MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. Heuristic analysis indicates it functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. The embedded URLs, while some are marked benign, are part of a broader pattern of redirecting users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://vinasimex.com/uploads/file/97515991062.pdf In PDF document text
- https://rt-totaalafbouw.nl/userfiles/file/99682516186.pdfIn PDF document text
- https://kp-bs.ru/upload/files/80125921206.pdfIn PDF document text
- http://kiuanai.com/userfiles/file/53981114109.pdfIn PDF document text
- https://mccartha-cobb.com/userfiles/files/29123501141.pdfIn PDF document text
- https://www.wemservice.com/ckfinder/userfiles/files/kutut.pdfIn PDF document text
- https://textosl.com/upload/editor/file/48262510516.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a86fa168b1---10304241.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16135d763a7206---fewaperawowinajan.pdfIn PDF document text
- http://otestmanager.org/club/data/userfiles/file/20210904142103.pdfIn PDF document text
- http://oprandi.it/userfiles/files/kuxemefapawokirinezux.pdfIn PDF document text
- http://ngor2-3.com/file_media/file_image/file/rumezoneferomaseb.pdfIn PDF document text
- http://halaljones.com/uploads/files/tajugipudo.pdfIn PDF document text
- http://wsp.pl/userfiles/file/jetugo.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/2fb7ec86d97fedce1f68faec8c89b97f/68104271676.pdfIn PDF document text
- http://xn--4k0b43gkwo4gn.com/upload/editor/file/33634938568.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8f470dc38---34823410922.pdfIn PDF document text
- http://fzsvybbs.at/userfiles/file/soporedesoganovumizij.pdfIn PDF document text
- https://mmagame.com/userfiles/file/14365999447.pdfIn PDF document text
- http://kor-ra.ru/UserFiles/file/jumav.pdfIn PDF document text
- https://porfic.com/fotos/file/12285441940.pdfIn PDF document text
- https://posaonakosovu.com/ckfinder/userfiles/files/woxuzi.pdfIn PDF document text
- http://chetaomaynganhnhua.com/uploads/files/28836702495.pdfIn PDF document text
- http://iphonedown.com/ckfinder/userfiles/files/42675224812.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=kompozer+download+for+androidPDF 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_off0000c528.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC528 | 10532 bytes |
SHA-256: 660d713ffeeff4ea0921bf95a97ba2eaf887664db96d7ae8c2f8a23136c603f8 |
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font_01_sfnt_off0000dd18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD18 | 16968 bytes |
SHA-256: a49e80b89f6f04267ecbd69d6204554e7b83ea170bbaa40bdd63642804ccfa14 |
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font_02_sfnt_off000108fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108FE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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