MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The document's structure and embedded URLs are consistent with attempts to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://ketchas.ru/uplcv?utm_term=text+height+scale+factor+autocad+metric
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1610c4c9c---20782732613.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d42e93f486---11764629276.pdf
- http://vankouwenenmastop.nl/UserFiles/file/bafapudutataruf.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/747bfc22e08c4c29f763034030f788ec/xiriv.pdf
- http://anhuizpyy.com/upload_fck/file/2021-6-25/20210625055144385620.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/4ddfe9828b83937cb730d3b5015be6c2/81371313661.pdf
- https://africanresearchcenter.com/userfiles/file/1268017212.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c0851a200e7---gaguxakomuraximaguze.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8ecb74e0e---dowozegapegozimatibipajas.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607228b0b8b7a---72099832470.pdf
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/2e7b87f36975db97fd8ef1e08b7ad5e2/24077724254.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b7d2302d0---38469918834.pdf
- https://chiuman-hk.com/images/file/tapetubejedorinube.pdf
- http://anaminfo.com/attachfile/file/xepijivi.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092ceea48643---wodofijopuromisorim.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943d251c4cb---76758422584.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a677846463c---33523293897.pdf
- https://securityguardsupply.org/php/uploads/file/86940553589.pdf
- http://www.aadhar-interior.com/userfiles/file/vetazaxuzuradasarokopi.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_off0000e730.binda40b722cc5dfb13f0929a7a4956ff60ed3e81f0c2810d884737077064aa6b4b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE730 | 10984 bytes |
font_01_sfnt_off0001008f.bin312d8379ffb658ab407c364adfa21f88ebd619ace36f016d64d65085a2646b1b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1008F | 17268 bytes |
font_02_sfnt_off00012d98.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D98 | 16792 bytes |
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