MALICIOUS
164
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. It contains numerous external links, many hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this. While no scripts were explicitly extracted, the PDF structure and link farm nature are indicative of a phishing or malware distribution attempt, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://chcial.ru/uplcv?utm_term=can+you+check+who+views+your+profile+on+instagram
- http://www.terresdescaraibes.fr/file/gixizavimojela.pdf
- http://phantasos.org/userfiles/file/91166259851.pdf
- https://eastmangroup.org/ckfinder/userfiles/files/bepenefixomom.pdf
- http://herningbadintra.dk/app/webroot/upload/files/tepifuwope.pdf
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/lenanevofe.pdf
- http://kvarkeno56.ru/userfiles/file/zibowozub.pdf
- http://scuderieverdina.it/scuderia/userfiles/file/51651024858.pdf
- http://bisenzia.it/userfiles/files/poziwukapitipovenop.pdf
- http://ztkammer.at/uploads/file/73401973680.pdf
- http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/14791340374.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161303b100d470---janepaxuxirule.pdf
- https://cowichanmusicfestival.com/userfiles/file/62722048806.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/24164780204.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16144860030cd6---niwiraninukekexiwojoderof.pdf
- http://cp-1.ru/userfiles/files/92255866683.pdf
- https://yodishit.com/uploads/userfiles/file/86598379666.pdf
- http://gesundezellen.de/neu/userfiles/file/26526881188.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b05ef1322f---tubipenuvuta.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/e7c7ab1be3fba7698e8fe9646e72aea0/8342139096.pdf
- http://htk2.altrodesign.eu/ckfinder/userfiles/files/8900809257.pdf
- https://bazab.ru/ckfinder/userfiles/files/risil.pdf
- http://adhunikjewellers.com/ckfinder/userfiles/files/31302428488.pdf
- https://doluhosting.com/calisma2/files/uploads/42363602335.pdf
- http://ecompletecontact.com/ckfinder/userfiles/files/20142811830.pdf
- https://motodubai.com/uploaded_images/files/66897774638.pdf
- http://sanxuatbanthinghiem.org/app/webroot/uploads/files/zelomivudixuwavexud.pdf
- http://immobiliareborghi.com/userfiles/files/92692513627.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e63d.bine9cb8cbcc3f1d0ac5c36e8561696c48ba978c2dc8d235d4748b0a699f49fcb93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE63D | 11416 bytes |
font_01_sfnt_off0001011e.binace8de7dda5bf0c536631f9d27e1648d540b901073899c836cc57e97fdb997f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1011E | 17724 bytes |
font_02_sfnt_off00012e6a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E6A | 16792 bytes |
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