MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely leveraging T1566.001 (Spearphishing Attachment) as the initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://digireg.nu/upload/xadoj.pdf In PDF document text
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/0a91bbe7fcfd25a44e2b01dc0554603a/rovomupudojinopop.pdfIn PDF document text
- http://tacchigroup.com/public/thread/risorse/file/49818668432.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-5-20/20210520035317122397.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8aab4e611---2780139076.pdfIn PDF document text
- http://lindendirect.com/tempimg/file/lumadewatuvabivogezuxek.pdfIn PDF document text
- https://virtrade.gr/userfiles_lybo/file/xamelexop.pdfIn PDF document text
- https://bruceleevideos.org/images/file/1800262640.pdfIn PDF document text
- http://speckrepej.com/upload/file/10084240783.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfefc385915---lipilubafo.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a32d5ddbe---bowiwarajagirukepatumot.pdfIn PDF document text
- http://asupuro.com/user_data/image//file/23460801138.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d7996fa5575---59363073961.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/dedorujajojujefo.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/b7ee8a847bd5c3516e5ce9a19a0894c8/95310659777.pdfIn PDF document text
- https://davaocarrental.com/images/file/sufop.pdfIn PDF document text
- http://anapharmata.hu/ckfinder/core/connector/php/files/60511590774.pdfIn PDF document text
- http://bvsaigonbinhduong.com/uploads/files/41604639176.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e8b9cf39b0a2da12db74d41656e99e12/57480960024.pdfIn PDF document text
- http://simpli.ie/survey/userfiles/files/28173166400.pdfIn PDF document text
- http://attlas.center/userfiles/file/xurefofoveg.pdfIn PDF document text
- https://autonoleggioassereto.com/file/51124514081.pdfIn PDF document text
- http://azizolace.cz/images/file/71303981662.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/c6e1073d92e1edda29e6deb2a094234b/99857357774.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/3e20cbcc12104b79a9df317576a12e7e/45500517595.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/88948047447.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=tim+berners+lee+biography+pdfPDF 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_off0000ebdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBDF | 11064 bytes |
SHA-256: 423d07928f3f45d974dcf7308e2ca8359278389e2bbe0a4189fad9369afa2537 |
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font_01_sfnt_off000104f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F6 | 17296 bytes |
SHA-256: 14fdde0327468cd3b65e1f8a9947803bf854d45a74ede11254a245f541b71782 |
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font_02_sfnt_off00013203.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13203 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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