MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
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 http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b34d41dd8e---pusupotobipalenipi.pdf In PDF document text
- http://msiutilities.biz/documents/gumusi.pdfIn PDF document text
- http://resetimpianti.it/reset/public/file/30562328942.pdfIn PDF document text
- http://draftingfloorplan.com/ckfinder/userfiles/files/89374552857.pdfIn PDF document text
- https://spcinternational.in/ckfinder/userfiles/files/92133176591.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bfe9b366ba---23637307101.pdfIn PDF document text
- http://iraneto.com/basefile/iranetocom/files/ridibud.pdfIn PDF document text
- http://gonvvama.net/filespath/files/20210910010003.pdfIn PDF document text
- http://kangmeideyiliao.com/uploadfile/file///2021090403193669.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/67381179109.pdfIn PDF document text
- http://tiramisu-o.com/yamituki-n/uploads/files/xenojuzawurum.pdfIn PDF document text
- http://cssh.es/img/file/77647679869.pdfIn PDF document text
- https://12shio4.com/contents/files/navusemagedakivijuxeta.pdfIn PDF document text
- https://henseltech.cz/userfiles/file/xoguxugiguvib.pdfIn PDF document text
- http://lukinserv.hu/file/mananuz.pdfIn PDF document text
- https://strategieb2b.ca/userfiles/file/mogebamuvadap.pdfIn PDF document text
- https://curewelldiabetes.com/userfiles/file/zapedomisidutalemuxu.pdfIn PDF document text
- http://geofer.eu/userfiles/files/deniro.pdfIn PDF document text
- http://wangguanhardware.com/userfiles/file/66356411039.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/23000782169.pdfIn PDF document text
- http://posicert.com/upload_fck/file/2021-9-2/20210902192744651753.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/9643783187.pdfIn PDF document text
- http://fibertechnique.com/tmp/file/kijerufutebadiduxade.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/e9a3d4a3046bea71e95cb8f4c3d34c45/jutejifutuvozewezikoba.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=mi+note+4+adb+driverPDF 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_off0000f048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF048 | 10304 bytes |
SHA-256: 145402b530d742affc915cb061ecdab713e7d37c21c9cddc41010447132dbf90 |
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font_01_sfnt_off000107a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107A5 | 18740 bytes |
SHA-256: d9e7afc40a13934c33016655795ec3fbec8f3aaa9add46cce713d08dda3243e9 |
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font_02_sfnt_off0001388d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1388D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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