MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting. These links likely serve to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://synerhu.ru/uplcv?utm_term=watch+queen+and+slim+online PDF link annotation
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/i1lfihvik9vmv9l7ko7u4mim44/razisanemis.pdfIn PDF document text
- https://samajsutra.com/userfiles/files/66030410999.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210911141434.pdfIn PDF document text
- https://scout-educationguide.com/userfiles/file/sajanifinap.pdfIn PDF document text
- http://lunaleo.pl/userfiles/file/20470627552.pdfIn PDF document text
- https://weishinclinic.com/uploads/files/202109052206399240.pdfIn PDF document text
- https://didaktika.drmix.cz/uploads/files/55316666601.pdfIn PDF document text
- http://pokewaveanaheim.com/uploads/files/75184388182.pdfIn PDF document text
- http://hoangnamjsc.com/upload/files/2464129716.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/dexuvat.pdfIn PDF document text
- http://domario.ru/userfiles/file/47961328485.pdfIn PDF document text
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/8f8142ee9f7707d8e8a0197df3032ce4/nenuf.pdfIn PDF document text
- http://lpkgoodframeupvc.com/userfiles/files/75429259928.pdfIn PDF document text
- http://avvocatoandreabruschi.it/userfiles/files/poxavapasanatusama.pdfIn PDF document text
- https://btsis.com/upload/ckfinder/files/86961333833.pdfIn PDF document text
- http://skalamatbaa.com/userfiles/file/12584014879.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613517a82c088---nexinilerimusijelozolem.pdfIn PDF document text
- http://damosushipleasanthill.com/uploads/files/5920007870.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/24394476785.pdfIn PDF document text
- http://datcat.vn/2018/file/65938038625.pdfIn PDF document text
- http://wccflooring.com/userfiles/files/88106126524.pdfIn PDF document text
- http://silverspringabw.com/uploads/files/86733350385.pdfIn PDF document text
- http://kbinteriery.cz/userfiles/file/32273391156.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_off0000d931.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD931 | 17844 bytes |
SHA-256: 922750da89dd058ef00ef37e46374f82cae55a856d6de63370657fc619aa92a7 |
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font_01_sfnt_off0001071a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1071A | 10772 bytes |
SHA-256: 74011c6949346f64c446d514bf4176ba4290dd281c843a727587253dcae411ae |
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font_02_sfnt_off00011f86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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