MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple external URIs and a link farm heuristic strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://someteme.com/archivos/_20210627045911.pdf In PDF document text
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/budizonazovidewaxoba.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/cgljsmbqhvgjlevlfbtam4biv3/wuvajow.pdfIn PDF document text
- http://montazerangroup.com/uploader/file/mileboratepizemupewaxik.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/491f1fd59462e86fc9af69ef237b6492/fomikiroziruludij.pdfIn PDF document text
- http://townofwinslowin.com/flash/townofwinslowin.com/file/44810700119.pdfIn PDF document text
- http://motopujcovnateplice.cz/userfiles/file/12123618447.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/75075641331.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c31fe7c2654---kivarowirila.pdfIn PDF document text
- https://toocapen.com/files/80345627388.pdfIn PDF document text
- https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/10217434104.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/hj4dq5di5iccb0kbq2ia9v9r5d/bizesitavevuzakuge.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/46277778650.pdfIn PDF document text
- http://7seapharmtech.com/Uploadfiles/files/74530059297.pdfIn PDF document text
- https://bamor.org/userfiles/file/mazebemifudonoxufiseloxi.pdfIn PDF document text
- http://euroambulans.pl/userfiles/file/77473219036.pdfIn PDF document text
- https://i-intelli.com/ckfinder/userfiles/files/giwevewovepozujidan.pdfIn PDF document text
- https://salvatoredivilio.it/userfiles/file/soroditajek.pdfIn PDF document text
- http://mudrkanuch.sk/editor_uploads/system/files/mamuvariz.pdfIn PDF document text
- http://pantryscan.com/123cars/imagefck/file/xukaxoperuxas.pdfIn PDF document text
- https://ibextrail.com/editor-images/sugaduxo.pdfIn PDF document text
- http://sisparts.pl/zdjecia/fck/file/58591940959.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=tascam+564+portastudio+user+manualPDF 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_off0000db3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB3A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f34c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF34C | 18496 bytes |
SHA-256: 249962bb1a0b6987f6284e374c17088a2d23704185de441a1ed94dd120ef8009 |
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font_02_sfnt_off0001239a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1239A | 11120 bytes |
SHA-256: 9e328598af4e6b64507cfa4d5c37274803fbef87b923d32612ad699c57f71cd1 |
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