MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern. While no scripts were explicitly extracted, the overall structure and URL findings point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://smidgel.ru/uplcv?utm_term=problems+on+ages+questions+and+answers+pdf+download
- http://www.cavice.fi/tiedostot/files/sumelogejorefojotejeweno.pdf
- http://kiuruvedenlukio.fi/tiedostot/file/85364266859.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed1aa737ce---59608097575.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a601bd071d9---letadoxikovipefikiboxuv.pdf
- http://bouncebodysupplements.com/newerac2c/userfiles/file/20244172926.pdf
- http://gibisch.info/files/files/subifebevalino.pdf
- http://gadkowski.pl/repository/filemanager/file/21368261042.pdf
- https://globalquestconsulting.com/userfiles/files/73885211836.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/07d504ee85cd4f5dd74f4efad90077cd/fajizegezazusivojodetawov.pdf
- https://ohcsi.com/ckfinder/userfiles/files/79197641630.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160dc06bf52185---69901411989.pdf
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/fb71c21fc4fe4ffc4bc4939a551f589e/tizopejazup.pdf
- http://smartpaintingplus.com/userfiles/files/45252209657.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3d5ea7483---798566377.pdf
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/15c9f989e3de1f4b74d4175f162d3073/zatekebojeluwuva.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093f5b7bc5ab---xigatupi.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3a0342c50---mikiloxukumeno.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/4470aa32bfacceded5ebe4184841e4f8/vabuwarawu.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/895ba7adc82123f3c858f7d79a43121d/pamosipoj.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210904_35ECD5E3AE56B88B.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee1404ff0e---96001094566.pdf
- https://ph2020.org/FCKeditor/file/66980968094.pdf
- http://www.eurosecurimed.com/ckfinder/userfiles/files/67002741669.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d76e.bin6591ec800e6c13e5328716f4b803e1f15492ecd68050d711412f9ce36e136a9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD76E | 17844 bytes |
font_01_sfnt_off00010598.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10598 | 16792 bytes |
font_02_sfnt_off00011daf.bine7d23bdb7397465cec176ceee50e6229ee12e11953f5bb6b0c706be34130d2c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DAF | 11312 bytes |
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