MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://queure.ru/uplcv?utm_term=corporate+finance+stephen+ross+12th+edition+pdf PDF link annotation
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316b5bb1fa4---48011855911.pdfIn PDF document text
- https://anpheatingandac.com/nbloom/fckuploads/file/muluga.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613914592f5ac---41540109533.pdfIn PDF document text
- https://abofahed.com/userfiles/file/90692437821.pdfIn PDF document text
- http://abwlondonblvd.com/uploads/files/zalekowaxenizidol.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/ludide.pdfIn PDF document text
- http://webs123.com/userfiles/file/83243120414.pdfIn PDF document text
- http://xn----0tbbbfo0f.xn--p1ai/userfiles/file/larurejamu.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/80413646393.pdfIn PDF document text
- http://rosabaum.de/web/editor/files/jurimipi.pdfIn PDF document text
- https://jodhpurtravels.com/nbloom/fckuploads/file/59464405979.pdfIn PDF document text
- http://master-br.ru/img/file/3584335416.pdfIn PDF document text
- https://lacgl.org/upload/editor/file/79740399187.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613799c53ce09---73173051443.pdfIn PDF document text
- http://imhyuk.com/imhyukeditor/userfile/file/35948717547.pdfIn PDF document text
- http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/23268365325.pdfIn PDF document text
- http://wefocusdesign.com/upload/files/88535741987.pdfIn PDF document text
- http://homeloanz.net/images/e/file/maxogida.pdfIn PDF document text
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/jibufujuboba.pdfIn PDF document text
- https://successstudio.net/userfiles/file/1490197154.pdfIn PDF document text
- http://partnerplus30.ru/images/fornews/files/vibadejedavutufe.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/cccbc9110641920877bf3fec116ce097/letijadotape.pdfIn PDF document text
- http://ingore.cn/upload/files/soxer.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb3aeab1e3---vuvanija.pdfIn PDF document text
- http://solarexperte.ch/fckeditor/editor/images/file/93093680821.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_off0000bd2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD2B | 16788 bytes |
SHA-256: 0a40d8aee4abf8ca0d605cb8a8867aca65aba8767ed379e8b82870785d548756 |
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font_01_sfnt_off0000e87c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE87C | 10876 bytes |
SHA-256: 151743a3ad078e9538fa687d404fcd5b4769c3195a8c15414f4536589bad29f4 |
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font_02_sfnt_off000101a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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