MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics points towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://krisoc.ru/uplcv?utm_term=spanisch+anf%C3%A4nger+%C3%BCbungen+pdf PDF link annotation
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/2qkn17ds40160r526l473lf7a9/fodemixim.pdfIn PDF document text
- https://advantagelic.com/singhania/downloads/file/96519988654.pdfIn PDF document text
- https://akemi.ro/hirek/file/wokujavamobakanuvipepe.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/vf1r98hinn9fuabhs5kob2pc99/paberomilosuditerazinuko.pdfIn PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffb10d0770---jososibebigup.pdfIn PDF document text
- https://webmenuplus.com/images/file/juwamamoxamijuxo.pdfIn PDF document text
- http://kmkonsult.cz/userfiles/file/51231439131.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/50da3a67b841ab1dec91b8d85c06fccd/78091272131.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/lepat.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec4dea53a3---41459159153.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/klknqsgnkbp136dq82i59n8kpo/6319779527.pdfIn PDF document text
- http://salsainkonstanz.de/media/files/rerutof.pdfIn PDF document text
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16089a43f6596f---laxedepejaxirubimewuw.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bb3e2baa040---rixokononil.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/c4587267f9751fe09a4dcf3e7d539d39/82478208880.pdfIn PDF document text
- http://medob.org/SITE/files/editor/file/95331978017.pdfIn PDF document text
- http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kaxodilojaladix.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d122ed617e---52020244502.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083158e01a5a---pamedupasik.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4b6cbad5aa---gusena.pdfIn PDF document text
- http://thegioinoithatcamranh.com/media/ftp/file/zelusebuwor.pdfIn PDF document text
- https://businesslife.com/content/files/juwirukitulutetolutir.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7cf8759a87ec2b53723db2233f1e4dbd/37397061215.pdfIn PDF document text
- http://princeton1959.com/clients/863834/File/73008852341.pdfIn PDF document text
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836c770e7a2---90465503999.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_off00011d2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D2A | 11396 bytes |
SHA-256: 23cdecfb290b605542d14f19cd3580776bc6f32a780866c5c63be77df6e812cd |
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font_01_sfnt_off0001368f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1368F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014ea1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EA1 | 20484 bytes |
SHA-256: 7a8bcb10a65698640648b6285af578457f0e905a85e4d3c2bd5789f0a6be39ac |
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