MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites, and one primary URL that appears to be a redirector. The document body, though heavily obfuscated, suggests a lure related to a book title, likely to trick users into clicking the malicious links. No scripts were extracted, but the PDF structure and embedded links indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://laborke.ru/uplcv?utm_term=l+existentialisme+est+un+humanisme+livre+complet+pdf PDF link annotation
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16074cb4daa043---kalososutimagofo.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0721691bc0---rugudisorulebotuporo.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf24130d983.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b31a77653c---ropolomimugevo.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/5aa7149a98a8d0326fa5ba82ba893ca6/lasonojizexepojepil.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/eleck6v46pd1afhhp965e76qmj/kowukemezonegus.pdfIn PDF document text
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/r4qkqgpdigiteg583gntq9el9d/20011452953.pdfIn PDF document text
- http://bogelaipigeon.com/upload/file/48729074540.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/23977958229.pdfIn PDF document text
- http://nfc.soo.jp/file/97669584156.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a2b830d62---fipowobazotusuzinemuxub.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a48e0157029---gerewozarag.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/60050609188.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/dbf99be20634691abc920cb3876e7443/lofadem.pdfIn PDF document text
- http://cga82.com/admin/File/bawuzadotapen.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f8bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8BB | 6588 bytes |
SHA-256: fa72874b8c381873b432d3b5cea9ecddba20f04e8e1c9face7d560df1136061a |
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font_01_sfnt_off00010935.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10935 | 5464 bytes |
SHA-256: 70694b3eb77a19d3bfc80367ca121ee7663490ff89b415126fc5f22461c97fc6 |
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font_02_sfnt_off00011bad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BAD | 16716 bytes |
SHA-256: 68778c98ec045c558f6c020bb153a9d726cf2801a46d77cb07b0d599e2a06ccd |
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