MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of links, many of which point to compromised websites hosting further PDF files. Heuristics indicate this is a link farm on disposable hosting, likely intended to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/c9e36c6225b5fef331f565ab10249800/38253507179.pdf In PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f47d895318---xefajumibev.pdfIn PDF document text
- http://seventyfirstclassof69.com/clients/60772/File/26132427276.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/8a7cda35f1a07352c2c2984bc75b00d6/lesigeniwiz.pdfIn PDF document text
- https://e-uchebnici.com/img/file/15798506731.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/c1273c435b8b661ac5108f7cbc9c467f/bajiripesesaxizi.pdfIn PDF document text
- http://littlefreddieking.com/clients/65037/File/55701945474.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/dabuketorakovadoxuxoxopor.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/89804489781.pdfIn PDF document text
- http://malopolskiszlakwinny.pl/upload/File/zesenaze.pdfIn PDF document text
- https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/44611399412.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/s3n6fkikmljqmd0objkcnvtbg1/30375887104.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/a559a74aab34940f2e932af259765ae9/15230166179.pdfIn PDF document text
- http://ligonfamilyreunion.org/clients/9/9a/9a44987365eba454cd9b2deda39aa7c0/File/tagowarakadivosupulufam.pdfIn PDF document text
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1b23840db---90980899812.pdfIn PDF document text
- https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/4f3c0aba6443dad508b50fe02669dfce/xewunawofirodatewigokebed.pdfIn PDF document text
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/d8027bda3788171e587c187d48c50553/47524553185.pdfIn PDF document text
- http://spiregene.com/image/files/20210630_001927.pdfIn PDF document text
- https://k-barrierfree.com/FileData/ckfinder/files/20210704_F5F08706488F05E6.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/30b17abd82911398d8b1cdf584410e2f/48710875989.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080a3688db4c---12389739561.pdfIn PDF document text
- https://sarujiovalente.com/wp-content/plugins/super-forms/uploads/php/files/m9an8pcem5bm746b58mii2qr3u/getamodo.pdfIn PDF document text
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160926df91b323---lodegisomitaturijemikebi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=cool+chrome+extensionsPDF 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_off00011b3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B3B | 17576 bytes |
SHA-256: c26626f2a191c3f4add4668ba721025e8b84bd72fbdb7b80979dc84ba038af43 |
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font_01_sfnt_off0001492d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1492D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00016144.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16144 | 10464 bytes |
SHA-256: 0dad8602d0e1cf51eb92b522b6e329b0526f037cad251b3a37cd6adf9c28b396 |
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