MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs hosted on potentially compromised or disposable domains. These links are likely intended to facilitate phishing attacks or distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://crewmak.ru/uplcv?utm_term=what+are+the+advantages+of+android+operating+system PDF link annotation
- https://binhvi.com/upload/files/42486769083.pdfIn PDF document text
- http://bienchidan.org/uploads/files/dopevegesakatokovi.pdfIn PDF document text
- http://thuduchouse.vn/pics/file/41178852330.pdfIn PDF document text
- http://immobilieninvestors.net/userfiles/file/maduzibeta.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/guporirozeve.pdfIn PDF document text
- https://cpsguffanti.it/uploads/file/nuvogalinitusi.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613215fbe9887---56735792512.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142ce1ebfeef---rosaxe.pdfIn PDF document text
- http://ndt-ultratech.com/files/82445924027.pdfIn PDF document text
- http://www.saito-ken.jp/userdata/file/peditorawutazezoz.pdfIn PDF document text
- https://value.ae/userfiles/file/39787155108.pdfIn PDF document text
- http://househouse.it/userfiles/files/lemozalerawube.pdfIn PDF document text
- http://ore-processing.ru/d/files/4427962559.pdfIn PDF document text
- http://pp-aqua.com/userfiles/files/91111566038.pdfIn PDF document text
- http://tyextractor.com/d/files/72203265568.pdfIn PDF document text
- http://surestegc.org/documentos/file/kaluw.pdfIn PDF document text
- http://www.kevimotor-rock.hu/files/files/82913317002.pdfIn PDF document text
- https://radiosmile.hu/upload/file/teduvafib.pdfIn PDF document text
- http://printrun.nl/userfiles/files/99466707787.pdfIn PDF document text
- https://estduquebec.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/68005737033.pdfIn PDF document text
- https://mimpishio2.net/contents/files/lefovewojulojupuwami.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/hm7rgriliqpapdkdk0gbs1n3j1/26005582310.pdfIn PDF document text
- http://phukhoabacninh.com/images/files/77371406627.pdfIn PDF document text
- https://10s317.com/uploads/files/202109210119094774.pdfIn PDF document text
- http://gyndoktors.de/ckfinder/userfiles/files/80139516548.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_off0000b4ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4EF | 11072 bytes |
SHA-256: a0bfa8242cb1f31eebcc01d36b0c38e196f5e73d7f671a124efb168cab123009 |
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font_01_sfnt_off0000ce63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE63 | 17356 bytes |
SHA-256: e071704da07097a7abc0484df8cd68df6357a9b5cc6cc3f6101b0ebc070e5310 |
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font_02_sfnt_off0000faa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAA1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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