MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary attack pattern involves directing users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://krisoc.ru/uplcv?utm_term=how+to+disable+camera+on+laptop+windows+10 PDF link annotation
- http://szsahsh.com/uploads/files/womuwowafowib.pdfIn PDF document text
- http://delve-cr.com/uploads/warele.pdfIn PDF document text
- http://theblare.com/image/upload/file/zujukojikazapizagenus.pdfIn PDF document text
- https://intertelleader.com/FCKupload/file/xofawefezowivepu.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161952d4383fd2---72123618272.pdfIn PDF document text
- https://sporyolu.com/resimler/files/solalododewuk.pdfIn PDF document text
- https://equinox-e.com/upload/UserFiles/file/litidodisufirexesoditul.pdfIn PDF document text
- http://vzwsportenmuziek.com/content_docs/jasag.pdfIn PDF document text
- http://psycare-spb.com/userfiles/file/78643540166.pdfIn PDF document text
- https://lasanisports.com/files/nowujitisa.pdfIn PDF document text
- http://globalfeedindustry.com/upload/files/nepumepetasajewovisuwesex.pdfIn PDF document text
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/zobozutisumabizeti.pdfIn PDF document text
- http://jobsmarttampabay.com/files/public/88503019066.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/161828bd4c54ee---zulenanakigurut.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/bareve.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16185df3ee7315---50901663431.pdfIn PDF document text
- http://lenosada.sk/editor_uploads/files/53337142174.pdfIn PDF document text
- http://jdjcnc.com/upfolder/e/files/20211119092744.pdfIn PDF document text
- https://pensiuneaselina.ro/userfiles/file/bagiteguwiwisibobew.pdfIn PDF document text
- http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/31172603699.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/0hjtje0d86o3soslihclqr62u1/tekukofete.pdfIn PDF document text
- https://expobar.vn/app/webroot/files/images/pages/files/bopexuxopibulimewelirasub.pdfIn PDF document text
- http://eco-versute.com/app/webroot/ckfinder/userfiles/files/fetefonevozir.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_off0000b0d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0D9 | 16416 bytes |
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336 |
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font_01_sfnt_off0000c778.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC778 | 16724 bytes |
SHA-256: de2cd9cee3ec36716b31cecd903bac8d814ec679c8eed5ac31daf47c64205868 |
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font_02_sfnt_off0000f305.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF305 | 11068 bytes |
SHA-256: 8df69b5ce1d76382531070b3dd6e63076f05f0f87a5289d7452e955c85e4d89e |
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