MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and link farms pointing to compromised WordPress upload directories, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a lure to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://smidgel.ru/uplcv?utm_term=songs+to+start+the+school+day
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16094634a21742---43894475790.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a61179b6e5a---jemusuwenegi.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ee2a7d56d---borogitagozarebo.pdf
- http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bedasuroxekomakunoraf.pdf
- https://store-connector.com/_upload_bilder/_filemanager/file/6247150023.pdf
- http://akcjonariusz.com/UserFiles/file/43788382528.pdf
- http://crabandclaw.com/uploads/files/94298572220.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae8094b85d7---1586094590.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/9d3b5okjdu7em3jk6vdnbncj27/risilifanewotetivipuwuri.pdf
- http://taikenplan.jp/ckfinder/userfiles/files/88122279061.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6d2ce1420---vajomumavokigokafo.pdf
- http://kiavysocina.cz/UserFiles/File/6002656699.pdf
- http://autoshiftbid.com/fckeditor/userfiles/file/koxigogesivoxavoxuzin.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/n87qpv06iggs3o0f8a6bogj0k0/worojanin.pdf
- http://intergeored.com/upload/File/61639406644.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160736a585b569---89396647147.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1609acc3583833---40583957612.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8eb08c729b---gasuxovajurenirewerudug.pdf
- http://danfilenemd.com/clients/67744/File/72105901687.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b613f97e31---dopogotobeki.pdf
- http://glamour-nsk.ru/ckfinder/userfiles/files/20661218255.pdf
- 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_off0000e0ca.bina21fef50678089716e2ba910b260e247acab4e2e913a2291a9e6051bb6f04b81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0CA | 10748 bytes |
font_01_sfnt_off0000f942.bin76afdb8f992f03f306deacca4883a6e1aea804ec5c56090b012a8f501cb06cca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF942 | 16868 bytes |
font_02_sfnt_off000124c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C4 | 16792 bytes |
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