MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate an attempt to trick users into visiting malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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 http://pastoret.it/userfiles/files/fanidotowodosipevoduk.pdf In PDF document text
- https://adrfarysz.pl/userfiles/file/tagokob.pdfIn PDF document text
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/65434088283.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/57947748328.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa2200799d---kuriderovosuf.pdfIn PDF document text
- http://yugreat.com/filespath/files/20210902121125.pdfIn PDF document text
- http://phutungquanghieu.com/app/webroot/files/ckfinder/files/77176471964.pdfIn PDF document text
- https://sergiomauri.com/images/file/88267537960.pdfIn PDF document text
- http://kaies.net/upfiles/file/1616492765.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee3682ab8e---kamozes.pdfIn PDF document text
- http://hizirferforje.com/admin/fckeditor/editor/images/file/tabujovisav.pdfIn PDF document text
- https://biroestarsa.hu/uploads/file/rawomogu.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/77977713894.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161431cc48d513---56021430870.pdfIn PDF document text
- https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/nakobiwuwema.pdfIn PDF document text
- https://alternatifhirdavat.com/upload/ckfinder/files/vufuzero.pdfIn PDF document text
- http://studiogeologicotrilobite.com/userfiles/files/kevofulosiduzoxukepade.pdfIn PDF document text
- http://splogservice.ru/content/file/68439010180.pdfIn PDF document text
- http://montesantangelo.it/files/files/jezazepatusorutawumupato.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/24212140720.pdfIn PDF document text
- http://happyhanool.com/ckupload/files/42042093896.pdfIn PDF document text
- http://kuppersbusch.hu/userfiles/files/diwak.pdfIn PDF document text
- https://galerieportelouise.be/userfiles/files/57308491084.pdfIn PDF document text
- http://avrig35.ro/uploads/fck_editor/file/folelapokivavodisibapiza.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131ae8f0ff62---61955862215.pdfIn PDF document text
- http://expresskaliski.info/file/34778526646.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=moto+e4+updatePDF 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_off0000cc73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC73 | 10044 bytes |
SHA-256: 7181e63349ce709d9ad3f845db23459970fd79b0f70e0c228b302110d70cbe57 |
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font_01_sfnt_off0000e2ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EE | 18584 bytes |
SHA-256: cddd9e88034817472405036c454b4721e080a68c95aae822f997670e383e972c |
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font_02_sfnt_off00011339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11339 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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