MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many URLs pointing to potentially compromised websites or disposable hosting, suggesting a phishing or malware distribution attempt. The presence of embedded URLs and the nature of the heuristics strongly indicate a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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=utorrent+pro+free+apk PDF link annotation
- http://bojovesporty.cz/userfiles/file/zonapemukuluroganobuxise.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/82105605785.pdfIn PDF document text
- http://goldmustang.ru/files/files/zawuli.pdfIn PDF document text
- http://varosom.hu/userfiles/files/wafinifepofodojetotoxew.pdfIn PDF document text
- http://studiolorenzoni.eu/userfiles/files/fajamurizagekexenexexi.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16136248b9e7ae---fupinagubufurujofibemega.pdfIn PDF document text
- http://centralcogtc.com/uploads/file/supipuxefigodumixanonadak.pdfIn PDF document text
- https://full-e.com/app/webroot/userfiles/files/20210922_165806.pdfIn PDF document text
- https://tramtron.vn/uploads/files/files/zubajurevoluboxitet.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/236e8f0e8bb085b7adbf4f9de15969ca/84379511396.pdfIn PDF document text
- http://yakutiaprime.ru/SITE/files/editor/file/28176524998.pdfIn PDF document text
- https://pellevah.com/upload/files/todot.pdfIn PDF document text
- http://tyros-club.de/userfiles/file/nofufukekemu.pdfIn PDF document text
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/62218273153.pdfIn PDF document text
- https://heuresromantiques.com/upload/files/66032973992.pdfIn PDF document text
- http://ankurgroups.com/userfiles/file/80384314455.pdfIn PDF document text
- https://shturnev.com/files/foFKED/file/88560152686.pdfIn PDF document text
- https://inprovitecuador.com/ckfinder/userfiles/files/19731923305.pdfIn PDF document text
- http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/pebatazuzobufimanezepepip.pdfIn PDF document text
- http://tv-kitchen.ru/files/files/40759204824.pdfIn PDF document text
- https://stvorki.ru/files/file/lifajuvegikikebo.pdfIn PDF document text
- https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/98146089141.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4ca6194b5---fekedevizenasakok.pdfIn PDF document text
- http://lsbwg.com/ckfinder/userfiles/files/20210918/1535116059.pdfIn PDF document text
- http://forum-auto.ru/data/files/zewiwiditexozona.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_off0000cc95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC95 | 10144 bytes |
SHA-256: 31881d3cbaaa2353633c7999be2ff177848269ea25ce31203b894dcde881bac2 |
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font_01_sfnt_off0000e362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE362 | 17180 bytes |
SHA-256: afec254be86882b2c7a1f358e364111262f84ae6845d65721b8d47d5637ae446 |
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font_02_sfnt_off00010fd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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