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 it is likely a phishing or malware distribution lure. The document contains a large number of embedded URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of 'utm_term' parameters in some URLs further supports a phishing or SEO poisoning campaign.
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 https://crysiq.ru/uplcv?utm_term=primeiras+aulas+de+viol%C3%A3o+pdf PDF link annotation
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/fapomorowukabunuzuzubi.pdfIn PDF document text
- https://summit-christian-academy.org/scauserfiles/files/duravilenav.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160ec459223532---tesabaluruvewebuzafevuvil.pdfIn PDF document text
- http://thermocomfort.ca/userfiles/file/tuzonazajunevowetozamife.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/e5665e44bd4955d1a8e622f58bc3127c/kupamujotimopunadekewu.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160a48931b884b---90300860974.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/85837042179.pdfIn PDF document text
- http://hakkabrothers.com/userfiles/file///nuxirobixifagem.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/srb0iim33d9uauttkvqnc3iqg8/merajirudeviranezixobukoj.pdfIn PDF document text
- http://dienlanhtruongson.com/upload/files/vodinonejim.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/9c8e816d29c52820614aef3795804af2/22976045992.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607d22b2ae099---kexivemulaxik.pdfIn PDF document text
- http://dvarenda.ru/upload/file/46207715842.pdfIn PDF document text
- http://texasstatealphaxialumnae.com/clients/f/fe/fe72632f573fdc77cca6b85875c63e8a/File/48660663013.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160810fee26663---zigukiwopu.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb1e725f23e---votawatesofisuporelamon.pdfIn PDF document text
- https://businesslife.com/content/file/vipateduxuwogelidak.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/legilululibovadudipe.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/46e2c9g91havpfmjn51h0618h7/95881277364.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722cf29f04e---85814630806.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/50055413506.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/11364800301.pdfIn PDF document text
- http://modamoda.nl/uploads/pic_lib/file/sufek.pdfIn PDF document text
- http://autoscuolemontagna.it/userfiles/files/fijetejosubopujulokag.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/gibaxonalukawiwuzij.pdfIn 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_off0000e90b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE90B | 20900 bytes |
SHA-256: f969791b6bc0ec16137e859e1ff8f9fa426edb20eae3b10d02380118d115ef09 |
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font_01_sfnt_off00011cfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CFE | 10888 bytes |
SHA-256: 7e8202c02e0a57502c6ee650fe332d7a4f0c3403b0d47e7bd18342140e7622b6 |
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font_02_sfnt_off000135bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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