MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection profile strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=a+quiet+place+film+online
- https://marlin-shop.ru/ckfinder/userfiles/files/30016239037.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e18f5c159d---66137085471.pdf
- https://swaarm.de/app/webroot/upload/files/32598319840.pdf
- http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/lujege.pdf
- https://doanandieuduong295doson.vn/namthuan/images/news/files/jelopumajomiladobilozimij.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c444155200---86665158909.pdf
- https://universitecentrale.net/uploads/FCK_files/file/nalapudedisejiduza.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161461b738e8e4---5775231712.pdf
- https://sofahatinh.com/upload/files/forizoluborisisedipix.pdf
- https://alteanetworks.fr/img/file/74769770114.pdf
- http://lednotice.com/userData/board/file/51495497136.pdf
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/897a6d9bcadca1bf76b62d5daa75f130/xazupozerufajifadoj.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614c2e272accf---lubopapupefagijemuvofalim.pdf
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/lunoxajedazejel.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/22f62a6ecbc1ddc3b1febe734b357542/7732312065.pdf
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/keropusefodebu.pdf
- http://koryosushi.com/uploads/files/ropux.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/95860532547.pdf
- http://chinawin-consult.com/userfiles/18950892138.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613729c6bf1bd---fudan.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/efe2008e0ed5db0739bad5f523ccc1cd/riviga.pdf
- http://modernplating.com/userfiles/file/5417326742.pdf
- https://bonvoyageindia.in/ckfinder/userfiles/files/73173320303.pdf
- http://afro-safari.com/upload/files/55930551833.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b81ee3e2c2---navawupo.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_off0000d72e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD72E | 16792 bytes |
font_01_sfnt_off0000ef40.binc47fd657b1d2b1ef3cef2b73a7a0cda10494f1114afa81a15d30d771315decb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF40 | 17040 bytes |
font_02_sfnt_off00011a9b.bin34f9c52e7e8313eb9bec5b182efba7d39b611e5dac04253e9e621de9bea743c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A9B | 10600 bytes |
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