MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution attempt. Although no scripts were directly extracted, the nature of the embedded URLs and the detection names point towards a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161386042313b0---vuboxadinuzetazox.pdf In PDF document text
- https://supermovi.com/userfiles/files/80484829509.pdfIn PDF document text
- http://orosweb.hu/ckfinder/userfiles/files/27745467703.pdfIn PDF document text
- http://stonebreaker.at/tamov.pdfIn PDF document text
- https://grandhotelbulgaria.com/userfiles/file/28020859425.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614504d350f4c---68906354707.pdfIn PDF document text
- http://bjsixiang.com/jingkelun/userfiles/files/20210907163208.pdfIn PDF document text
- http://gasasosong.com/upload/fckeditor/file/50513952754.pdfIn PDF document text
- http://quangphong.vn/uploads/image/files/tajenadojigopibovulurak.pdfIn PDF document text
- https://iqmuseum.mn/uploads/files/80805839284.pdfIn PDF document text
- https://avukat.dnsaktif.net/upload/files/dujifofuwulisikumufe.pdfIn PDF document text
- http://donkaew-furniture.com/ckfinder/userfiles/files/ganakuvazo.pdfIn PDF document text
- http://kppzp.pl/userfiles/file/19651356840.pdfIn PDF document text
- http://shortguycentral.com/ck_uploads/files/fegudadul.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/dsopiiv2n4lgcs8pn4q656a2r8/16396859759.pdfIn PDF document text
- https://satesayap.com/contents/files/98784380814.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/zevupiviloloxese.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1614161d27a221---2056938951.pdfIn PDF document text
- http://ampletrekking.com/userfiles/file/kifinozixuwuvakubil.pdfIn PDF document text
- http://wpchkg.com/upload/image/file/pitazilokumezajamivuvop.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/l4arnn1kt4k3up2oapednflr5v/83898012355.pdfIn PDF document text
- http://bronia.org/userfiles/file/dujejun.pdfIn PDF document text
- https://dimensionshoppe.com/alpha/ckfinder/userfiles/files/8092095379.pdfIn PDF document text
- http://slovbau.sk/test/userfiles/file/vomumavanajadabuwenafi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=connect+firestick+to+tvPDF 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_off0000d6ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6EA | 17668 bytes |
SHA-256: c404c367a977a76f7aefdd872daa75af8ec887c5fd5d9719be35a4f5ffa853fd |
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font_01_sfnt_off0001046e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1046E | 10312 bytes |
SHA-256: 7d012733b4a3dd8fded4ca9dfe1c498ccd484667dbaa3cec1d652d38bf98cfa5 |
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font_02_sfnt_off00011be4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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