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 0.9974
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=definition+of+realism+in+literature+pdf PDF link annotation
- https://balajitutorial.com/admin/userfiles/file/74377135562.pdfIn PDF document text
- http://mtsskzy.com/userfiles/file/48219851414.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/dp68o4e05r7cv91s2rno3vaamh/giwewajizonusinux.pdfIn PDF document text
- http://php-lounge.de/userfiles/file/80886917019.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bde8725f705---jozaxin.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f88704df630---52175938857.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072a6414ac48---fizusofebo.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/c387594a67e07cc479245400a3b5b5fe/98177366482.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608191e946e25---fukamotefatoremavageg.pdfIn PDF document text
- http://rld-carbon.ru/file/37461244818.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/f12b802b12db73dd18cb477ed3fb27f3/70958264360.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161085584e28de---32241308855.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ae6cf2523---46299505280.pdfIn PDF document text
- http://tipsclubcr.com/campannas/file/nikisabitetoludavodabufuv.pdfIn PDF document text
- https://maturana.cl/upload/file/rofijaluguz.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1607f175c1f54b---gofokufopojafudenovuga.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/64590098490.pdfIn PDF document text
- https://circolodelpistone.ch/userfiles/file/10913899597.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607b731d65de7---2242265139.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/e52b162b448941a032bac372fcf1d4b1/41918131838.pdfIn PDF document text
- https://its-bulgaria.bg/files/file/12619862418.pdfIn PDF document text
- http://fullx.net/files/12655588685.pdfIn PDF document text
- http://takeacode.net/user/d41d8cd98f00b204e9800998ecf8427e/file/96887071771.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/8decdb2663dfb6a39dc3fe2a7d5701c7/28753950631.pdfIn PDF document text
- https://maintogelonline2.com/contents//files/61053527775.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_off0000dd3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD3E | 10760 bytes |
SHA-256: f9840bb1b03bcfd704feb09528710299cd7d0e255bbe8a9e0a5ca691dd4f18aa |
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font_01_sfnt_off0000f5f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010e05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E05 | 17764 bytes |
SHA-256: 1656b109e2b62b6c714cfacb796e81f829aaae7f7834a78c45a1b10f1e11022b |
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