MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress uploads and other disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded links point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://intersonik.eu/upload/files/74746234575.pdf In PDF document text
- https://mytekas.com/UserFiles/file/xusilagubenoxexo.pdfIn PDF document text
- https://peusch.lu/userfiles/files/wopom.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161419afe17d60---fenigurukusizeg.pdfIn PDF document text
- http://nj-rshb.com/v15/Upload/file/202191775405633.pdfIn PDF document text
- http://www.egavilanes.com/ckfinder/userfiles/files/fajozasa.pdfIn PDF document text
- http://alituncer.net/userfiles/file/70549914471.pdfIn PDF document text
- http://lactopad.com/uploads/files/94401794983.pdfIn PDF document text
- https://binhvi.com/upload/files/munelujopuso.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/4af822ef25e82c37c209229f6c352f7b/66478015273.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/44291415174.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16130a71e11395---ramijegotibudunaveburiv.pdfIn PDF document text
- https://fluffy-chins.com/images/file/votikalele.pdfIn PDF document text
- https://autoteam.in/ckfinder/userfiles/files/74793886928.pdfIn PDF document text
- http://zpkprzemysl.pl/ckfinder/userfiles/files/80163117492.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/wogofox.pdfIn PDF document text
- https://ikuseikyokai.jp/ckmedia/files/jikazuraxiwuwu.pdfIn PDF document text
- http://handsonmontessoripk.com/userfiles/files/famepubesanozosu.pdfIn PDF document text
- https://kawanmto.info/contents/files/maguduvabajutixewolidap.pdfIn PDF document text
- http://nuovartea.eu/userfiles/files/wadivuvuwux.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=i+think+so+meaning+in+malayalamPDF link annotation
- https://www.thc.gda.pl/ckfinder/userfiles/files/mawekitifuwixut.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_off0000c3ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3AB | 20936 bytes |
SHA-256: 5e84daf42074f61d4bd1df517274aefa16b42ed5c9237b275575a0ee210a8e2f |
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font_01_sfnt_off0000fb61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB61 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011378.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11378 | 10612 bytes |
SHA-256: 5e54c11118f01eb28ef7e37b07d4c96f11a952aee1d0ec9bb3c2e9db8f584e52 |
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