MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to numerous external URLs, many hosted on compromised WordPress sites or disposable domains, indicating a likely phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/jebojexolemopaxab.pdf In PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086ba89db5c7---tegeridiwinula.pdfIn PDF document text
- https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/4f09bb97c2714f6ebc144f48953053ae/nazuroniku.pdfIn PDF document text
- https://aspaeng.com/files/image/files/lifagiliravuburapo.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec33d92765---64196155178.pdfIn PDF document text
- https://emmaushuis.org/pages/ramugufulibakibux.pdfIn PDF document text
- http://sonkertrail.org/clients/9/92/9260a3c387aed4615f72c72c3a1da295/File/28124913464.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/komilulibiwajakixaz.pdfIn PDF document text
- https://butterfly-propertymanagement.com/userfiles/file/zisovagima.pdfIn PDF document text
- https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/8099662344.pdfIn PDF document text
- https://myreply.mobi/snappshott/editor//file/67012479159.pdfIn PDF document text
- https://sibservis.com/ckfinder/userfiles/files/pexewurizurigo.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d6ca02448---59720409183.pdfIn PDF document text
- http://clinicaveterinariagussago.com/userfiles/files/mozoxube.pdfIn PDF document text
- https://alyansdugunsalonu.com/userfiles/files/70371574080.pdfIn PDF document text
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/relelabivilaxuvol.pdfIn PDF document text
- http://altaprecision.com/userfiles/file/35624268653.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5a6228c74---61714926144.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160983922db56c---sopopilu.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ac71345148a---66341402070.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/n3ck9cgtfre2j7u3in6o87o1ic/31557403375.pdfIn PDF document text
- http://quangcaosms.org/media/ftp/file/bufutexobinusabeteto.pdfIn PDF document text
- https://chandrakantmusicacademy.org/ckfinder/userfiles/files/nuwujotakefane.pdfIn PDF document text
- http://kimbuunguyen.com/uploads/userfiles/file/6435663922.pdfIn PDF document text
- http://csss77.com/clients/d/df/df7f2fdc42e243c7a03c192a8228c0be/File/94788306178.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=ecuaciones+racionales+3+eso+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cb4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4B | 10768 bytes |
SHA-256: d5f3293f7d4002c8e972252054ceb68a057ebabac1b511d037f9f8ec877bfa94 |
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font_01_sfnt_off0000e429.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE429 | 17768 bytes |
SHA-256: f642428031f91abf486f5d6875ccd3acd1fd82edc42cb3f9b5b839d06f4f5e1b |
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font_02_sfnt_off000110eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110EB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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