MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as a malicious PDF by ML classifiers and ClamAV. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, forming a link farm. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly suggest a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing lure, likely intended to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://drafthe.ru/uplcv?utm_term=samsung+galaxy+note+5+rom PDF link annotation
- https://winstar-tools.com/UserFiles/editor/file/rusowenapimixo.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e9c8727b43---87796769882.pdfIn PDF document text
- http://geomanteia.com/userfiles/files/36948538685.pdfIn PDF document text
- https://topclassgreenery.nl/images/file/71492516934.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/zefopivilonogur.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16142894985edb---79209856525.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/14924470464.pdfIn PDF document text
- http://www.kizkulesikizogrenciyurdu.com/public/ckfinderuploads/files/pevilijefiva.pdfIn PDF document text
- http://rockhousemethod.com/ckfinder/userfiles/files/totukibovo.pdfIn PDF document text
- http://tgroupsrl.com/userfiles/files/vuzevosexiwexi.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/zebuzirivo.pdfIn PDF document text
- http://yaan121.com/uploads/files/202109071312333974.pdfIn PDF document text
- https://temahr.hr/files/86684597297.pdfIn PDF document text
- http://arabic.cz/ckfinder/userfiles/files/vaxibetekifigipokorimaz.pdfIn PDF document text
- https://thegioibaobicarton.com/Images_upload/files/85863440772.pdfIn PDF document text
- https://observatoire-omic.org/documents/file/misobawir.pdfIn PDF document text
- http://cortocircuito.trialpanel.com/images/Upload/files/supasepezerelamev.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161479843bd0fa---17030086381.pdfIn PDF document text
- http://www.zaluziemalina.cz/userfiles/file/rezagaliganipakimokeva.pdfIn PDF document text
- http://rajasthanmetals.com/userfiles/file/13871233973.pdfIn PDF document text
- https://bdata.vn/upload/files/55800695181.pdfIn PDF document text
- https://pracowniatechart.pl/fckpliki/file/25050745165.pdfIn PDF document text
- http://ekopaczka.pl/imgbrama/files/74158409394.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/siwonepazowobomuvop.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe9e6e2da5---37325007453.pdfIn PDF document text
- https://ozmutludokum.com/userfiles/file/zeripunifivuvakomasas.pdfIn PDF document text
- 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_off0000b6fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6FB | 15428 bytes |
SHA-256: ccfc94cae580b7fc421b75841eba0858ed01e435eba94cf02bdfadd1b34f1e3f |
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font_01_sfnt_off0000de83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f69a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69A | 10884 bytes |
SHA-256: 395d18a45dd6c4872ab2605654c54bf01310ff212a7ebf2a61bf92bbd6972fdb |
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