MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and disposable hosting domains. These links likely serve as a distribution mechanism for phishing or malware, potentially exploiting vulnerabilities within the PDF reader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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://drafthe.ru/uplcv?utm_term=i+wish+you+would+come+back+taylor+swift
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d436573d4e---jugaxavomojibaxobison.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b302d1e9d2a---pejijawejolanenesuguxir.pdf
- https://ncsccalgary.com/userfiles/files/96556690966.pdf
- http://studionegro.net/userfiles/files/fuvuvawikali.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076365db1234---luzemixo.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608122462a3e0---tadasilot.pdf
- https://anthonygillant.com/userfiles/file/61826684508.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5de982173---fitoxatimokakovexelitaf.pdf
- http://bhttourist.com/upload/fckimagesfile/93015163344.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/1a4457cf75ea11cf7e5aac92d2a0a151/jidamubagididifo.pdf
- https://namratalakhotia.com/userfiles/files/40943738869.pdf
- http://cs-golfclub.com/ckupload/files/rareg.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad981e9131e---powawixagar.pdf
- http://domplus.su/userfiles/files/63948063926.pdf
- http://brnc85.com/clients/878796/File/74917174506.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bbf183769d9a95198d3b2930c37adb89/35202002703.pdf
- http://navigator-nsk.ru/userfiles/file/nesokivewefe.pdf
- http://crosswaysrecruitment.com/userfiles/file/zorozulukodemaporivano.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3af3bc3f7b---javagerosogeberatomedu.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f644e364ca---34090384367.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5ab63f425---powipusas.pdf
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/a6cbcej8iajcgpti5t3pida3q6/seramadurati.pdf
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8bc.bin27fa49ca30b1f57c6e4f8b99ad1f73ead7010ce1f191e20d716503af09158f46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BC | 16160 bytes |
font_01_sfnt_off0000ee36.bin179fed4ac9f1de708addc5ea47c77788dae91cc17db95da14bba834cd20e86d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE36 | 11120 bytes |
font_02_sfnt_off00010842.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10842 | 16792 bytes |
font_03_sfnt_off00012054.bin298f775ce330500055b32f381b1e59a8b0dd55663cbee88efd6a9bdcbcf297c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12054 | 16472 bytes |
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