MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains numerous links pointing to compromised CMS upload directories, suggesting a link farm designed to host or distribute malicious files. The presence of these links and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16071b40bb2083---fexiwefidaxawukoxo.pdf
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/a87bc18fbccff5cdfd7f5e87f9e65fe2/rupisuxukutilevuzeg.pdf
- https://kisikana.hr/UserFiles/files/sogovebenusipiz.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8e5673383---vuxixabogugu.pdf
- http://botosani.ro/img/uploads/file/75642043325.pdf
- http://provia-events.de/pics/fotos/1/file/vatovo.pdf
- http://www.odnpoznan.pl/fotki/file/file/gadefadeseforelivedeti.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb8e4e9aac---sarelababinuxirisof.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/a932e26294aad9ed9857c363fbb5e210/15405007550.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16090e3bf1ec1f---rerepigolupis.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/def29c953b2fdf858c663c6a5ad62bda/mugigexoziko.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/ca86265b476d11d75f380d308173b5f3/nowiw.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/a9a28c4d1f38770745c2e4323b45f182/48649733693.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/725930c25374d48b4723bb0a798c683e/pesupawenudawonasixok.pdf
- http://eprdel.cz/userfiles/file/tatogisuvenan.pdf
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d086dcb82cf---nuxorixo.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/picpcpr6irjktn417h7oi8mav2/modigefozezozubusomujates.pdf
- http://frangarcia.eu/upload/file/kovugazijutimibezizetelik.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4bad8a1e74---63060401518.pdf
- http://cn-daomeng.com/upload/userfiles/files/795ce2901e531980cad441ebfe350a7a.pdf
- http://soft-pro.hr/upload/datoteke/66633698509.pdf
- http://kamkmori.cz/ckfinder/userfiles/files/95937616189.pdf
- https://deltagroup.bg/uploads/file/rupofixes.pdf
- https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/pflm249fje0fokg23cqlnfdtu1/87355667838.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=story+writing+in+agile
- 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_off00010cdd.bin7068b5ef15b34e8165d73b80891b18768566f6cc67729d85ff1a5d95c6ef5e36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDD | 10392 bytes |
font_01_sfnt_off00012491.bin1f1c46ebaed80786575034ea5359effb8b2ae9b1d90fdee48aae40591b773aaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12491 | 17136 bytes |
font_02_sfnt_off0001511c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1511C | 16792 bytes |
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