MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery mechanism. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, likely serving as a distribution point for further malicious content. The PDF structure itself appears to be a link farm rather than containing user-readable content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16082159d35328---6635004577.pdf In PDF document text
- http://netdepphunu.vn/images/userfiles/file/xobozi.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/26af7703b3cb9fefc09c354a59930f44/24450206697.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/66145161719.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e28f29aa77---sexaruxujaxadapitamezosaj.pdfIn PDF document text
- http://ned.ru/uploads/files/mawifetazefex.pdfIn PDF document text
- http://fitviewer.info/files/file/98931188861.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16118dbef409c6---51419265917.pdfIn PDF document text
- http://studioarclab.eu/userfiles/files/25286718341.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/6376805888.pdfIn PDF document text
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/vsf1ch3g6c5l9bjnk4sqbpa1hc/98837487999.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f21eb0feb7---poxazomik.pdfIn PDF document text
- https://dlt-nkp.com/fileupload//file/wogevuj.pdfIn PDF document text
- http://www.aamuhsv-madisonalumni.org/files/files/gazorelovesimajinivazubuk.pdfIn PDF document text
- http://tai-group.com/upload/files/86291834370.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16286209306419.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/laroje.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/foo8ev7p2v520v2n6ohf1kam7t/75732007299.pdfIn PDF document text
- http://kdbelektrotechniek.nl/uploads/file/bamizamuwukip.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608240f5cd403---22128500639.pdfIn PDF document text
- https://ourcampuswindow.com/ckfinder/userfiles/files/lenukirinuko.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/pezomulekozagirufubi.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/6l52tu2p6vbmfblmjnleiinnkp/najarex.pdfIn PDF document text
- http://msiutilities.biz/documents/21445191834.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=manual+utilizare+uscator+rufe+electroluxPDF 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_off0001354a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1354A | 18284 bytes |
SHA-256: 0f048759da82baaaac04338cdd4da9040fa2ee43b94bfe1677f041a86ede3899 |
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font_01_sfnt_off00016383.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16383 | 10584 bytes |
SHA-256: ac35c0030770db60357d15d34cebc5e236f36c9e76667abf538fb63984a6d38f |
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font_02_sfnt_off00017be5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17BE5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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