MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to external sites, several of which are hosted on compromised WordPress installations. This suggests a phishing or redirection scheme, likely intended to lead users to malicious content or further stages of an attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://ptsound.com/plugins/ckfinder/userfiles/files/pipipotomujejesuvob.pdf In PDF document text
- http://xmzs.org/userfiles/file/24265149236.pdfIn PDF document text
- http://tao-oita.com/admin/upload_filesfile/12784644935.pdfIn PDF document text
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/jakuverubuvuveduzeke.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/8091b0d1c023754b2f497ec081b094a2/wuwak.pdfIn PDF document text
- http://uhorder.com/upload/files/jogelezenori.pdfIn PDF document text
- http://hmondo.com/userData/board/file/zedapigamodifelotaxox.pdfIn PDF document text
- http://keacg.com/upload/files/58550661069.pdfIn PDF document text
- http://german-ex.com/images/blog/file/palenovakuxerapo.pdfIn PDF document text
- https://tapetcenter.ro/app/webroot/files/userfiles/files/77512723999.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-11/20210911015217553642.pdfIn PDF document text
- https://yaofangpeixun.com/upload/files/rikarupakezogulomojukev.pdfIn PDF document text
- http://nsmpublicschool.org/slbdavbatala/userfiles/file/42187454650.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136812d1d638---fosajupufi.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613400ae0bc70.pdfIn PDF document text
- http://thibangoto.com/app/webroot/uploads/files/2363043438.pdfIn PDF document text
- http://aotwresort.info/ckfinder/userfiles/files/zijudode.pdfIn PDF document text
- http://vhktn.at/images/content/files/guxuk.pdfIn PDF document text
- http://detaycopymatbaa.com/userfiles/file/tajeri.pdfIn PDF document text
- https://arhstroi.by/uploads/files/71120050384.pdfIn PDF document text
- https://vr-spagna-20.effievirtual.com/galeria/files/pofilejukina.pdfIn PDF document text
- http://shinaval.ru/userfiles/file/84870775485.pdfIn PDF document text
- https://brawlcall.com/ckfinder/userfiles/files/zonida.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16142fcb44ff8b---bideduvotafiturotobimuna.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=sms+on+computer+androidPDF 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_off0000d629.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD629 | 10804 bytes |
SHA-256: bd0aab5fe0bfd7fbd7e250b2a0596cc668ae945fa21f5a5cfd799913e2fe5d8c |
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font_01_sfnt_off0000ef05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF05 | 17760 bytes |
SHA-256: 0e3b41587c5ed00054b1840a8c5a5a6658d4060db3d821d806cd45be419acd7a |
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font_02_sfnt_off00011d22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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