MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed for malicious redirection. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload. While no scripts were explicitly extracted, the nature of the URLs and the PDF structure suggest it's intended to lure users to malicious sites, likely as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 http://isotech.si/uporabnik/file/maruxezobevegole.pdf In PDF document text
- http://nyett.hk/uploads/news/files/64170325545.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///xibopizixadulitukerorapi.pdfIn PDF document text
- https://kocgrafikavukatwebsitesi.demowebsiteleri.com/upload/files/zovogajidasimajadojet.pdfIn PDF document text
- http://sportingfoundation.com/uploads/file/maposuge.pdfIn PDF document text
- https://dollarplus98.com/images/upload/files/59076742875.pdfIn PDF document text
- http://hoangduy.vn/vn/files/zemateba.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/dc137ab8eee2b7e6b9ce1fcffb38e098/83306969701.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/86179213855.pdfIn PDF document text
- http://evohome.pl/userfiles/file/sixegepagora.pdfIn PDF document text
- http://naszemotyle.natura2000.pl/imgturysta/files/juwinipusaxuzurobuk.pdfIn PDF document text
- https://gogift-it.com/userfiles/files/tesojafepovive.pdfIn PDF document text
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/15747326011.pdfIn PDF document text
- http://erbaytag.com/resimler/files/ludosaxarikixuzarav.pdfIn PDF document text
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161338a12ca7b1---18780227512.pdfIn PDF document text
- https://securitydm.com/slicice/file/mejonobasusudujafimudu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f88875867d---89430653186.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/161381815a50f0---dujemap.pdfIn PDF document text
- http://csp.hu/editor_up/88351178770.pdfIn PDF document text
- http://studionegro.net/userfiles/files/91276206505.pdfIn PDF document text
- https://kvzriu.org/images/file/kusumukobosa.pdfIn PDF document text
- http://csc020.com/userfiles/file/20210905211349_lpone9.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=contrast+linkers+exercises+pdfPDF 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_off0000bff9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d810.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD810 | 10840 bytes |
SHA-256: ff49c84abf95245aafe60182e05f818ee2bfe2ede8d98ff237abfeaca729efe1 |
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font_02_sfnt_off0000f13b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF13B | 18700 bytes |
SHA-256: 89cf28f87db0c37e20ece944b4f2c8736b54fa4ae1f0516dcd8d94f68449e7d1 |
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