MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. No scripts were extracted, but the presence of numerous URLs indicates a likely intent to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://huntic.ru/uplcv?utm_term=gayle+rubin+the+traffic+in+women+pdf PDF link annotation
- http://mp-journal.com/media/file/kilizurijoju.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/381eca516c74970ebd0a68004d0c8046/9114774182.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/131291bc4427ac66ccf25ef0e4b60894/46001010279.pdfIn PDF document text
- https://faprosid.com/file/8815441094.pdfIn PDF document text
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/ee5d0475d7599a0636067592e545bf3a/sirepapa.pdfIn PDF document text
- http://zuestag.ch/userfiles/files/25874403685.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f9eedd2e8---boxataromizo.pdfIn PDF document text
- http://kap-group.com/ckfinder/userfiles/files/xeziwupiloruparirodipi.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/58616593473.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085ae6aa5e04---60315213723.pdfIn PDF document text
- http://taeguektour.com/FileData/ckfinder/files/20210531_844CADDF6AC520B6.pdfIn PDF document text
- http://cathugo.de/res/wysiwyg/file/38166202279.pdfIn PDF document text
- https://kurishupally.org/userfiles/file/gopogagetetexezinunok.pdfIn PDF document text
- http://interiorconsignments.com/media/file/gifiwivepaput.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/mv3h0sb67s2ueeeqhjss8jqnl5/22370870330.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080e49053c2d---dowukifigibusufaf.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/69049125160.pdfIn PDF document text
- http://aep-tc.com/cache/fck_files/file/zopowawopobajukizi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00025765.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25765 | 5584 bytes |
SHA-256: b2695a3b106b5e98e331cff9586f3629597f5d93557f7d4bc29537b94b22c2a3 |
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font_01_sfnt_off00026a4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x26A4A | 11236 bytes |
SHA-256: c78233681d525797f96c49fe61600f11fa628dea6c2d95c4dbcd3a0e9eccf326 |
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