MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to compromised WordPress sites, which in turn host other PDF files. This structure suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 6
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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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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://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/i5s8gk3pk9bf1mq8hai04bprl0/gawokenupo.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/5b4bc1c6b98b512561f9dad2bc6078ac/81533590902.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac25e3d009d---50375440626.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984cbb350be---dadivukozibijezutukur.pdf
- https://aimara-bg.com/userfiles/file/subafigekemik.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b488045edb2---bedizesebibasinagefu.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160822a11b32c2---lofufe.pdf
- http://toonesk.com/upload/65329246402.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/2q4di2g553jbjlpif2kdpim50c/94310387833.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/tfu56l6hjf9oqnngp0sncjn995/rivupito.pdf
- http://hevolta.com/upload/file/39032629131.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16085cca823674---10662944727.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/040dff804393b312e92a6106ae8739f5/93561015578.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac657e4dd9---28383186050.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/ircnl6218lq4mm8itvcd7uc2ej/61839145017.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d536b7fded---87395978479.pdf
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160711813edb6e---dowedobiwej.pdf
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/5184c8085ba4e33c9c601413f4014099/48014211898.pdf
- http://infinity-pro.ru/userfiles/file/40297665784.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa472a8d36---kovegugobep.pdf
- http://lyzebrno.cz/userfiles/file/wokasanodoris.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/f7d095fabab60475f4a9cb53c0701b12/lisig.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8e6b20149---monulogoxifixuga.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=formula+for+a+right+circular+cylinder
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fab523907fae1dac631bf858ebe48b31/58314240262.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_off00010c13.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C13 | 16792 bytes |
font_01_sfnt_off00012425.bin95a10ae4d4d6a45b974c7135c62a27efc7b27a6901f05ec372409ac38d39f513 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12425 | 19440 bytes |
font_02_sfnt_off000157ce.binbe5d75d9b53471dd01ba2d2e4194e7bda9dc86643f0a8ab1085520a9dd23bf72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157CE | 10944 bytes |
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