MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many hosted on compromised WordPress sites, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the document is designed to redirect users to potentially harmful external content.
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://synerhu.ru/uplcv?utm_term=how+long+keep+thawed+chicken+in+fridge
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b39cf97405---kinul.pdf
- http://www.urbanwaterways.info/files/73393600108.pdf
- https://e-midas.ro/files/file/66956928470.pdf
- https://adminico.nl/userfiles/file/kowejonesenugitefofilebe.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef6d7d5082---31039131005.pdf
- http://innersolutions-uk.com/file/95054251067.pdf
- http://vimbark.sk/editor_uploads/files/zexupekumazo.pdf
- http://insei.eu/userfiles/files/99860520170.pdf
- https://g55net.com/webpagebuilder/ckfinder/userfiles/files/rozubewuxidazefulox.pdf
- http://graviroz.hu/ckfinder/userfiles/files/63515798946.pdf
- https://tckontrola.hr/files/97118570724.pdf
- http://tabouligrill.com/ckfinder/userfiles/files/97188490395.pdf
- http://euredit-editions.com/userfiles/file/levowoluvumaretujiw.pdf
- http://aryajob.com/user_upload/file/zudawinoxi.pdf
- https://powermailer.in/userfiles/file/wotujojesaledariru.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161451d7829310---jiladudikega.pdf
- https://secolink.sk/userfiles/file/fitowowipibafakot.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1614272e715ba2---nimijozukuli.pdf
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/49389918532.pdf
- http://ei-windykacja.pl/upload/file/fasesafavezazoxivagajumo.pdf
- http://xtra360.net/campannas/file/silijosetekaw.pdf
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/piwepujavozuj.pdf
- https://hujanuang.com/contents/files/dewafibosomilasaw.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614b97483a543---tifuvu.pdf
- http://prompol.com/media/file/pozavemadojateb.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_off0000b600.bin8aa7cb2957972828337f0cc69bb78e54fb065455351dbd131d3eb90373bad5d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB600 | 16696 bytes |
font_01_sfnt_off0000e0a9.binb4f5ba9d8c716bca62042e4c58192e8e4bbe4dbe1ecb9b1228852179ad33a7ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0A9 | 10900 bytes |
font_02_sfnt_off0000f99b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF99B | 16792 bytes |
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