MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised CMS uploads. These links likely serve as lures to phishing sites or downloaders for further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 http://firegallery.ru/img/upload/838906454.pdf In PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/ea793a82e09fd9d1ff77e932cb3bf4b2/15904220294.pdfIn PDF document text
- https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/qinrt36mbuunksi7kueqj64v53/pifolexobelux.pdfIn PDF document text
- https://footballsod.com/images/ck-uploads/files/volinanibav.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870cc020a7f---29194322643.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/pbkokgld01svg9kjehtuo47l44/37034893291.pdfIn PDF document text
- https://vicotelecom.vn/static/source/images/file/gimofufobus.pdfIn PDF document text
- http://au-coeur-du-temps.com/userfiles/file/sinoxaluzamawa.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160838ce4e7b01---54918424902.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/nuzerolafixarawid.pdfIn PDF document text
- https://gamaconsultores.cl/upload/file/13311752494.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b715d48b082---40605254123.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/54627748902.pdfIn PDF document text
- https://agatanorek.com/files/file/kudufojirexozinu.pdfIn PDF document text
- https://z87992961.com/upload/files/20210716054940.pdfIn PDF document text
- http://atomiccm.com/userfiles/files/somexepojurozi.pdfIn PDF document text
- http://asiavent.com/UserFiles/file///46811130888.pdfIn PDF document text
- https://kawanmto.info/contents//files/37506721653.pdfIn PDF document text
- https://dla-pracownika.pl/pliki_user/File/dafiju.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087067bb44c3---dimexixoxowodudakakobo.pdfIn PDF document text
- http://whs1979.net/clients/65916/File/87854205977.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=is+annulment+more+expensive+than+divorcePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e272.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE272 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA89 | 11000 bytes |
SHA-256: 436abf6bee9723802a888eeb9e14bd290eff4fc8e4a1dd05dcab42a07d0da9c1 |
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font_02_sfnt_off000113e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113E6 | 16532 bytes |
SHA-256: 5423f899975bffa4cf55a817f07370607136a033778e5a62c115c96076cbd98a |
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