MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to PDF files hosted on compromised CMS uploads, suggesting a phishing or malware distribution campaign. The presence of multiple external URIs and link farm heuristics supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 6
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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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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 http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c64d7c34b00---tiverukomoxidewofepetal.pdf In PDF document text
- https://verredistri.fr/xmedia/file/50794952068.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/8799793305.pdfIn PDF document text
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/c51ff9830cfb8b9070fde581f5ae0032/mubusimubal.pdfIn PDF document text
- http://fred-robin.com/ckfinder/userfiles/files/97514565999.pdfIn PDF document text
- http://24cvety.ru/upload/files/zelagawudovawigurojufij.pdfIn PDF document text
- http://benthanhsgfarm.com/images/uploads/files/vutomenifanubobefo.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/pej0j10amdrdp8q4fpia8m97f6/13297727527.pdfIn PDF document text
- http://schooldistrictservices.com/clients/f/f6/f6ab1571d2cdf5e569af7b76e288b17c/File/40789874883.pdfIn PDF document text
- http://studiolegalezullo.eu/userfiles/files/jepawewuvelozefudobu.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/ceba4b9c334aba6a1a02e4e9c4c0088e/gilab.pdfIn PDF document text
- https://actorconseil.com/files/file/95226572659.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/49080528459.pdfIn PDF document text
- http://progfin.pl/userfiles/file/67555659129.pdfIn PDF document text
- https://partner-support.net/user_data/userfiles/files/22463912813.pdfIn PDF document text
- http://christopherdallo.com/file/66509514232.pdfIn PDF document text
- https://metnar.pl/web/uploads/files/gebotiwizu.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4ea1d61a1---mewonatotekinamuwu.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/nokopijebu.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/ebe03e6e0a4f5798b309c7d98f8d5430/detomowuxubipuvufuzobuz.pdfIn PDF document text
- http://yesilderecine.com/admin/editor_resim/file/rixonotudilufu.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5912f0da55---75785052314.pdfIn PDF document text
- http://aceonlinementors.com/userfiles/file/jurovaluwiwefibimesuvepi.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f366c8ce8b7---7557460330.pdfIn PDF document text
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/jb0gr257qgrob9lksocbetuau1/jifodo.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16084d01a187a2---66381053533.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=my+teaching+strategies+gold+appPDF link annotation
- https://shop.teachingstrategies.com/In 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_off0000c6a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000debc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEBC | 10900 bytes |
SHA-256: c6e83c3e26ee0495b136d46e37aa5baaf1c7cab908578db7fc866103cdcac9f7 |
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font_02_sfnt_off0000f7af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7AF | 16492 bytes |
SHA-256: cd77d9f75dac98914a88f8dbe71c0d4224663b95c5a82993a89c0ec523f27328 |
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