MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external PDF files hosted on potentially compromised websites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a phishing or malware distribution campaign leveraging these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://stylekd.ru/files/wilozaloliwumuwalusi.pdf In PDF document text
- http://bajcsidavidfoto.com/_user/file/lamisavefikekilipa.pdfIn PDF document text
- http://designbeginnings.com/upload/file/tilikazenuvukavelak.pdfIn PDF document text
- http://aldara-latinoamerica.com/userfiles/file/welegekifi.pdfIn PDF document text
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/73062e08274fc8d1518ff8638d3dcd6e/foxawo.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/87415629871.pdfIn PDF document text
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/954eef70b470aca5827c0a4bd4ffb038/46332255198.pdfIn PDF document text
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/fukibaxezuruniwuzeperoz.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/aee3312254dc95044611569eba72dec3/duxin.pdfIn PDF document text
- http://odontoflash.eu/userfiles/files/guperalenikosamadujeg.pdfIn PDF document text
- https://ladangmimpi.com/contents//files/2379049161.pdfIn PDF document text
- https://grnca.org/img/files/files/77878367888.pdfIn PDF document text
- http://phuongdonggolf.vn/app/webroot/uploads/files/xiwusonagowow.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/1a4b3e304804b61335bfc81037452471/butir.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/12048111df32880189f8a7aa5233ff07/lomomuvololatasomamafaji.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9939b1ec99---67317368687.pdfIn PDF document text
- https://perfecthospitals.com/ckfinder/userfiles/files/74945618301.pdfIn PDF document text
- http://xn--80aaaaaikdebj9ccf1ayja1b5a3q.xn--p1ai/ckfinder/userfiles/files/risawogazisizidonanupu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=grid+square+mapPDF 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_off0000e6e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6E0 | 10468 bytes |
SHA-256: bef6b1b319d20d386ffac58dedb6b3b361866902db371aa2e7cdbd36fdc7d425 |
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font_01_sfnt_off0000fe73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11685 | 18444 bytes |
SHA-256: b5aa3cf888a33413d81a795937b4325dfd9b3a3c92b83b3c2e468a647ff9304b |
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