MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript and a significant number of external links. Several heuristics indicate that this PDF is part of a link farm hosted on compromised CMS uploads, likely designed to redirect users to malicious content or phishing sites. The embedded JavaScript, while not fully analyzed due to obfuscation, is a common vector for further exploitation in PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://pistant.ru/uplcv?utm_term=mod+apk+stickman+ghost+2 PDF link annotation
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613aad5787684---34318023543.pdfIn PDF document text
- http://aiaato.com/FileData/ckfinder/files/20210918_78458B14A3246C4D.pdfIn PDF document text
- http://whatdwellswithin.com/file/jedupavakipamiturekawe.pdfIn PDF document text
- http://agroanaliz.by/upload/editor/files/28382243199.pdfIn PDF document text
- https://airin.lv/images/userfiles/file/30688188491.pdfIn PDF document text
- http://stin-verdon.fr/assets/Image/files/lewixatiwamesezol.pdfIn PDF document text
- http://marklaliberte.com/fckupload/file/modenamoluwamilidug.pdfIn PDF document text
- http://araratmebel.ru/img/file/rijerip.pdfIn PDF document text
- http://leeharringtonhomes.com/userfiles/file/kafukawovagavisowoleluro.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134542bdfa9b---tizewugumir.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb7e5a7ab5.pdfIn PDF document text
- http://baltic-rt.ru/ckfinder/userfiles/files/vutelafabaweneneriredapun.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/4951309287.pdfIn PDF document text
- http://americasbestmanassas.com/uploads/files/15211066326.pdfIn PDF document text
- http://clubesquilacoma.com/uploads/files/81963830743.pdfIn PDF document text
- http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210914134503825937ekjixr.pdfIn PDF document text
- http://flagrant-desir.com/userfiles/file/tuperuv.pdfIn PDF document text
- https://pakianco.ir/data/image/uploads/news/files/18121270872.pdfIn PDF document text
- http://sayarbobinaj.com/file/tugola.pdfIn PDF document text
- http://cimkezes.hu/uploads/ckfinder/userfiles/files/muxupowabefugakifuzi.pdfIn PDF document text
- http://pilot-market.ru/new/files/file/lutinudalufirujik.pdfIn PDF document text
- http://krallarintavugu.com/upload/file/bubapu.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_off0000e8a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000100bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100BF | 10888 bytes |
SHA-256: 2f797ae92a86007b32b41db1b75a19851c41ddd20aa773bb26a5eff6ceb59b58 |
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font_02_sfnt_off00011997.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11997 | 19924 bytes |
SHA-256: d8e6e1c38d86b793768cf896a2beb8b474725f92cc36a60b4f96da17851bc6e5 |
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