MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised websites, suggesting a link farm used for phishing or malware distribution. The presence of 'utm_term' parameters in some URLs indicates a potential tracking mechanism for phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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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 http://esipro.lu/userfiles/file/40541758869.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b98d1ba53---67312125428.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aecf680e27---77984954047.pdf
- http://whewfamily.com/clients/12004/File/11864493773.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16098442fe9eae---dekadunikovigaxofadipaw.pdf
- http://iseveranscopy.com/upload/editor/file/73917415076.pdf
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/34203308734.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bea2a228ac.pdf
- http://kaithompson.com/userfiles/file/belapidizivegi.pdf
- http://driscollandgibson.com/images/edit_images/file/pizuguretovobajevenub.pdf
- https://tecnicadovolante.com/images/file/68109380837.pdf
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a8426a08003---bopetoriwavedod.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d2f0ccb80---komijafikegerimizag.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/ba331047da84539d9d227640ac54c4e6/tegowi.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160705637ec541---guxalumovitaxezupilovezuk.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a023620f7---70152772765.pdf
- https://fullmagicweekend.com/ckfinder/userfiles/files/16779951033.pdf
- http://al-farh-iq.com/upload/userfiles/file/20643122477.pdf
- http://nowator-zpu.pl/userfiles/file/57790558285.pdf
- http://pphu-joanna.pl/fckpliki/file/gozabazegekimul.pdf
- http://studioprogettoarchitettura.eu/userfiles/files/16840319095.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1608a55bd6c007---pixuwedifuxufuwuxesirip.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ae07ae807---terawanovizinomakojo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=shooting+pain+in+leg+and+buttocks
- 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_off000165d3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x165D3 | 16792 bytes |
font_01_sfnt_off00017de5.bine4667e602a56fe1a82dfb7f39106622381f622c9dfadfeebf8e6a4bd9e718324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17DE5 | 17148 bytes |
font_02_sfnt_off0001aa95.binb1a8c583ad7c17fd86d152254d85988e90433d820cbacd9014fca33de48043b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AA95 | 11100 bytes |
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