MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress installations. The ML classifier strongly indicates maliciousness. The primary function appears to be acting as a link farm, potentially to distribute malware or engage in SEO spam, rather than delivering a direct payload from within the PDF itself.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://krisoc.ru/uplcv?utm_term=dimplex+eco+radiator+manual PDF link annotation
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/412c3a02fef1c27e6f050a8c70466873/damolitu.pdfIn PDF document text
- http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/zatikoxunaxeveve.pdfIn PDF document text
- https://lacaune.hu/userfiles/file/gazuputugo.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612965b224f5f---pipumipatelowoxanos.pdfIn PDF document text
- http://ahs1966.net/clients/f/f9/f93f52488d971b5f2372adc2bdb16541/File/kumikofekupagokavuv.pdfIn PDF document text
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/488d861d36dba89365c2d0028a1f775a/gukubuvawazeluxilozewe.pdfIn PDF document text
- http://neteyes.eu/editor_up/68864202030.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb722d0a1b3---fujitevimuxumujudibus.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/tafiliderofe.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/86d073f8d0a8714bfa81f3aded626f1f/mapijisozatelametakad.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/3d7863c8a0bcce80b0f1893824c110f3/madulexusunasa.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/89883646926.pdfIn PDF document text
- http://centreforeffectivecoaching.com/media/file/90313616571.pdfIn PDF document text
- http://makesomenoise.hu/upload/file/xazotedonit.pdfIn PDF document text
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/e4f94e0c6115802248ca60f6b9294f3e/67471128846.pdfIn PDF document text
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/vegez.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/namijulezef.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/xudevubejosiw.pdfIn PDF document text
- https://quimicasorocolor.com.ve/ckfinder/userfiles/files/40267915934.pdfIn PDF document text
- http://baggiez.net/userfiles/file/58488087825.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/22418c2a453bfbc352049b2e01175dfc/leteza.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc99d6c625---96311265649.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fd296a441b4822e825fb6e70cf0d44a3/26925104966.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_off0000c338.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC338 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB4F | 10708 bytes |
SHA-256: b647a87bb73e73292070bbcc6e4e993949c2f2b568c1684b144815e85e35593e |
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font_02_sfnt_off0000f3d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D6 | 16436 bytes |
SHA-256: 80c9ec1ef6eae559e8551ec12361b0a951151f6d9539e77cb7587e0724d17198 |
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