MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by a high-confidence ML classifier and ClamAV. It functions as a link farm, directing users to potentially malicious PDF files hosted on compromised websites. The presence of multiple links to disposable hosting and the use of 'utm_term' parameters suggest an attempt to obscure the true destination and evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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 http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607351c1cb3d8---15999013459.pdf In PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102c34482f3a---56977258992.pdfIn PDF document text
- http://polimak.pl/userfiles/file/gunomufam.pdfIn PDF document text
- http://mega.kz/media/upload/files/luguzujukunokibewonabomij.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766d5befe26---sopabajug.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f2e17d5dd3e---12647219627.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610ca64aed9ec---71841963105.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/a3a896e6a642c89398aca5b3a08c40da/salawetogikakesap.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/jba2g3rrl4qihgoohnn62v5775/49347223192.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606c83363a2ee---rumomuxonevigopa.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf1b7a8637---96524491489.pdfIn PDF document text
- http://zonweringbelgie.be/ckfinder/userfiles/files/93020057259.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9beb8bb58b---31667833571.pdfIn PDF document text
- http://dkmmotor.com/files/userfiles/file/79016151608.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/tudijuwusole.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/71pq7qmr6g3f9v6jf24i85q816/sidifosenusunewiredow.pdfIn PDF document text
- http://turnyras.lt/Files/file/21786780091.pdfIn PDF document text
- http://inlygiaylynhua.com/upload/files/27511002236.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/7deaec7c8daf7ca33469785549a94a57/30155962888.pdfIn PDF document text
- http://cuboni.com/uploadfile/hong202108041536429571.pdfIn PDF document text
- https://bilegt.mn/userfiles/files/57861400402.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c34a901faa1---59815518639.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/22207425026.pdfIn PDF document text
- https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/d2dbfce353aa6b3d89f86ab8d0aaecbe/wixakavivunodidaj.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=is+forza+horizon+4+on+game+passPDF 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_off0000f492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF492 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ca4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA4 | 17188 bytes |
SHA-256: 26b414c60f41d56201e1d30ef4b265132e6a064318e85852484a0500cabb057f |
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font_02_sfnt_off000139a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139A6 | 10748 bytes |
SHA-256: dafbc706665f093215614f2763f63e2369e1018ced5a362b2e5b9e5111408da2 |
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