324d8 |
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font_01_sfnt_off0001096c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096C | 19228 bytes |
SHA-256: d3472faef3865c1d67ebca0c3f61a40447a7ee0335a034a1ebee7190bfe6b90d |
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font_02_sfnt_off00013bbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BBB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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