MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/c8ubb867poi34epk1bvkp6iu8r/31630403553.pdf In PDF document text
- http://plastikacz.cz/soubory/files/kevukisojixalorolu.pdfIn PDF document text
- https://vientangluc.com/upload/files/34644614061.pdfIn PDF document text
- https://mahae.hu/files/files/waviletezetedevotutomuziw.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16086b532d03c0---voladunafegigajev.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/fegoxuputitubamilo.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d0808643c---34136387470.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608389667a802---gatoxogo.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/4da3131ff9bcc348ef3cb75d324d8955/18692742421.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/kepodun.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16089187cb2229---faxik.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/7fd913ab5636aa6b1f903a7795f75e00/perabokuk.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/18327629634.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/vesadatusubewinazeba.pdfIn PDF document text
- https://notrepanierbio.ch/userfiles/file/83097065414.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/ftskm9j1d9g8a6572n5g3bjrh2/78026310727.pdfIn PDF document text
- http://elementsgogreen.com/userfiles/file/bakanovetorezorabev.pdfIn PDF document text
- https://aradovan.com/userfiles/file/ridefowafisa.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16095b286c9cd9---vijagusiz.pdfIn PDF document text
- https://weddingitaly.jp/images/file/mukukifu.pdfIn PDF document text
- https://salvatoredivilio.it/userfiles/file/nixufajosozasijudex.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/eaaef57963186ae071e92d778806bc63/80516665700.pdfIn PDF document text
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080539966a3a---64596681329.pdfIn PDF document text
- http://klpa.net/userData/board/file/43000515126.pdfIn PDF document text
- https://sportsht.com/userfiles/file/ledoximoduburixosimamuv.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/f1e4b148277560d9bc28222ba5c80331/fubaruvarulusonobuvazidew.pdfIn PDF document text
- https://kis-u.com/page_data/file/20210619131052.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=direct+and+indirect+speech+test+for+class+9PDF 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_off0000f38a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ba1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA1 | 10888 bytes |
SHA-256: 492a48ef5531313d2be90cc309a5d832772dc3a7a76383490083d6a3bfb28931 |
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font_02_sfnt_off000124bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124BB | 16872 bytes |
SHA-256: 019c9bcb5b04e4dd1f9936b3f59c569d5fa50fda5347677db1a2316f65a94465 |
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