MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of embedded URIs and the nature of the heuristics suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d57d56f5ce---pububugegulanuvamefijoj.pdf
- https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/6c6b0d0f538b79f5ed032378263497cb/rajagutoj.pdf
- https://xanbiente.de/userfiles/file/40681896974.pdf
- http://markasib.ru/ckfinder/userfiles/files/kexunedigososa.pdf
- https://powermailer.in/userfiles/file/93873271413.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160965fda9fe10---13971181649.pdf
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/i4jbl3gqllaic1648i1k5vmnqk/62619178390.pdf
- http://cpspcb.com/uploads/files/99800730672.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/jcemqi4r8hhta98bmvpd8a0l59/tivuzoxejiwarejukex.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a748317f93c---jekakinonabezozoraru.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a1864de14---xapusaduxe.pdf
- http://elazentrale.de/images/uploaded/file/42585410435.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/rji15rm4e6s7bkpdc7fkog9169/rivigikeziwizozeweduk.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b647de29149---linapamarekovi.pdf
- http://eltonltd.ru/sites/default/files/uploads/ziveverigevowagonu.pdf
- https://bouwservicewinthagen.nl/userfiles/image/file/zitowi.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/tnp01db7nrksgi17ihd5j2nt53/29597207053.pdf
- https://seitonsolutions.com/ci/files/34655460629.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/d7jnjjs4qdumvi0opruogklhu7/kukaparaselefurawidu.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/dfa6c7304e3f165a38a666e63d541e9e/31025124132.pdf
- https://advance-pack.com/editor_upload/file/jirodavona.pdf
- http://aaaexpressheating.com/userfiles/file/mususetemexuwoxuturitubuz.pdf
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/5c080a03b0453b88862b136fad43e958/koxuwumipasor.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160747ffc10b11---71223379321.pdf
- https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/b1b3c32a9ba5f7b31d4ffd3bbfd63314/vemudedoditurozadabetiwol.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=words+that+start+with+a+easy
- 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_off0000c603.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC603 | 16792 bytes |
font_01_sfnt_off0000de15.bine7c800a92c617dc3384aadecfd42568af974b584ca1238cb14c6752ede1b9a40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE15 | 16580 bytes |
font_02_sfnt_off00010930.bine4665d7f437bfadbd2ce980513299f78d77c9c28b6551de8aaba44fd50e98de5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10930 | 10388 bytes |
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