MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs pointing to external sites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm or redirection mechanism. The primary purpose appears to be directing users to malicious content hosted on these external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://coretry.ru/uplcv?utm_term=secret+of+monkey+island+android PDF link annotation
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/8dc86aa1qsdac5bhstrsvpkhde/80078535005.pdfIn PDF document text
- http://togclick.com/media/userFckfiles/file/tosazetujewewezanu.pdfIn PDF document text
- http://domuran.pl/files/file/86730502877.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/vunon.pdfIn PDF document text
- http://mobydick-band.de/fckdata/file/lezuwepogonudafepimuneb.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-5/20210905135407486931.pdfIn PDF document text
- https://gsacademy.ge/uploads/files/70054276642.pdfIn PDF document text
- http://happy-land.hu/editor_up/79885352914.pdfIn PDF document text
- http://jjw-led.com/userfiles/file/nekunokalujon.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/44119147179.pdfIn PDF document text
- http://chongros.com/userData/board/file/zejitawabafo.pdfIn PDF document text
- https://technoarc.net/userfiles/file/libipowavurupabipa.pdfIn PDF document text
- https://ijtm.in/userfiles/file/bitopebagijulum.pdfIn PDF document text
- https://bharatceramics.in/ckfinder/userfiles/files/38145345088.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/82370721204.pdfIn PDF document text
- https://al-wesam.com/userfiles/files/fufilaforexikajuwimixu.pdfIn PDF document text
- https://alaskaproauto.net/nbloom/fckuploads/file/52541103661.pdfIn PDF document text
- http://ty-int.com/files/files/38865862707.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16139cb705fbe3---43577141370.pdfIn PDF document text
- http://twinmd.ru/userfiles/file/90367822905.pdfIn PDF document text
- https://emartdeko.pl/galeria/file/leretebi.pdfIn PDF document text
- https://webkapper.nl/ckfinder/userfiles/files/maxoletatuba.pdfIn PDF document text
- http://bfttacg.marketsearching.com/upload/files/davazudixuma.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/bbaef0e8bb309175dada244aadfa5193/20515773409.pdfIn PDF document text
- http://123dvere.sk/files/file/18269242242.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_off0000dcf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f50d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF50D | 10920 bytes |
SHA-256: 29f5de206d7511d69c393534a45c4c0953a9aef145b138317bbb6d5b65a0e598 |
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font_02_sfnt_off00010e58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E58 | 18560 bytes |
SHA-256: b6569813a4c87c3253d5943ad580758c860bc3c55941b3a6a1a4dac9c57a3e24 |
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