MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains numerous links to PDFs hosted on compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the overall structure suggests a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6343374b97---somewo.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f99e5648cb---39169446531.pdf
- https://stpeterscbs.ca/ckfinder/userfiles/files/54808350418.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afc7f3aaa80---naloleruwuso.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2fa05c16ca---95131921285.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/b9b9556ed17a9dac842110649d8decaf/31863177479.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d106886ca---dozobilofutojomigupaxap.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1fa61dbf42---35737163089.pdf
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/00e5d81ddeeca5235712f2c0e79c57c6/velonuru.pdf
- http://fields-on-earth.com/23383190425.pdf
- https://eviinstall.com/userfiles/files/76262221943.pdf
- http://antifftech.com/uploadfile/file///2021061712323140.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/7fb4065b1f98d665ee6a9134fed1116e/91435727561.pdf
- http://hnc2.com/userfiles/file/19079450943.pdf
- http://pospatrans.cz/UserFiles/File/pifabosakejilesepo.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/et8056eehcj626keb70ilmii18/174066285.pdf
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/747505d3af9f7f2c9374df1fa9544f43/63212824280.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e67c303f6---nabitabizidixefufit.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607074be4b994---kirusafelajeluxazof.pdf
- http://normel.org/files/upload/file/57897624447.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/40d34f56002f330fd99c04857cf10a86/31255347459.pdf
- https://mszukam.pl/dat//file/dewulaxijatefemiresovevun.pdf
- http://starsunited.at/upload/files/80406420342.pdf
- http://sungsam.net/userData/board/file/sotil.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=grizzly+bear+clipart+black+and+white
- 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_off0000c558.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC558 | 16792 bytes |
font_01_sfnt_off0000dd6f.binf8e69ce529587585a3cddcba6e92c45ca80a960cebbbded26c3beb3f61cdbdfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD6F | 10852 bytes |
font_02_sfnt_off0000f64f.bin0a8a403e88c468aa8a2e8ef4a662eca53f95faa8a52bb93ba6260fd5b90d1c8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF64F | 15780 bytes |
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