MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with many embedded URLs pointing to compromised WordPress upload storage and other disposable hosting. These links likely lead to phishing or malware distribution sites, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8f639c9ae---50540954795.pdf In PDF document text
- http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/riwekad.pdfIn PDF document text
- https://hearing-outlet.com/uploads/files/202109051823347974.pdfIn PDF document text
- http://sandsflooring.co.uk/ckfinder/userfiles/files/96336209748.pdfIn PDF document text
- https://hgb.se/filer/file/97792108737.pdfIn PDF document text
- http://chinhsuasolieu.com/media/files/nobetewiparane.pdfIn PDF document text
- http://www.ctnphrae.com/ckfinder/userfiles/files/nelixojidugekodesepudi.pdfIn PDF document text
- http://studiogallerani.it/userfiles/files/nazobonaxinenuzefemajenoz.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021091911253973499.pdfIn PDF document text
- http://biemmecommerciale.eu/userfiles/files/63224006502.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/vgvpskm5vvbea7ev80tp2vq6ka/92408984513.pdfIn PDF document text
- http://3suntech.com/UploadFile/file/20210914145646888.pdfIn PDF document text
- https://tonere.shop/app/webroot/files/userfiles/files/28010050032.pdfIn PDF document text
- http://mtt-association.fr/upload/file/5146347964.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d325c4fae2---fovexavipasilo.pdfIn PDF document text
- http://quiltingacademy.info/fckeditor/userfiles/file/xuvexezodutozubopusum.pdfIn PDF document text
- http://coolbiotech.com/upload/files/robosimebaravotasu.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/91204939282.pdfIn PDF document text
- https://menokatea.com/ckfinder/userfiles/files/48988748022.pdfIn PDF document text
- http://www.sictombbi.fr/ckfinder/userfiles/files/girukisid.pdfIn PDF document text
- http://recrute.fr/files/files/kiguxedaworivi.pdfIn PDF document text
- https://qwert5.com/psum/admin/userfiles/file/44297870468.pdfIn PDF document text
- http://majstrissmt.eu/www-data/file/ripivef.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+hide+galleryPDF 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_off0000d0ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e8e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E0 | 17444 bytes |
SHA-256: 07dbca6b4923dcaf595ad874a91907013bba296fe7099df1c417894d012aa674 |
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font_02_sfnt_off00011649.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11649 | 10444 bytes |
SHA-256: 9889e64e75141f90772fd44cf19a419a37593cf5c2e0224a55c844593085b2b0 |
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