MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing or a trojan. While no scripts were explicitly extracted, the nature of the links and the PDF structure point towards an attempt to lead the user to a malicious site, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://advertisingreports.info/assets/ckfinder/core/connector/php/uploads/files/tokiv.pdf In PDF document text
- http://jshanwoo.com/ckfinder/userfiles/files/musogegitijewetuziv.pdfIn PDF document text
- http://spreewaldpension-luebben.de/meineBilderAlbertGrundschule/file/84095720534.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bce8492506---75134440592.pdfIn PDF document text
- https://basealimentare.it/webroot/files/fck_uploads/File/gebubaradesibe.pdfIn PDF document text
- http://dermatologomiguelgallego.com/miguel/fck/file/63916443845.pdfIn PDF document text
- http://monteconsultants.com/image/upload/File/vasatovi.pdfIn PDF document text
- http://toroisg.com/public/images/files/telure.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1615446ad2e1fa---40904640333.pdfIn PDF document text
- https://sbsoftware.ro/admin/userfiles/file/73670805683.pdfIn PDF document text
- http://pokemom2.com/uploads/files/radukelunazixerav.pdfIn PDF document text
- https://drnanemilk.com/tctt/sites/aaa/file/datejukibifitit.pdfIn PDF document text
- http://hzbmsj.net/images/upload/File/51001310714.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20211013124458_5x47uj.pdfIn PDF document text
- https://www.mds-horizons.com/upload/files/60106742608.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16144c5f78c2c5---44109110205.pdfIn PDF document text
- https://cityface.cz/res/file/78639271117.pdfIn PDF document text
- https://olivermilk.vn/tctt/sites/aaa/file/pudobuz.pdfIn PDF document text
- https://taxfirma.com/userfiles/file/96717829520.pdfIn PDF document text
- https://legend-chang.com/UserFiles/files/39509254297.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/nakugike.pdfIn PDF document text
- http://hcvitamin.com/webroot/img/files/mixelowubopugipusob.pdfIn PDF document text
- http://secondary.oksalesstore.com/uploads/assets/files/84459665859.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145d7fdc8f4a---wezapurugum.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1613925f007074---54713009643.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/xPAns0MRe5M/uplcv?utm_term=summary+of+the+secret+of+machinesPDF 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_off0000c274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC274 | 17072 bytes |
SHA-256: da5972f44f44299ab607fa3bb6e3a5f48ea0d447c213b9d50fe2b7995f7d6472 |
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font_01_sfnt_off0000ee2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010641.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10641 | 10844 bytes |
SHA-256: 4883052a972f2ac16a00cbb99a21d8c5c093bf795d0183078ae2ce21ea66f16d |
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