MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload storage, suggesting it functions as a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1608889e0a199e---bebopolutusavalug.pdf In PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b239bfa5237---82586141011.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb1aeabdba7---33870897162.pdfIn PDF document text
- https://lemanssrl.it/file/36780227766.pdfIn PDF document text
- http://canxetaidientu.com/images/file/20117367768.pdfIn PDF document text
- http://cpspcb.com/uploads/files/31475426491.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e386446f9---welajoxisewuzana.pdfIn PDF document text
- http://greenbiotech.vn/uploads/userfiles/file/56996278961.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a53553e131---zuseduviw.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/e4093c3a7713a14ec4ee8705668f3579/4015876695.pdfIn PDF document text
- http://oasis-inwaste.asia/files/file/tawuvitogegalita.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc0dbb9bbd---42065728468.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/53e7c49a5ecf0fea942f4bf9affb5195/tojeboguvalapibadake.pdfIn PDF document text
- http://startent.ru/SITE/files/editor/file/jidox.pdfIn PDF document text
- http://teleserviciomalaga.com/ckfinder/userfiles/files/9393645140.pdfIn PDF document text
- https://incasur.org/temp//files/tixegifuxidulu.pdfIn PDF document text
- http://fiumevivo.it/userfiles/files/jidimebewis.pdfIn PDF document text
- https://endobible.com/userfiles/file/96175245532.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/48889082444.pdfIn PDF document text
- https://stancijanegrin.com/UserFiles/files/figudubixasefidedar.pdfIn PDF document text
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/625edbe7833ee5defbb81a3f601ff066/95354583324.pdfIn PDF document text
- http://prefinancovaniehypoteky.sk/res/file/99489036607.pdfIn PDF document text
- https://grup-insaat.com/userfiles/file/13890976570.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160766d28a170e---zajixujafuputixasuj.pdfIn PDF document text
- http://strategie-online.net/catalogue_dynamique/file/88879243434.pdfIn PDF document text
- http://cokhihoangvinh.com/uploads/userfiles/file/8024504697.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=ibps+po+notification+2019+pdf+addaPDF link annotation
- 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_off0000e8f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8F3 | 10888 bytes |
SHA-256: b70a735c18abdeeca2f8b432c585a9b3ebb36873f5a2d1adebf9d3376a9a9fe1 |
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font_01_sfnt_off0001021f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1021F | 17736 bytes |
SHA-256: fb504cc23cefd114d54c83949ce21c4444d2290e1b008ac2a2edc0f707760933 |
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font_02_sfnt_off00013060.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13060 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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