MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a deliberate attempt to create a link farm for malicious purposes. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612dacc7af4e5---41186566323.pdf In PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/81fdabb2a67a7d722df06be3d481be9d/xojavegak.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/4010670913.pdfIn PDF document text
- http://www.ximangsongthao.com.vn/app/webroot/uploads/files/lasaf.pdfIn PDF document text
- https://vzglavniki.net/data/file/jomozezananokiwo.pdfIn PDF document text
- http://dyweisheng.com/uploadfile/file/2021081708274173499.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/0ec466ac1a170804902ceb84df5410b9/livifiwotuwilifev.pdfIn PDF document text
- http://americandeliorder.com/uploads/files/livexetasikugabixipuma.pdfIn PDF document text
- http://prosquash.by/data/nenadunarafutape.pdfIn PDF document text
- https://ewastexperts.com/userfiles/files/84574225745.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/ffbef4200ccb6cdaa3f455cf2f42b4c1/negag.pdfIn PDF document text
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/4c4b474caa9fb7aaeafd528ba219e3a8/1153359867.pdfIn PDF document text
- http://pospatrans.cz/UserFiles/File/90069259763.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075c10c57732---81449819380.pdfIn PDF document text
- http://cfacgroup.com/uploads/FCK_files/file/84478445981.pdfIn PDF document text
- http://pajurioverslas.lt/ckfinder/userfiles/files/xupijorabipivit.pdfIn PDF document text
- https://aulacvn.com/upload/fck/file/xeloparepakinivifuf.pdfIn PDF document text
- http://insureavisitor.com/userfiles/file/60242597936.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/19855949247.pdfIn PDF document text
- http://ambulatorioveterinarioilprato.eu/userfiles/files/19504456463.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/7ghngfft5ppv2hno5p634jg0a4/38976948320.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=cisco+virl+tutorial+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_off0000c905.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC905 | 10576 bytes |
SHA-256: d74baf04f96a8649dd282db3e16bfa4dd1b35969218d2c8f80e5394eea8976aa |
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font_01_sfnt_off0000e159.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE159 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f96b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF96B | 16568 bytes |
SHA-256: 12bc7e4dff7a0240a5068d0d0c8a44499b66c209a578d021e086e7f1a343c0c3 |
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