MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute phishing content or further malware. Although no scripts were explicitly extracted, the nature of the URLs and the heuristic findings strongly indicate a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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=hiv+attacks+which+cells PDF link annotation
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/72f281ecdb17136e9d06fed8ca536bc6/zuxuxinuwewelusijusatef.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/3p3cqd5tvq8vdtqt40nss7pakb/fagabimirudogu.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f038c737d1---timadajo.pdfIn PDF document text
- http://aps-mes.com/files/file/76342591198.pdfIn PDF document text
- http://forma8.kz/ckfinder/userfiles/files/sitevonewijazux.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f01b8e5372c---lumowonubozek.pdfIn PDF document text
- http://rheinmotel.com/userfiles/file/96366815947.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/002426bd6d7b7ebc5928776f3a56dafb/busixidopuwozoxaka.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/52560550556.pdfIn PDF document text
- https://talaa-obour.com/webmisr/uploadwebmisr/file/vemasadidavon.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/be37b3be69d7262d010a7c45ed2762aa/vidovirovanimikow.pdfIn PDF document text
- https://petrovsky14.ru/docs/files/46056043188.pdfIn PDF document text
- http://dilimkebab.com/userfiles/file/53167435663.pdfIn PDF document text
- http://www.adarshvidhyasankul.org/userfilesfile/38365143194.pdfIn PDF document text
- https://optimuselearningschool.com/learning/site/images/uploadfiles/tatumujo.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/bulapik.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160988b1b957a9---38561299483.pdfIn PDF document text
- https://tortugafilms.ca/adminfiles/file/rigujesotiri.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/43714194052.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/hg93isg2qvk51j86ksf4j3ol17/xiludexe.pdfIn PDF document text
- http://www.oomedia.com.tw/ckfinder/userfiles/files/ruzofozu.pdfIn PDF document text
- https://fibaquitaine.fr/cebatrama/userfiles/files/redovake.pdfIn PDF document text
- https://istocdukkan.com/userfiles/files/lopamivobawesidexisivipo.pdfIn PDF document text
- http://almawred-sy.com/files/adminfiles/files/naxiruzatumexuboxok.pdfIn PDF document text
- http://wawabed.pl/uploads/userfiles/file/kubexixevakevewog.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_off0000d590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD590 | 16772 bytes |
SHA-256: 5cef9bdd38ce4df5b5e0af65969a371cedf0ce35f605435b1dc8c9a9e8dd6305 |
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font_01_sfnt_off0001010f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1010F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011926.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11926 | 10240 bytes |
SHA-256: 1ffadd6d55a6f3e07e58cb316c4ed416f2861a8ef7db0d79b7ea4130abc3ecdc |
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