MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of 'utm_term' in URLs indicates tracking, common in phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://irlanc.ru/uplcv?utm_term=maritime+english+test+questions+and+answers+pdf PDF link annotation
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607434e93dda0---zexajalipizinu.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c908600d876---66174630688.pdfIn PDF document text
- http://qtjdb.com/UploadFile/2021/05/21/file/20210521_133433_103.pdfIn PDF document text
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6a245767f---murotalavisixevunakiti.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609e94f3e5bba---76098204180.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/83354862e1d312b543b36c4ff1a4501c/tasexupokotetizewo.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/rafusezekusudobox.pdfIn PDF document text
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/4bf47cbed6334b6548e579c202631611/kobanigapefafiwezomava.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fbdea74dcc754e9f268266df0a33189a/12282847203.pdfIn PDF document text
- http://grimastone.ru/files/5509664973.pdfIn PDF document text
- http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/basunodilujenuruwuxozetep.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a28dd8f1521---11029858531.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/a5737c55186dfdfc463606677bbcf828/41056616176.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2586a6c58e---28084448719.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/b04h2kt66tdc0b8jpva7tcd4g0/74472108061.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/0353c00535e878d912f389f3bbcb905f/ragiruz.pdfIn PDF document text
- https://unosms.us/userfiles/file/60238301556.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_off00010813.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10813 | 5680 bytes |
SHA-256: 1d20918ee258001c0d7386603b2b2a38b7b71307613cb2e52abedb3ac9c5c27d |
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font_01_sfnt_off00011b4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B4B | 10964 bytes |
SHA-256: 8b729cd9d3ce35be637e39a8bf223ac247a270e8cbcabe92dac88d8a12a9ab7e |
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