MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous external URIs and a link farm structure suggests a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the overall structure and URL patterns point towards a malicious document designed to redirect users to compromised websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://chcial.ru/uplcv?utm_term=starting+strength+routine+pdf PDF link annotation
- http://doorsatyrau.com/ckfinder/userfiles/files/tikabit.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613362d7c205a---sosanutavekunos.pdfIn PDF document text
- http://gotoippc.com/ckfinder/userfiles/files/4370745463.pdfIn PDF document text
- http://fobas.cz/userfiles/file/pipuputiwuxufularalamulag.pdfIn PDF document text
- https://unitytradefze.com/ckfinder/userfiles/files/panudufimalefowumaxovejen.pdfIn PDF document text
- https://iohrp.org/f_files/files/sojuzuvabamizubam.pdfIn PDF document text
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd2aa4f30b---59556422594.pdfIn PDF document text
- https://tepihtrava.rs/files/gemimole.pdfIn PDF document text
- https://doublehaircenter.com/upload/ckfinder/files/disesuxo.pdfIn PDF document text
- http://kaies.cn/upfiles/210915212036647865yvtnnt.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614229402665f---nadobafijukufu.pdfIn PDF document text
- http://dakdekkersindex.nl/images/uploads/59825575065.pdfIn PDF document text
- https://babetravelling.com/ckfinder/userfiles2/files/zozukoweninup.pdfIn PDF document text
- https://amrapalispot.com/userfiles/file/zutofebegaxijoxaxozekugo.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/fobotizefegixorabobisupax.pdfIn PDF document text
- http://seritour.com/rsm/files/71483863047.pdfIn PDF document text
- http://afro-safari.com/upload/files/42321564859.pdfIn PDF document text
- http://quiltingacademy.net/fckeditor/userfiles/file/zajik.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613441add707f---3927592702.pdfIn PDF document text
- http://enricobarraco.com/files/73817927999.pdfIn PDF document text
- http://www.ez4parcel.net/upfile/files/2021/09/11/4815509840.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdd5dae460---9674850468.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16143b46a473c7---60604084141.pdfIn PDF document text
- https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/vedotijinilavuzajabax.pdfIn PDF document text
- http://sanphamhanquocymy.com/uploads/files/zupuraj.pdfIn PDF document text
- http://vector-food.pl/userfiles/file/dobewadurosepefa.pdfIn PDF document text
- https://keluargamimpi2.com/contents/files/xepadovanivabulisijag.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_off0000bf4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF4A | 10904 bytes |
SHA-256: dcfb38ef929746f054ca31c7206abfd560d5b85a63fec17a4c973df2f636e5ae |
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font_01_sfnt_off0000d835.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD835 | 15152 bytes |
SHA-256: cef03901b804b117490760c0cca51c0897cf337417877bfe28cfb3139f479b7b |
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font_02_sfnt_off0000fe71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE71 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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