MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to numerous unknown URLs, many hosted on compromised CMS uploads, suggesting an attempt to distribute malicious content or conduct phishing. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM firings indicates a strategy of using numerous distinct, low-reputation domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9879
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://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f30676ff3---91313325179.pdf
- http://saxonrt.hu/img/userfiles/files/susaj.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/afd51e581612676e018ec9db98a5e418/29157567449.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fc12ea7bb81---xojevirevimize.pdf
- http://canvangdientu.com/images/file/govapepu.pdf
- http://gawhs80.com/clients/873705/File/wilur.pdf
- https://jmcoverseaspvtltd.com/uploads/files/rumaruz.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/ec2d6e2069aec62ac5905eb58d34d3b9/kabugug.pdf
- http://naturalmis.com/userfiles/file/61699057617.pdf
- http://slenderclub.cz/ckfinder/userfiles/files/81344125661.pdf
- http://keralabiblesociety.com/fck_uploads/file/geloduxovixikekisam.pdf
- http://mlsconsulting.net/cms/files/File/pulovujesusudijisis.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160db083e5725d---68818575315.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f868b2264a6---11642659586.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084eefac062c---2571819747.pdf
- http://bsbcarpet.com/userfiles/file/79512493492.pdf
- http://chinawin-consult.com/userfiles/jufapi.pdf
- http://eperon-kochersberg.com/img_db/69597580614.pdf
- https://1877painters.com/FCKeditor/file/sipipepa.pdf
- http://isisthailand.org/file_media/file_image/file/jazarovademaf.pdf
- http://poorclarescork.ie/images/99217810933.pdf
- https://triangle-electronics.com/assets/userfiles/file/71345392127.pdf
- https://vibangnhadat.com/uploads/files/65240661459.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/546f353c4f473b1e0404d310d527ef0b/27378870508.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd9838aaa62---79149730059.pdf
- http://yejida.com/userfiles/file/vusokipenobalixunafi.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1611924fe3a779---85186241445.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=sure+thing+play+script
- 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_off00010e13.binf476621a7be54ed5ca7fff3fb88fa99b26824b3e9e86ab40ee362ac08a960110 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E13 | 10820 bytes |
font_01_sfnt_off000126fb.bin9d620d6cd57cc9b41e09d19f370d03d564e9568843b14ed3af78e1453b9ec6d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126FB | 20012 bytes |
font_02_sfnt_off00015b96.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B96 | 16792 bytes |
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