MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document that contains numerous links to external websites, many of which are hosted on compromised WordPress sites. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely provides instructions to open a password-protected archive, a common tactic to evade initial security scans. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=resize+pdf+size PDF link annotation
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/a005982b7cf9b09aa496e9646a3cef99/8087288501.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/bopibekigoxekasamedunelo.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/07p1hpt70ftquvgdenmi7r0fps/37790315295.pdfIn PDF document text
- https://shindah.com/images/ckeditor_img/files/42924924985.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/rlr4no98vl882efnudt6pubfp6/fekadilasuzod.pdfIn PDF document text
- http://scbczy.cn/up_files/file/20210629_205305.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/eb7ec8183233e7b19fda25943f9c0814/31079053414.pdfIn PDF document text
- https://csodamalom.hu/files/files/58313986328.pdfIn PDF document text
- http://ufnk.fr/app/webroot/files/file/8702245599.pdfIn PDF document text
- https://zemiigori.com/uploads/file/famojaxomakebawijam.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/83803abbe22e590d9f9f4f2f82bf1f0f/nojekomalavunotubiwosibe.pdfIn PDF document text
- http://pphu-joanna.pl/fckpliki/file/95246913230.pdfIn PDF document text
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d1e7aa742---5148014916.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160acf27adca77---gexidotesolokosu.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb8ae6c87e---40228941853.pdfIn PDF document text
- http://theclubburger.com/uploads/files/3973705441.pdfIn PDF document text
- http://jcon-aps.dk/userfiles/file/74558712673.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/boleni.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb6aad82f3---76178472859.pdfIn PDF document text
- http://buchtel1967.com/clients/26382/File/62816728748.pdfIn PDF document text
- https://aterhesseg.com/up_image/file/xenavewozadude.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/d107375bf222d4df01448a02699186ed/95049866842.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ffa4f0b599---natixatefupu.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/arirhpe5rl8pts4kt9fmc6dsl2/burugenizawanipopavuvo.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_off0000ccf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCF8 | 17784 bytes |
SHA-256: 161120f8e04a24c20495b36912791336fe889a9266075a0f728adbbc2662e6eb |
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font_01_sfnt_off0000fb75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB75 | 9968 bytes |
SHA-256: f68df26f60200f68d21f1457dd339672ea5f1ca7b9754e6af7c94cac9d55af6e |
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font_02_sfnt_off000111a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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