MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this. The document body is heavily obfuscated and unreadable, but the heuristic firings clearly indicate a malicious intent to redirect users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9876
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://cructi.ru/uplcv?utm_term=the+ghost+in+the+machine+arthur+koestler+pdf+download PDF link annotation
- https://yptea.com/data/fckeditor/files/90415476569.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/453d422a157efec826dcac3d04147438/43898757920.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/a0389dbae456bdb3bfe94dcdc35cb12d/jasizawurevibijaje.pdfIn PDF document text
- https://dgaspcsm.ro/ckfinder/userfiles/files/31382339522.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec40ac4b2b2---65849263346.pdfIn PDF document text
- https://qualitymattressfactory.com/admin/userfiles/file/6851441666.pdfIn PDF document text
- https://majorsagilekvaros.hu/uploads/file/jejaxomutux.pdfIn PDF document text
- http://stillincontact.com/images/mails/file/viziwezuwubadezog.pdfIn PDF document text
- http://brilspa.ro/userfiles/file///kulef.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5cf14873d---gavixerajap.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///45862517680.pdfIn PDF document text
- https://strechybenesov.cz/content/42523816156.pdfIn PDF document text
- http://karthikeyanjayaram.com/userfiles/file/sigofurelep.pdfIn PDF document text
- http://cngwalk.com/fckeditor/userfiles/image/potazewijegukije.pdfIn PDF document text
- http://bajajsports.com/userfiles/file/jiluvajagofasale.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609d6def9f38c---14862000373.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/kuxunatitiwawalerogali.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/9lncg4pqbsrqajustv6uf2fjr1/19286215260.pdfIn PDF document text
- http://relaxzenter.com/uploads/files/tanikirutuwisiwijuvagepo.pdfIn PDF document text
- http://enovosti.info/ckfinder/userfiles/files/78268354688.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a69cf873e4d---7880701714.pdfIn PDF document text
- https://vicotelecom.vn/static/source/images/file/metexupil.pdfIn PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609a008b237a9---9817749928.pdfIn PDF document text
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/4d180772df33e6dff5628e1b1b4266fc/lajeterofitaduze.pdfIn PDF document text
- http://kraemer-duennebacke.de/files/file/xexegekadofenila.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/1.0In 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_off0000fbb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB9 | 20372 bytes |
SHA-256: 86c582dac65b969300b35aaab2c270a890025bce2b048fc19de7fd01b9933b80 |
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font_01_sfnt_off00013012.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13012 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014829.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14829 | 11308 bytes |
SHA-256: 6a10e84e52b429b6f7eaca7cd3b92cc8fda63263e9894b740f815d1caa58a837 |
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