MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS instances, suggesting a link farm or phishing operation. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://drgcode.managenet.ro/images/file/81143555483.pdf In PDF document text
- http://sanxuatbanthinghiem.org/app/webroot/uploads/files/vafugudezabid.pdfIn PDF document text
- https://funbugs.ie/files/file/sanujategor.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/18581397508.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210909221706341.pdfIn PDF document text
- https://marbletreasures.com/uploads/image/files/84761989508.pdfIn PDF document text
- http://sunwisechem.com/Uploadfiles/files/kebiwulomovarifesutureg.pdfIn PDF document text
- http://greenflameenergy.com/userfiles/file/78495161859.pdfIn PDF document text
- https://indiantalentjunction.com/milan/media/11496093928.pdfIn PDF document text
- http://lex-ter.ru/admin/ckfinder/userfiles/files/25477844927.pdfIn PDF document text
- https://et-auditing.com/userfiles/files/kotivikugebuk.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b846528b18---rolox.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/75264818502.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/665114fd26a25ed63404dc5144b03ff4/14215050854.pdfIn PDF document text
- http://urgentcarepb.com/userfiles/file/selemawopazasikubumok.pdfIn PDF document text
- https://curvy.tw/upload/files/nobinofuwenumeve.pdfIn PDF document text
- http://guowangcable.com/d/files/62037737828.pdfIn PDF document text
- http://lechioutdoor.com/userfiles/file/waxun.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/7n796g9n5866hmpjrbbkas7fv4/37589674523.pdfIn PDF document text
- http://daiichigroup.net/uploads/news_file/64265397884.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+connect+other+wifi+without+password+in+android+mobilePDF 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_off0000cdb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDB8 | 16948 bytes |
SHA-256: caa2a8d97e3b326a4b39d76886f567b558c11f709e787871cbcff0a9715b550b |
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font_01_sfnt_off0000f9a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000111bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111BB | 11200 bytes |
SHA-256: 9537e8769dff88997fb4bdbc797b73e9d28873be897f9352f5d5e3e980718399 |
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