MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm with multiple URLs pointing to other PDF files hosted on compromised WordPress sites. This suggests a tactic to distribute malicious content or redirect users to phishing pages. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a malicious intent to redirect users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 5
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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://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/f9318f7fe2959a34400ee99e244fa192/99473710018.pdf In PDF document text
- http://wittlich-luexem.de/userfiles/file/wotukotapulaguwajit.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/opgap38jilmb7u3c0nl2strth2/barejalapojonekemiki.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fe42afa29---66396027227.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/46edf57c8f6f2db4cac2d050834cb4af/bukavave.pdfIn PDF document text
- http://interiorconsignments.com/media/file/pixovi.pdfIn PDF document text
- http://atdawnwelift.com/userfiles/file/65010601122.pdfIn PDF document text
- http://kraski-chernila.ru/resources/file/20896005938.pdfIn PDF document text
- http://animalscipublisher.com/files/upfiles/file/74702487956.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e1294417b2---lojizutufip.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075bdf986163---sunuzibole.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/l0mev6lbp80gt4642ss5fc7v2a/67603666592.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42f5e0454f---69870008017.pdfIn PDF document text
- http://podlahyadvere.sk/editor_uploads/system/files/77181961468.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/e2a5d2fauuan17rve27ioql4g0/61628866001.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087525b85bff---gofelurulowuwofefifeb.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/fc5cc91e96f12d1d9df61873120d5fa3/26075239275.pdfIn PDF document text
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/3ef9fd6337623a7c3ec8beee8776b4d0/fupege.pdfIn PDF document text
- https://pensiuneavalentina.ro/app/webroot/file/77097041013.pdfIn PDF document text
- http://timandlor.com/userfiles/file/76913217610.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/10839933777.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/fc77ed06761bb45c3864c31093b1c71f/kapakuvowelelulal.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=puzzle+complex+cross+numbers+answersPDF 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_off0000ea63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA63 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001027a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027A | 10836 bytes |
SHA-256: c8dc357826058d24e6e23d71fd4944208abbf9fac812fd8ddc4c08456e2ff47c |
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font_02_sfnt_off00011b5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B5D | 17500 bytes |
SHA-256: 2171d84a9410331693bc6cbcab92ae6c5bf7fcae9b9031fc6cfbb8215f5ad48e |
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