MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://krisoc.ru/uplcv?utm_term=doom+on+android+download PDF link annotation
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac0996de48---86955044043.pdfIn PDF document text
- http://iehyun.com/editorupload/file/fakerugiwinimitujelodu.pdfIn PDF document text
- http://licausi.it/userfiles/files/81340032381.pdfIn PDF document text
- http://ajarnveerapong.com/UserFiles/file/31061543123.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-16/20210916194559251008.pdfIn PDF document text
- http://maivietnamesecotati.com/uploads/files/sejubesoz.pdfIn PDF document text
- http://controlsystemco.com/cache/fck_files/file/41408628396.pdfIn PDF document text
- https://afra24.com/basefile/afra24/files/gavukubibekevulopefegubir.pdfIn PDF document text
- http://bayernglobal.de/userVZ/file/sunuwofazavotesi.pdfIn PDF document text
- http://dongphat.net/upload/files/rivegu.pdfIn PDF document text
- http://studiomuraca.eu/userfiles/files/23830015644.pdfIn PDF document text
- https://doina.md/fckeditorfiles/file/zivupuxexivisalejelebo.pdfIn PDF document text
- http://first-group.kr/ckupload/files/gezerazadigonifadafasip.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161461bcc7d541---gufarufitite.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/98393681968.pdfIn PDF document text
- http://secretlove.ch/ckfinder/userfiles/files/sonipogoneruwawivametaf.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614112b0e7733---nasunosovurureritati.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/17937577009.pdfIn PDF document text
- https://sikanderajam.com/Robinson/ckfinder/userfiles/files/79133313563.pdfIn PDF document text
- http://cnsgawefgl.netsociality.com/upload/files/rixefurojimawafefe.pdfIn PDF document text
- https://phatgiaolongan.com/upload/ckupload/files/vosufozog.pdfIn PDF document text
- http://dkkarsin.pl/img/upload/files/tazik.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_off0000ac8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC8B | 10100 bytes |
SHA-256: 33189ed05cb46ab10163be7fb1f0354a41ee3737a7fa41748891a7cbc05f2be1 |
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font_01_sfnt_off0000c2ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000db00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB00 | 14488 bytes |
SHA-256: 4a8b3ebef665ec102066088b38ed9ca830c0c18cf2a56a7413da9f059cc6e395 |
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