MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was identified as malicious by a machine learning classifier and ClamAV, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised WordPress upload locations. The presence of numerous unknown URLs suggests an attempt to distribute malicious content or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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 http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bef5c07a4d2---13525783644.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a256df7330e---97573921233.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/735d5c05f84400fc5e18ccb0eaa87e16/26165328283.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfafa95d64---93724142452.pdf
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9cefc39cb---99114115125.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a80b3b0363---85778614037.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5fe4e2681---futojejilaf.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160982e7687379---mawuwebogagavamu.pdf
- http://mai-colle.jp/userfiles/file/nenusol.pdf
- https://network-italia.it/file/7428024894.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/tq0eglvtu7t21ison6ngr6akoo/32090363237.pdf
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984d1fa10b9---85629209380.pdf
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c85e6fa9eec---kuwozu.pdf
- http://cec-intl.ru/app/webroot/files/file/vovunikibepexelulojagagus.pdf
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090933d761b9---65673161145.pdf
- https://gulceoyunlar.com/calisma2/files/uploads/savaninopowukubav.pdf
- http://asvpp.fr/pdf/finunerilu.pdf
- https://studiovizia.com/webroot/img/content/files/gemumimo.pdf
- http://www.celso.org/download/rukemafawafapejaxik.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/j06hqgja0modmkmhf72qo4j1d6/taxob.pdf
- http://teplospectr.ru/images/files/91002915174.pdf
- http://cjandjunemillerfarm.com/clients/75830/File/90595205734.pdf
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087df52e0137---kenaruxofipukukumimepusa.pdf
- http://stacjaregeneracja.pl/userfiles/file/ditavusevubemagujuvudinub.pdf
- http://growlink.biz/userfiles/file/93669332307.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=determining+state+residency+for+tax+purposes
- 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_off00013ffe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FFE | 16792 bytes |
font_01_sfnt_off00015810.bin2de003b5587cd308c63451c159af25594b6db0490929f717a49d1bc671839105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15810 | 16772 bytes |
font_02_sfnt_off000183a7.bindde1c6d47a7fc68f604f5641242bac915b3c3daf722552e96d05f2054b9ba4bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x183A7 | 11236 bytes |
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