MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous URLs, many of which point to compromised websites or are part of a link farm, suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://oniceh.ru/uplcv?utm_term=asus+rog+phone+5+geekbench PDF link annotation
- http://warwick-ems.org/userfiles/file/vinenurukukedevovutewak.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/161346348a95e1---5813013926.pdfIn PDF document text
- http://tythb.com/uploadfile/files/susesexogegakiwiteguguxol.pdfIn PDF document text
- http://rurisnet.org/images/file/50001223099.pdfIn PDF document text
- http://think6.net/ckfinder/userfiles/files/20210909100350.pdfIn PDF document text
- http://logenamerica.com/userfiles/file/76090955994.pdfIn PDF document text
- https://lbk-ingatlan.hu/uploads/file/xobubewonunopike.pdfIn PDF document text
- https://bursac.net/userfiles/file/43148252470.pdfIn PDF document text
- http://studiotecnicodavico.eu/userfiles/files/jabusof.pdfIn PDF document text
- https://nusamulticentralestari.com/Uploads/userfiles/files/muwovobeporuzedujaxug.pdfIn PDF document text
- http://isystem.hu/userfiles/file/pujuv.pdfIn PDF document text
- http://wtmongolia.com/materials/file/9506869295.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/161408f998e1e7---72105130474.pdfIn PDF document text
- https://cualuoihoanmy.com/uploads/userfiles/file/jomizivisaw.pdfIn PDF document text
- http://byecook.com/ckupload/files/xozifakefe.pdfIn PDF document text
- https://geelaboba.dswip.com/ci/userfiles/files/91107230402.pdfIn PDF document text
- http://marienoellebermond.com/img/uploaded/file/51832448201.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6b82a9036---57779918034.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613c503404ffc---75853068273.pdfIn PDF document text
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/95681054600.pdfIn PDF document text
- https://monyetjoget.com/contents/files/46138798888.pdfIn PDF document text
- https://ssmavidiyar.com/public/content-images/files/59569563616.pdfIn PDF document text
- https://holycrosshealthcare.com/userfiles/files/talavebozofeju.pdfIn PDF document text
- https://okazionche.com/files/bikakobepokijaxitolifugom.pdfIn PDF document text
- http://chinahk-ip.com/chinahk_ip/html/files/editor/file/60896453686.pdfIn PDF document text
- http://luckdidea.com/ckfinder/images_store/files/44987701914.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_off0000e088.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE088 | 10704 bytes |
SHA-256: a150751b0f0a792bfd81f8a370fcdb57f93dcdf167cd5919c324df3bf8c103dc |
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font_01_sfnt_off0000f8dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DD | 18084 bytes |
SHA-256: cf15096eb063e69cbb7136d5cb3dbfeff5ea0197981ba351f5bf8711c7dc189f |
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font_02_sfnt_off000127c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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