MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF acts as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://maschimaurizio.it/userfiles/files/17740552522.pdf In PDF document text
- http://bacvietexpress.com/upload/userfiles/files/97366173233.pdfIn PDF document text
- https://olivier-daulte.com/ckfinder/userfiles/files/49097232142.pdfIn PDF document text
- https://renault-service.com/userfiles/82317579440.pdfIn PDF document text
- https://cengilli.com/icerik_images/file/vapipanipetegapeve.pdfIn PDF document text
- https://ideylia.fr/uploads/file/jonekakowu.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e674162bb---nikab.pdfIn PDF document text
- http://thesnowmanicecream.com/ckfinder/userfiles/files/19447002331.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbc2e8d26b---vowotoralomaremumip.pdfIn PDF document text
- https://citronel.com/userfiles/files/13108543668.pdfIn PDF document text
- http://xlpe.net/Images_upload/files/11800319297.pdfIn PDF document text
- http://architetturaurbanistica.it/userfiles/files/siwisimanafe.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613837810e137---pekezofo.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/disafagukowipo.pdfIn PDF document text
- http://www.santamyoga.be/images/file/94513419589.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380a95e1277---joked.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613333149ff07---lixafumagizejumovalutufe.pdfIn PDF document text
- https://kmkmekanik.com/upload/ckfinder/files/20404908933.pdfIn PDF document text
- http://krakowska98.com/zdjecia/fck/file/65334920218.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e92c1532d1---17741400305.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=english+verbs+starting+with+nPDF 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_off0000e30a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE30A | 16792 bytes |
SHA-256: 71493fe981d9cba93088638bc390b772dee465ea4aba01d6626b7245ce8be1fb |
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font_01_sfnt_off00010e67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E67 | 10544 bytes |
SHA-256: 2d249dfa6ee862c777dc2f095fa56a1b0512666b2488d5523ca6f32fbcb03eef |
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font_02_sfnt_off00012669.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12669 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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