MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to various external URLs, some hosted on compromised CMS uploads, suggesting a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://classoft.ro/userfiles/file/gemuvul.pdf In PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/fadiregotad.pdfIn PDF document text
- http://chinalabware.es/d/files/volaresesali.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/75101d3103611e657ea23d65912ab4b4/dijisorasefurimel.pdfIn PDF document text
- http://remproekt-m.ru/admin/ckfinder/userfiles/files/luzuzogo.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161380cbf2c809---favazajotamifebivotewaxar.pdfIn PDF document text
- http://artgrafika.cz/userfiles/file/tikomanokov.pdfIn PDF document text
- http://balbu.eu/uploads/news/file/58733988855.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210912_004728.pdfIn PDF document text
- http://www.ezmoving.com/file/14759838885.pdfIn PDF document text
- http://hfnhsw.com/upload/files/82520930295.pdfIn PDF document text
- https://cincia.ro/ckfinder/userfiles/files/2782187564.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16310572656514.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613034acd656a---sagekugezesoredimosilaf.pdfIn PDF document text
- http://medicare-darmstadt.de/bilder/UserImages/file/45834215154.pdfIn PDF document text
- https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/tofoguzibuja.pdfIn PDF document text
- http://burelomdo.com/ckfinder/userfiles/files/mijadebusumezanid.pdfIn PDF document text
- http://dxqzx.com/ckfinder/userfiles/files/20210903_120315.pdfIn PDF document text
- http://japhina.com/upload/file/gusifejar.pdfIn PDF document text
- http://domosplast.hu/files/file/dobufebuzule.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/73468675188.pdfIn PDF document text
- http://damosushipleasanthill.com/uploads/files/zuzusimuzemit.pdfIn PDF document text
- http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/60476154007.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+can+i+check+my+profile+visits+on+instagramPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/078d8ec64dc19db23949f03b1abd5598/64925752151.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_off0000dfab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFAB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7BD | 17652 bytes |
SHA-256: c3124d490c8354b7610d0fdbefa73103ad2103d36bd70717792671f7670fd63e |
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font_02_sfnt_off0001253b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253B | 11276 bytes |
SHA-256: 3780ad0cddeaabe87edc63fedb2b9087b4748e094a90ebf9daa458cd3066e5cf |
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