MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating the document is part of a campaign to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://garglob.ru/uplcv?utm_term=their+possessive+adjective PDF link annotation
- http://worldwidestationeryholdings.com/files/file/tajova.pdfIn PDF document text
- http://sculecuacumulator.ro/app/webroot/files/userfiles/files/11001358981.pdfIn PDF document text
- http://dagmar-e.de/userfiles/file/losawupi.pdfIn PDF document text
- https://ceramicasvillaflor.cl/UserFiles/File/jowodakupivawelugezu.pdfIn PDF document text
- http://blackivy.pl/userfiles/file/maretamo.pdfIn PDF document text
- http://shannonlakeestates.org/fck_images/file/557498712.pdfIn PDF document text
- https://auditorescr.com/ckfinder/userfiles/files/gakisizokubunogod.pdfIn PDF document text
- http://daejonggyoyc.com/userfiles/file/20210914100416.pdfIn PDF document text
- https://invest.pl/userfiles/file/68755982099.pdfIn PDF document text
- http://cu-hinothai.com/ckfinder/userfiles/files/wisova.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a73606f723---87378839446.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16165dd1128150---31836097411.pdfIn PDF document text
- http://makeyourpartnermelt.com/userfiles/file/2393423082.pdfIn PDF document text
- https://santa.sg/images/users/00000000/files/26009392109.pdfIn PDF document text
- http://litroshaber.net/resimler/files/73604735001.pdfIn PDF document text
- http://yenidenyuzlendirme.com/ckfinder/userfiles/files/jajitubatelugi.pdfIn PDF document text
- http://www.syrahresources.com.au/application/third_party/ckfinder/userfiles/files/jewaki.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614d02ec63b80---69808176111.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1614408715b9a2---22110957033.pdfIn PDF document text
- https://vico-real-estate.com/ckfinder/userfiles/files/31184022474.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_off0000e694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE694 | 19792 bytes |
SHA-256: ae3d441c51502282d41d4c784a1bc7d64390460cd273a352d579021ac925661a |
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font_01_sfnt_off00011a59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A59 | 10620 bytes |
SHA-256: 01052adbbdce6ad9bdf7b9e174e80eb49814a829b942b6ef11973248d59ad3e5 |
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font_02_sfnt_off000132cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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