MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS upload storage, suggesting a phishing or malware distribution scheme. The PDF's structure and numerous external links support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://smidgel.ru/uplcv?utm_term=what+is+euler%27s+constant+used+for PDF link annotation
- http://www.ppk-kp3k.kkp.go.id/ver2/extra/ckfinder/core/connector/php/media/ckfinder/files/dajivaduzuwemijoxatarulo.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/92441946979.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160838f2784df2---51678766950.pdfIn PDF document text
- https://www.channeloflove.com/ckfinder/userfiles/files/walunegukosofe.pdfIn PDF document text
- http://ambulatorioveterinariocamali.com/userfiles/files/magojitujavu.pdfIn PDF document text
- https://atraba-holding.com/userfiles/file/58970356923.pdfIn PDF document text
- http://studiolauramoschini.it/userfiles/files/37852778934.pdfIn PDF document text
- http://thesetnews.com/images/fckeditor/file/vamubiderovugavofes.pdfIn PDF document text
- http://prodottoitalia.eu/userfiles/files/xodugalinitefezizi.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa3dd8dd88---11899378862.pdfIn PDF document text
- http://konditsionery-reutov.ru/upload_picture/file/96026300356.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///73247166609.pdfIn PDF document text
- http://akcompany.vn/uploads/userfiles/file/99205897365.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc582eeca1---36663930731.pdfIn PDF document text
- https://movie2book.com/userfiles/file/nalemesa.pdfIn PDF document text
- http://royal-pizza.eu/files/file/mibamotarepudezivise.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/80346133118.pdfIn PDF document text
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/2b5b9cc67d14004a5a286afab4a06d92/95181021262.pdfIn PDF document text
- http://www.morrisjones.co.uk/EditorImages/file/2845682773.pdfIn PDF document text
- http://dmhu.eu/uploads/uplib/file/96684666848.pdfIn PDF document text
- https://marljivo.hr/userfiles/file/nosalabiwuvasuba.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_off0000da54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA54 | 10700 bytes |
SHA-256: 948b65482cb36bddcdd4a71fe94955cd7dfd54fbbfb57c57f55ba51ed1c468cb |
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font_01_sfnt_off0000f2e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E0 | 18548 bytes |
SHA-256: 3e96538bc0c6a3d757699badc891fd173f21f6fc046d2923568094a6cf67b498 |
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font_02_sfnt_off0001236f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1236F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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