MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly suggest this PDF is a phishing or malware distribution tool. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://archism.ru/uplcv?utm_term=words+that+start+with+c+and+end+with+y PDF link annotation
- http://shanghaicruiseparty.com/uploads/file/99994162471.pdfIn PDF document text
- https://drinkpoint.com/uploads/files/59270913574.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4bfdc3517---73946524221.pdfIn PDF document text
- https://www.prshots.com/ckfinder/userfiles/files/livagixijolunifiwomufaja.pdfIn PDF document text
- https://vgi-vn.vn/app/webroot/img/files/makigolu.pdfIn PDF document text
- https://campermagazine.tv/public/file/55274007931.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315f9c92160---43916926107.pdfIn PDF document text
- https://stichtingech.org/ckfinder/userfiles/files/39424544206.pdfIn PDF document text
- https://baruipur.org/ckfinder/userfiles/files/2252258031.pdfIn PDF document text
- http://tolltisztitas.eu/userfiles/files/35245991428.pdfIn PDF document text
- https://bya-ingenieria.com/ckfinder/userfiles/files/lonesipa.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/30657051828.pdfIn PDF document text
- http://robotsuk.com/luckingbros.co.uk/userfiles/files/66600874468.pdfIn PDF document text
- http://tg-focus.ru/userfiles/files/luzulitogizuvokixazijo.pdfIn PDF document text
- https://madeirashopping.com/userfiles/file/34985279115.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/e26059e05f45e3bbdb78a3fa1fbdbb76/27262286138.pdfIn PDF document text
- https://k-newsletter.com/ckupload/files/tomegez.pdfIn PDF document text
- https://istanajp.com/contents/files/51961506580.pdfIn PDF document text
- http://globalbizkorea.com/userData/board/file/bitigogo.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/49877882298.pdfIn PDF document text
- http://elai.kz/upload/2021/09files/210903190306768947bdo2i.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/robuzajafeb.pdfIn PDF document text
- https://stef-nancy.fr/upload/document/20531810721.pdfIn PDF document text
- https://dintek.eu/uploads/file/12838988348.pdfIn PDF document text
- http://orthodoxvaidikasanghom.org/userfiles/file/firazeleligisunizagob.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_off0000cfb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB5 | 10616 bytes |
SHA-256: 80a4a9f98433b890033033afa653e617ef1191340f2d7a861392b6cd90d56732 |
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font_01_sfnt_off0000e803.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE803 | 18220 bytes |
SHA-256: a77bfc9bf67b982ff1031c87cac89cb9d887c981ed9de2fa464f7f20883d46c6 |
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font_02_sfnt_off00011660.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11660 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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