MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to potentially compromised websites or disposable hosting, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of a link farm heuristic and the high number of distinct hosts associated with these links reinforce the conclusion that this document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 http://szyqjsj.com/UploadFile/file/20210916051724818.pdf In PDF document text
- https://777mto.info/contents/files/dotuzuz.pdfIn PDF document text
- http://gillsandgeckos.com/userfiles/file/vasiwasolu.pdfIn PDF document text
- http://wsp.pl/userfiles/file/rapemarepojewiximo.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/gukowavavibikojozuwaro.pdfIn PDF document text
- https://www.abrasco.org.br/ckfinder/userfiles/files/rixedikolikonos.pdfIn PDF document text
- http://fukaofoods.tw/uploads/files/202109061959169759.pdfIn PDF document text
- http://thomasgearon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6175403065.pdfIn PDF document text
- http://prmakeup.com/Image/files/20644254231.pdfIn PDF document text
- https://tims.ro/ckfinder/userfiles/files/2514632283.pdfIn PDF document text
- http://bukharaatlanta.com/sites/default/files/file/kowuwa.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161367bdd2ca14---47946538347.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2efb41579---70964557187.pdfIn PDF document text
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/simomujelemetenor.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16135f53f8ddb3---38588126202.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394658cc180---wofosipogo.pdfIn PDF document text
- http://jullien38.com/ressource/site-image/files/61484807592.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16143760403e85---foponen.pdfIn PDF document text
- https://www.comperat-89.fr/ckfinder/userfiles/files/21088576525.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/defojomokafofuzakutevipiw.pdfIn PDF document text
- https://biharlokmanch.org/userfiles/file/verivis.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6d9deeb0f---36088052064.pdfIn PDF document text
- http://ministerium.pt/files/62486035028.pdfIn PDF document text
- http://sgd42.ru/userfiles/file/vuzariritotapubi.pdfIn PDF document text
- http://jinwoosmc.com/userfiles/file/73944458808.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/md645sak36h2dk72bc920ku016/34279414055.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=pok%C3%A9mon+go+cheatsPDF 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_off0000d6cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6CD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eedf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEDF | 18580 bytes |
SHA-256: 55ccb7127e834af3a82b14bc0d184639b12c5b9ad8e7daba57d1f3addfdbee7d |
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font_02_sfnt_off00011efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EFB | 10684 bytes |
SHA-256: e600ebd5a44000cc24568e743f1e88211eab41caa01a134a2039885e78f73114 |
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