MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://tksvolga.ru/userfiles/file/womuwubusozejunido.pdf In PDF document text
- https://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/62980310745.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/bajidis.pdfIn PDF document text
- http://vector-mebel.ru/uploads/files/pulugodidemuguwow.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/bidukeledunad.pdfIn PDF document text
- http://gediklimakinahidrolik.com/resimler/files/poxunugusiboxit.pdfIn PDF document text
- http://banghetretunhien.com/media/ftp/file/99160169703.pdfIn PDF document text
- http://venkateshservices.com/uploads/40393573978.pdfIn PDF document text
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/169s84pdkck886qdag5rc4rcs1/suwenipajelutal.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b75088f4fd---65496193237.pdfIn PDF document text
- http://metapolar.hu/tmp/52365050696.pdfIn PDF document text
- https://praktijk.zorglink.nl/ckfinder/userfiles/files/popikupokabekirewulisipex.pdfIn PDF document text
- http://hanmih.com/userfiles/file/20210907173500.pdfIn PDF document text
- http://homeopathyhongkong.cn/files/nadadikeniwofilovewa.pdfIn PDF document text
- https://serrechevalier-skifun.com/imagesfile/mewesasapeluximubaxavo.pdfIn PDF document text
- http://gmicropilotes.com/uploads/files/96303964992.pdfIn PDF document text
- http://www.addvanceo.info/userfiles/files/2277721330.pdfIn PDF document text
- https://qian-ho.com/upfiles/editor/files/67682880834.pdfIn PDF document text
- https://hsdinstruments.nl/uploads/files/3902085900.pdfIn PDF document text
- http://odnoklassniki-files.ru/images/uploads/files/fajigilogemadoronul.pdfIn PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/c6a223de3447c6591c2f90acaff495b1/nuzoziw.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/30464177660.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd169a80b---jesokifoduviwojuwegif.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/59033056342.pdfIn PDF document text
- http://intertexmedical.com/userfiles/files/44318102097.pdfIn PDF document text
- https://dananeye.com/uploads/files/202109042005528801.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=recover+photos+from+android+sd+cardPDF 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_off0000f1d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D4 | 17824 bytes |
SHA-256: 2f8f549f174c55b1d41dd24ad234e8d63a0fc18336a1ef9907d6e5f694b7c10c |
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font_01_sfnt_off00012023.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12023 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001383a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1383A | 10952 bytes |
SHA-256: baabc22c7ce83aa5c3a392995d8294472b5edcf7829478cf148f9d867a86e9d4 |
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