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 0.9997
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://drafthe.ru/uplcv?utm_term=rd+sharma+maths+book+class+11+free+download+pdf PDF link annotation
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609785a7d53ff---wimukoniluvirid.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/77484447591.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/2db8e77cf5dda11598abe838d966f2e4/kidin.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0bd5e4775---simubebikaluwumopu.pdfIn PDF document text
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/82272362990.pdfIn PDF document text
- https://boumqueur-edition.com/upload/fckeditor/file/3519125582.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ba75d49c5---28941939370.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ff72eaf6c---24341607441.pdfIn PDF document text
- https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/436a5c8e38211ba68515ed0faa6c7360/45735588704.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c776a26f50---ginapodijogo.pdfIn PDF document text
- http://forter.vn/hinhanh/file/11125354473.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a658b48a44---tuvafalosora.pdfIn PDF document text
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/bba2cef4dd28abe90e446eb4f9246a74/37228384745.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/180ad25df1dc8ba34aa3f4d70044b107/bivubifukamugapa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fffe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFE | 5752 bytes |
SHA-256: b45c7af53c022ba8f5f81715a4c9b7f844b322e2e2a74558ef57b4835a01ee3c |
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font_01_sfnt_off0001137c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1137C | 12480 bytes |
SHA-256: 8c581909717e7437d70bfa5e9376c0077969af1b060a5bdc51ee7aeb29a042f8 |
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