MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised websites or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of a link farm on potentially compromised or disposable hosting, as identified by heuristics, supports the conclusion that this document is designed to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://tjsyjdq.com/v15/Upload/file/202199185007628.pdf In PDF document text
- http://firsttimehomebuyerstudy.com/images/file/91427323276.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161345af8181e6---ruzizibilaborakubonopol.pdfIn PDF document text
- http://dirpub.org/editor/ckfinder/userfiles/files/jivabekajazitu.pdfIn PDF document text
- http://druckmaschinenservice.com/uploads/fce/files/61121021989.pdfIn PDF document text
- http://abbeloosschinkels.be/userfiles/file/47559344184.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/32f5cd20971591623dfb7fecd0c16d9e/vuwigasixomemevomukibu.pdfIn PDF document text
- https://yukkumpulgroup1.com/contents/files/sogokararaliruluxet.pdfIn PDF document text
- https://simorgh.it/uploads/file/52257915750.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/jj7dfl5bo2onj8lbm21jk741hu/bubes.pdfIn PDF document text
- https://rentcar888.com/uploads/files/202109110213204423.pdfIn PDF document text
- http://nscenter.cn/upload/files/28085256798.pdfIn PDF document text
- http://mrtowing.ca/Lawyers/userfiles/file/xaxixibaw.pdfIn PDF document text
- http://mastervgtour.by/var/upload/file/45022467739.pdfIn PDF document text
- https://emenu.hu/editor_up/88178613938.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/wetoberewigatedoxikilega.pdfIn PDF document text
- https://chingchia.com/uploads/files/202109052254209001.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613da94c6207d---kerebogebakolujufojagum.pdfIn PDF document text
- http://www.focitabor.hu/userfiles/file/videnuxanojipusakeniduza.pdfIn PDF document text
- https://sanaspinler.net/calisma2/files/uploads/95384991019.pdfIn PDF document text
- https://dbmotorbrokers.com/userfiles/file/71397357552.pdfIn PDF document text
- https://sieuthigo.vn/upload/ck/files/59123035599.pdfIn PDF document text
- https://realxenon.ru/uploads/files/32764962598.pdfIn PDF document text
- http://archidaldegan.eu/userfiles/files/23428495696.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=spider+man+amazing+game+downloadPDF 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_off0000dbb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB7 | 17464 bytes |
SHA-256: ac54d61360da453c9b1ac593bcb078441a60b955edc4793f059538aaa0a82ce9 |
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font_01_sfnt_off000108a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000120b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120B8 | 10692 bytes |
SHA-256: 434b19a315a07ab0f41ae94dbf3e1ac15c8aa0adc720347ad96ea601470020e2 |
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