MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while numerous, do not appear to directly execute code but serve as lures to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://vietnaminsight.biz/ckfinder/userfiles/files/tazorurukad.pdf In PDF document text
- http://sochi-polyana.com/ckfinder/userfiles/files/zuperakijetofigagufi.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/5707177136.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080cafe630c6---fororamefadogat.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca419f2db42---gekemevam.pdfIn PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/e71ugjdc61bikap9665qo88gb1/13216301030.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/ia4iobl48c4naqr5pbn1c1rtjd/41091687040.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a00ff960a4e---33139504134.pdfIn PDF document text
- http://toonesk.com/upload/wuragadagusofinip.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16081c4c7f059f---39980626912.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16082009822909---polapufebaka.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160982e63185c5---30815721816.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/28f509ee7103d7741a10149f2a23bf22/26026817202.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/v03t231tcke9esc7oaii59cdl0/28082113560.pdfIn PDF document text
- http://jechtinger-wein.com/jechtingen/files/64165328682.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de0077db0fb---41782862929.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f98d97312c---68728909019.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/4a3b7fa6d1fcac3920419b19eb227397/suxinabavom.pdfIn PDF document text
- http://quickvideo.nl/userfiles/file/46970490066.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb0320a572---59449292585.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/s5rlpkqofurkprf3ti2uihcu32/kuwonenoxulu.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/buvevilulelaradaderavif.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cc4be52c9---36924918613.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aed32861449---kupexez.pdfIn PDF document text
- https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/lepupomifajuzilaju.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=about+polyester+fibrePDF 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_off000139ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139EA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00015201.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15201 | 10420 bytes |
SHA-256: 16365356ce1e9113e2055a301a9517ac28d152fe024c766159f72f4d9a61102c |
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font_02_sfnt_off00016997.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16997 | 19404 bytes |
SHA-256: 85ed63b2a7e92fbd88a717b13fef9c9329c0ab7c5881a3095e1adecf51eec2a8 |
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