MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the general structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://inwebjor.ru/uplcv?utm_term=finan%C3%A7as+pessoais+livro+pdf PDF link annotation
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160865bc7daa02---ruworufotorexerewasi.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/dukadaruwiwu.pdfIn PDF document text
- http://ahkjt.com/upfile/file/3171661287.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160782e1f64ab7---99437383635.pdfIn PDF document text
- http://kartinatv.org/uploads/files/7948463090.pdfIn PDF document text
- https://discovercefalu.com/_data/images/file/79922900049.pdfIn PDF document text
- https://drsubhashawale.com/ckfinder/userfiles/files/pexofi.pdfIn PDF document text
- https://vandolderskb.com/images/usr/dafuj.pdfIn PDF document text
- http://cecev.com/stockages/files/29771274987.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/2a32a9bec5f07746da9cbdf6e3cf20a8/sotilewomogadogixito.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/0b8f01c9216de45ba8dd6eaa8d7fbc4f/88061257064.pdfIn PDF document text
- http://ambvetbrashersclavoghisu.eu/userfiles/files/bodowubagimufiviworef.pdfIn PDF document text
- http://gabortech.com/admin/file/wudasitoveg.pdfIn PDF document text
- https://vatlieutaphu.com/upload/files/88637609650.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/dcaa840017e09f45470f5770be3b8147/nixarunenasinozafixiga.pdfIn PDF document text
- https://sanaspinler.com/calisma2/files/uploads/97754426502.pdfIn PDF document text
- https://queensflower.nl/clientfiles/38080313655.pdfIn PDF document text
- http://bjqyms.com/filespath/files/20210802213646.pdfIn PDF document text
- http://livelyway.com/ckfinder/userfiles/files/27074171434.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7d0d523b1d---fujeranotumexed.pdfIn PDF document text
- http://bualuang101.com/backoffice/upload/files/wodenojajanedidu.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_off000101a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A9 | 10636 bytes |
SHA-256: 86ae5a6f3b07d7a8a17f335d00e32f55156a8f8072dd06ad6f60e44fb9efbb37 |
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font_01_sfnt_off00011a0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013220.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13220 | 21148 bytes |
SHA-256: a08410da87290736d2b99fdfd6c536cf402ca940759dd7ce1fb7623880e8c5ad |
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