MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to various PDF files hosted on potentially compromised WordPress sites, a common tactic for distributing malicious documents. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is designed to prompt the user to make a phone call, characteristic of callback phishing or tech-support scams. While no scripts were directly extracted, the presence of embedded URLs and the ML classifier's high confidence score suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://abacusnancy.com/userfiles/file/domowunewi.pdf
- http://alessandrobelleseveterinario.eu/userfiles/files/5135605500.pdf
- http://yuhenganquan.com/userfiles/file/20210702002801_1168091627.pdf
- http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58313157714.pdf
- http://kuppersbusch-center.ru/uploads/files/jasujutikimap.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160be22b86f838---zojepivanegobolimopot.pdf
- https://poolpoint.be/uploads/file/sabazipar.pdf
- http://files.ibiza-ferien.de/file/82775781647.pdf
- http://biomassasia.net/data_ed/userfiles/file/68693297684.pdf
- http://mitsubishilongbien.vn/images/ckeditor/files/nazar.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4297abcb0---pezejesola.pdf
- http://cuatudongsaigon.vn/uploads/files/41611966988.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160869db9051d6---77247651034.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/d15512fe426f4c8bc5d1f943d9c90b24/goxijukezewif.pdf
- http://videofilm-tv.ru/content/File/tagaturokewoxidewomevip.pdf
- https://espaciocultivarte.com/ckfinder/userfiles/files/46532363782.pdf
- https://psystat.net/candyticket/uploads/page_images/files/vaxapa.pdf
- https://evermoral.hk/upload/file/1624965439.pdf
- http://www.agenbenangbandung.net/file/tukizekaxuzisepexeme.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16081aba81e5b3---gukalunetilezaxiwewifodi.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609693824193c---jojageduvexudur.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9926541026---fijalekejowijuxozujudozo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=one+pound+wings
- 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_off00013153.bind392484dfe9b661a202770240f8acf9034823b06a8caeaee7eead19d0ca1937e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13153 | 10372 bytes |
font_01_sfnt_off000148b3.bine59e8e6415b83eca6d545aeac37e79d5e5b495622af272967382c01c728a1849 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148B3 | 17476 bytes |
font_02_sfnt_off000175e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x175E8 | 16792 bytes |
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