MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs pointing to compromised WordPress sites, indicating it functions as a link farm. The ML classifier strongly flagged this PDF as malicious, and heuristics identified it as a link farm on disposable hosting. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://irlanc.ru/uplcv?utm_term=time+and+work+aptitude+questions+with+answers PDF link annotation
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/b6719546ea0f8d064e89d3676fc24c74/kawurorojefezobojosuz.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16078bbaf4ca16---16282867803.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/cf9139921638840efd7e132a7f815076/1055253391.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160915b102cc6a---71941614539.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1df652c39f---xewikafesifuwofomadej.pdfIn PDF document text
- https://vestol.bg/files/file/lazedujuxasumura.pdfIn PDF document text
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/89dd403c2d67078e4e3ec48bac6041c3/mapozufenegabomuguxukop.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c909ce08b9---27806849490.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/j8m11b8uffhugd14ut08tahj54/82231672718.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cec1498657---fimonegaroponuzotiweriju.pdfIn PDF document text
- http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/84063494262.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d07b5a2d0f---29758418885.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160759ca7eb864---lolifu.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/efdbee90c3f3e75603c12e28ea3d3597/lasarukinirodemum.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0dc72ca87---bewuvomowezira.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/sao4ga6rkl5ku93pd9dqgr3pv1/bigurikisadokotir.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609eeaae2bde2---73788662528.pdfIn PDF document text
- http://ahkjt.com/upfile/file/xevekotazizemisopizoxir.pdfIn PDF document text
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/549f99a37210a64310664321b7c817e9/62087177077.pdfIn PDF document text
- http://portalcom-b2b.es/img/user///file/_0400143001621514841.pdfIn PDF document text
- http://studiotrusso.it/userfiles/files/42236180358.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16099c1b2c6158---wujixa.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f27dd5422e---37806168240.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/qjim6pea895hm35df1tchs7oir/jipadegesogas.pdfIn PDF document text
- 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_off0000de12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f624.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF624 | 17168 bytes |
SHA-256: eec45008f669900e2e2119bb565bcd73d1f09ae268e15fc54d793802211c83f6 |
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font_02_sfnt_off000122ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FF | 10996 bytes |
SHA-256: 2615e29f0b6a95dd0234e80420920ee9fab2512b4addcc425283b90dbf6537a3 |
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