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 ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories, likely intended to lure users to malicious content. The presence of multiple links on disposable hosting further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16078f040b7f0d---26344660805.pdf
- http://shannonlakeestates.org/fck_images/file/91463059151.pdf
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/f87a6e8d7dce0fec2a8f170bdd52b90d/vefifizutuwuwisumexekaji.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/6261b97603f12af1c9b3ffc5f9fb4815/99847570370.pdf
- http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/rigovetafupivabamu.pdf
- http://domainecomps.com/documents/files/kisuvuzu.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087a4a0df508---75519751593.pdf
- http://gopherandsquirrelcontrol.com/admin/images/file/ronupogobabulenulemopu.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/f1ffce41292aa1b00610692fc2f8ea7b/71242744629.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16078557fac6a8---97639910944.pdf
- http://iswii.net/ckfinder/userfiles/files/44151202368.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c8803080ed5---pifevebi.pdf
- http://sys-svinding.dk/userfiles/file/56025745956.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160775a21c777f---putedorugilaj.pdf
- http://www.urbanwaterways.info/files/kelivuzebamunumunazug.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b889dc1a8cd---96576217755.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/ddp31vrpbbe8nu2jsc3d1pj0vc/34667146772.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/deefb16fe24ba9bcc3b4a922c49648c9/rufaronubefap.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607e78acb0a0a---82278383113.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/acm1q61d78me46bkup7cc04a17/duvaxebevixe.pdf
- https://stalbeckers.nl/userfiles/image/file/72384426269.pdf
- https://wemservice.com/ckfinder/userfiles/files/jipelerini.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=resistant+starch+content+of+foods
- 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_off00010593.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10593 | 16792 bytes |
font_01_sfnt_off00011daa.bin179aca299f4f62e7a145415be5294328a89177e78d04b348488c2956c2a35c40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DAA | 10572 bytes |
font_02_sfnt_off000135bd.bin8d68ee83ebfea39135e57bfe823199c2339aa30f095e0d528fb6e63abee300df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135BD | 16316 bytes |
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