MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to various websites, including those hosted on compromised WordPress installations. The presence of 'utm_term' parameters suggests an attempt to track user interactions, common in phishing or spam campaigns. No scripts were extracted, and the document body was unreadable, but the heuristic firings strongly indicate a malicious link distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=talleres+de+manualidades+faciles+para+ni%C3%B1os PDF link annotation
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106151845093626.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b19a16868cf---98684011445.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e044fd85f7---2017791233.pdfIn PDF document text
- http://rlmlaw.com/images/edit_images/file/79921954743.pdfIn PDF document text
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ee765b8dc---faxuxi.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf5e7caaad7---jimiwubozoferupenufebeja.pdfIn PDF document text
- https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/25c119f278696acf5722c5e4e6f33ee7/61795838698.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a28f5c30c2---95289074436.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3caa89715---kesuwelobibapebugiz.pdfIn PDF document text
- http://chithanhplastics.com/uploads/userfiles/file/xisugiduwil.pdfIn PDF document text
- http://111-orte.de/testarea/cwsCMSlight/media/files/rovomopikese.pdfIn PDF document text
- https://b2b-intelligence.it/uploads/file/96345798690.pdfIn PDF document text
- http://apexnepaltravel.com/userfiles/file/19423933581.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b301674c04---peniladuzopiposawimabenen.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/kuxejiz.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/d51286ad7e75a59d25719c8c14b92dc7/7431014419.pdfIn PDF document text
- http://markfarolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rozajutisapod.pdfIn PDF document text
- https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/it391mhq0g2n8gmijiaovu3k9g/18668218471.pdfIn PDF document text
- http://prime-standard.com/piceditor/file/dadiwenezasubed.pdfIn PDF document text
- https://lapakunited.com/contents//files/lotilafonevid.pdfIn PDF document text
- https://cissud.it/uploads/ck_editor/files/jawalisemesaxedebelufuzo.pdfIn PDF document text
- http://albertopizzetti.it/userfiles/files/laxatisakofepazixo.pdfIn PDF document text
- https://euroroma-bg.org/files/file/xupesabuvuno.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160838213d1c4a---donipukapuzolifakit.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f214db11f5---jogevifar.pdfIn PDF document text
- 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_off0000dfd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7ED | 10952 bytes |
SHA-256: 97916a161a5ea64c0ba1e451be0a75bb8f8776270023d848a0ffe1dc12ffce3e |
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font_02_sfnt_off000110fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110FB | 18632 bytes |
SHA-256: 216f747bbed3b63ca141dcddea339ed294386772536b6a048621d2480b92e598 |
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