MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ClamAV as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to obscure the ultimate destination. The presence of embedded JavaScript further indicates potential for malicious activity, such as redirecting users or executing further exploits.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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 https://siahotel.com/userfiles/files/wimofanix.pdf In PDF document text
- http://lnshiyue.com/userfiles/file/20210718072825_1906876903.pdfIn PDF document text
- https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/sazokazirogavoporejowo.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16079be8d698ea---tanuzumil.pdfIn PDF document text
- https://garnet-medical.com/userfiles/files/debexinefabijarabadeze.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b57b1981a---ribifusoguzofiz.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfaef9fca7---mugiwikasowaju.pdfIn PDF document text
- http://gtlmarinefuel.com/userfiles/file/gejazixiwukepedemi.pdfIn PDF document text
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/pc5mk80fqatm75ldlotc6k50o5/bumilakiwofosevafosafilo.pdfIn PDF document text
- http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/92717162088.pdfIn PDF document text
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/f600d4ab733a4669c49e3e304ab7921f/japevatutiwuzozejep.pdfIn PDF document text
- http://grandp.ru/userfiles/file/49985715241.pdfIn PDF document text
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/genavimoxavuvipama.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/t9renuar1s1jvifc7542hc26f7/90530855350.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4868bb64ef---peresiwogerujirabe.pdfIn PDF document text
- https://infypos.com/infyposcms/media/96648291050.pdfIn PDF document text
- http://mobilesamara.com/img/files/file/65685356531.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/2813cd2cf4d782148ebd7aeefd942631/vepumigeg.pdfIn PDF document text
- http://abwfinlay.com/uploads/files/62703333246.pdfIn PDF document text
- http://studiotecnicoarduini.eu/userfiles/files/tuliwetefigome.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/2453ceac10f23ec231997a1397de24bd/97497013313.pdfIn PDF document text
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d706b31bdb---fupubokut.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=meaning+of+petroleum+refineryPDF 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_off000104db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104DB | 10740 bytes |
SHA-256: bc15bd5ee69aa1e6551cbc0849b7b8cdddea70682c8a1bcb8ecdf51b1e1e7a92 |
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font_01_sfnt_off00011d85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D85 | 16764 bytes |
SHA-256: 7ba9558e7fe38d45449b4785f49498b86e48e0bbf267a3ba55ed11929fea20d6 |
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font_02_sfnt_off0001494e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1494E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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