MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which appear to be link farms or compromised sites, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://infrive.ru/uplcv?utm_term=every+word+that+starts+with+d PDF link annotation
- http://apartament-krokus.pl/userfiles/file/14554162712.pdfIn PDF document text
- https://triptoboloyfoundation.org/editorsfiles/files/bojiwirifow.pdfIn PDF document text
- http://cdseoulps.com/uploadfile/fckeditor/file/jefudenoromadoxazuxa.pdfIn PDF document text
- https://www.assofmt.org/ckfinder/userfiles/files/41335905553.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1614209f729f6b---daxuvuva.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161378f78c039c---60683819413.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/48897536787.pdfIn PDF document text
- http://kronospan-mofa.hu/editor_up/koxixabu.pdfIn PDF document text
- http://easyreturn.store/userfiles/file/vibisurufesedutivofe.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/sozegumuxuxu.pdfIn PDF document text
- https://aokman-drive.com/d/files/21614374297.pdfIn PDF document text
- http://cerescommoditiesltd.com/Images_upload/files/jusifikotesabigubetepixam.pdfIn PDF document text
- http://jungam21.com/upfiles/file/1631843534.pdfIn PDF document text
- https://feltshoe.com/userfiles/file/pewejopiborobumanig.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16138427d95bb3---14947646151.pdfIn PDF document text
- http://fszhenjia.com/upfolder/e/files/20210917083117.pdfIn PDF document text
- https://vcvscr.cz/www/www/fckphotos/file/32753670053.pdfIn PDF document text
- http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/tuwomogomurifuzawibetuj.pdfIn PDF document text
- http://csc-028.com/userfiles/file/20210905081613_961w20.pdfIn PDF document text
- http://naphotelbangkok.com/userfiles/files/vapizuxepuf.pdfIn PDF document text
- https://jhservice.net/imagenes/galeria/files/79450174695.pdfIn PDF document text
- https://cingenito.ca/upload/editor/file/82590642638.pdfIn PDF document text
- http://paramountswimwear.com/userfiles/files/belizafonidolopafete.pdfIn PDF document text
- https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/80124823191.pdfIn PDF document text
- http://xlpe.net/Images_upload/files/tavinozexizuwap.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_off0000ce5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e66d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE66D | 18212 bytes |
SHA-256: c4c07c9c6b2e105f2d60714dde59f5a6d8749201e41e112e024baa54b76b3394 |
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font_02_sfnt_off00011615.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11615 | 10444 bytes |
SHA-256: 9a69d6271f95c0715fdde793c0b030bda024eaff00a1fd9fa6c5388396164de1 |
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