MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these links and the heuristic firings strongly suggest an attempt to deliver a secondary payload or phish for credentials.
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://feniks9.ru/ckfinder/userfiles/files/91272355141.pdf In PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/litabigesojogu.pdfIn PDF document text
- http://stluciachamber.org/uploadedImages/contentImg/file/pasaz.pdfIn PDF document text
- http://dgone.kr/userfiles/file/20210907053211.pdfIn PDF document text
- http://chengzechem.com/upload/files/5126148786.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc48ba342b---zomatexepufaremonap.pdfIn PDF document text
- http://equipociclistaugeraga.com/ciclistas/userfiles/file/35973078605.pdfIn PDF document text
- http://vinhhangvien.com/upload/files/57666210326.pdfIn PDF document text
- http://strandedtattoo.com/file/97407977168.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd035246ae---rujovidul.pdfIn PDF document text
- http://jadeite.ru/images/file/tasiki.pdfIn PDF document text
- https://glamweddingdesign.com/userfiles/file/wefiliwaze.pdfIn PDF document text
- http://dataprint.ie/uploads/file/61307541488.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/pojusejo.pdfIn PDF document text
- http://msslink.ru/userfiles/files/95210911360.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/44873530893.pdfIn PDF document text
- http://clearspace-design.com/CKEdit/upload/files/52177726527.pdfIn PDF document text
- https://alcoquimicos.com/ckfinder/userfiles/files/44480887222.pdfIn PDF document text
- http://cheliabinsk.realxenon.ru/uploads/files/wegurulokexowe.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/2335c0a759da9bcdfa45ce55caa41ea9/jatatabarujelewerirob.pdfIn PDF document text
- http://asbazainville.org/userfiles/file/9464509069.pdfIn PDF document text
- http://mijinmotor.com/fckeditor/userfiles/file/zutiwuramajavatufojajur.pdfIn PDF document text
- http://villaelen.it/userfiles/files/petajaj.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=gradle+deploy+to+artifactoryPDF 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_off0000b2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B7 | 15348 bytes |
SHA-256: 7db29bd87f29cd4b27e0bb32f87d1245eb27b44e0f31952b54518001c63e886f |
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font_01_sfnt_off0000d990.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD990 | 10492 bytes |
SHA-256: 251c1f1f54bdbb8c6ab03fb7b19a3fd2495d4ff7690ab2b2e48ae59db7846ed8 |
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font_02_sfnt_off0000f190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF190 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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