MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV detection. It contains numerous external URIs and link farms pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate it is likely designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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=awesome+boss+meme
- https://apoiotelecom.com/imagens/img_fckeditor/file/74448050894.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/8dd585ba786ea66ec52fb3ebd73011b4/25790422828.pdf
- https://wrd13.com/force/file/giwafelobezogafowuwafosa.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846fe0d61de---24180811428.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607279a3e6dd0---80094096163.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160971b73775f0---3702376523.pdf
- http://popnmusic.fr/userfiles/file/30906256070.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/ecidp0ipr842h91vvopcotvalj/lokosorotiritexuseka.pdf
- https://tamphuctriland.vn/upload/files/xofodavigojomu.pdf
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/8975fc8b66ba246fb290de5600fbd124/labegeravovinulosubaxo.pdf
- http://perles-del-beya.com/userfiles/file/fuzepudone.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160bf182aaaa1a---wonofunubiderozefupof.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/99e292a732fc3b3b3e8f00954d8bc723/basijas.pdf
- http://placc.info/up_image/47185161849.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b866fbb342a---febufuvowuva.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/cd1739eb3162aca65679282656704396/xikodorute.pdf
- http://apsons.eu/files/file/69181776204.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/qtfbod0it2k8r8hp64dam5u8a2/pobidenuvupowotumedexiwug.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf7799d3bf---27086553971.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/vhqr0qucvl3687khhtgu4cibc1/38720934010.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_off0000f558.bin2878eeacc6674fc36b8e1b5961f2c4220d4db5694a5e1565d532a3e912dcdbe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF558 | 17260 bytes |
font_01_sfnt_off00012283.binc44d282689cca5802b3a7c753d474911c58a0a9c3445f86f8be2859dd78c19cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12283 | 9872 bytes |
font_02_sfnt_off00013862.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13862 | 16792 bytes |
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