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 0.9867
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://drrajanmahtani.com/userfiles/files/vokixuzezokotola.pdf In PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7834a424be---41087095567.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b371bebbb22---wakonudagoluvuxij.pdfIn PDF document text
- http://markfarolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rozajutisapod.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f970c7756f8---fixefuke.pdfIn PDF document text
- http://biurod9.pl/public/userfiles/file/90313250277.pdfIn PDF document text
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/7b04580fe063e9cb82481fe5cb765b79/8333121785.pdfIn PDF document text
- http://baugeraeteverleih.de/benutzerdateien/belabu.pdfIn PDF document text
- https://toskov-yordanov.com/userfiles/file/33777752635.pdfIn PDF document text
- http://brightwayconsultancyservices.com/userfiles/file/58253779007.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1609c18df0dbc2---97910885407.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/bad375363bdc396a2fac0d3641c58aef/82371390839.pdfIn PDF document text
- http://royalwedding.jp/images/blog//file/ramajaxaza.pdfIn PDF document text
- https://orangerun.re/photo/files/duwipujifasemavezokukit.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078a31ea956c---gajuvimatapel.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbc529e8bd---1425370268.pdfIn PDF document text
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a798c104d---90162522767.pdfIn PDF document text
- http://asorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rubatejijazuvake.pdfIn PDF document text
- http://sochisushi.nl/survey/userfiles/files/gowudon.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bd22cf4267c---figajuxovifupivepove.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070611cd4031---38322833382.pdfIn PDF document text
- http://cdwy028.com/uploadfile/file/20210618012117.pdfIn PDF document text
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/mspunr3ssr2g2u93t76ahh7b5o/wukunefizefilaziligefe.pdfIn PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/75fdad1255e5e9b428484413c66846f3/26622375267.pdfIn PDF document text
- http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/fazuwekofoxin.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f836cad003a---vuzuzogefumefurekix.pdfIn PDF document text
- http://floridare.ru/app/webroot/img/uploads/file/001903_najeluvebapibe.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160960b1b1ab39---81376544159.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=mpsc+mains+paper+pdfPDF 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_off000124c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00013cda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CDA | 19260 bytes |
SHA-256: b2500d5effa3f47186a66bd74e2d92082d56dbc3a9cc551477be7a7efa881393 |
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font_02_sfnt_off00016d84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D84 | 10512 bytes |
SHA-256: 64baad6a7a8245cbd26f02a47d773964feda786b4a435a3c4514ff8e9ba7aca8 |
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