MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=autocad+2020+free+download+full+version+with+crack PDF link annotation
- https://zevkotodoseme.com/upload/ckfinder/files/956103747.pdfIn PDF document text
- https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/menugufad.pdfIn PDF document text
- http://ipceurope.eu/assets/file/sanexatuz.pdfIn PDF document text
- http://ainut.fi/userfiles/file/gufekexigasewap.pdfIn PDF document text
- http://samtekelektrik.com/files/99909682910.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/779c679f5441dc8733ae18a63fece405/remojovefupetu.pdfIn PDF document text
- https://fallsplat.se/file/velelevodozesenixeti.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a71b6a3fb6c---49700288685.pdfIn PDF document text
- http://nineslash.com/user_file/file/74665087655.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/xigaranus.pdfIn PDF document text
- https://marijina-romarska-pot.si/userfiles/file/69701215854.pdfIn PDF document text
- https://clinic4lab.com/upload/ckfinder_temp/files/20210627213457.pdfIn PDF document text
- https://www.retake.dk/ckfinder/userfiles/files/kelegivenolubujemuwese.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16077cf9dbd9ec---71628624782.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/72427392966.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/ss3glu7m9nlfnjcniajhrk6h5m/fapazuxiselibadibajofak.pdfIn PDF document text
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/j2gs3jdv4ti0rac4vv29cu8i9p/jovoporoxi.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/92851273975.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073990b0d7aa---jarepasela.pdfIn PDF document text
- http://chapelguild.com/images/usr/7686313190.pdfIn PDF document text
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/23107540844.pdfIn PDF document text
- https://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/h21lnto5asf026vrtrf2mjvc3m/tatumurinumigide.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/e7a9f6b2bc32d7e1b016b2e84b5e204b/89468463617.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_off0000d2bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2BC | 11140 bytes |
SHA-256: cb44f0dfd3a6f0870314db56ca1b1499675b284a8d1f69bdc556d0208b773c96 |
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font_01_sfnt_off0000ecda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECDA | 17260 bytes |
SHA-256: f44e8c38bda4207ae3760372bddf2a9905459847384491a97edff184196272c9 |
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font_02_sfnt_off000119ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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