MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and link farm heuristics indicates an attempt to distribute or phish.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://almar-bus.pl/userfiles/file/businu.pdf In PDF document text
- https://novsport.com/content/File/xegem.pdfIn PDF document text
- https://khangle.vn/uploads/images/files/44471774519.pdfIn PDF document text
- https://vetregistr.com/ckfinder/userfiles/files/93143941379.pdfIn PDF document text
- http://mazraeir.com/images/upload/files/28440808798.pdfIn PDF document text
- https://reclamesticker.nl/images/uploads/file/In PDF document text
- http://remont-etalon.ru/upload/files/xosuwowawox.pdfIn PDF document text
- http://bytip.net/filespath/files/20210902190714.pdfIn PDF document text
- https://gaadalagi.com/contents/files/xemetemixilasod.pdfIn PDF document text
- https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/71967247645.pdfIn PDF document text
- http://nzozkrowodrza.pl/uploads/editor/file/pewowi.pdfIn PDF document text
- https://padservhosting.com/userfiles/file/72834806794.pdfIn PDF document text
- https://remini.hu/userfiles/file/babepuxabuwefis.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/d32cd360f3347bcf31e2f24ba500dc4a/fiwekafi.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613526f4c8f42---penabosexewebubusevuri.pdfIn PDF document text
- https://grandhotelushba.com/userfiles/file/66971243054.pdfIn PDF document text
- http://munnarinfo.in/userfiles/file/7705304441.pdfIn PDF document text
- http://alexdisinfestazioni.com/userfiles/files/rozukakasaturileva.pdfIn PDF document text
- http://terrietanaka.com/library/files/56761500453.pdfIn PDF document text
- http://sinoorchids.com/image/file/xizoxuwele.pdfIn PDF document text
- https://badoza.net/userfiles/file/43947420301.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/36490322494.pdfIn PDF document text
- https://rougezenekar.hu/files/file/14510689970.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac4cb61212---puxijidefew.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=what+are+the+effects+of+deforestation+on+animalsPDF 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_off0000dbc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3DB | 10732 bytes |
SHA-256: 4812e3c14cdd8c3fb78ee781045359211dfb555bb920d03d791dce8dc1583ce8 |
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font_02_sfnt_off00010c51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C51 | 16880 bytes |
SHA-256: ccf3530df7a440dad931d9b0553e32d3d1627df17226d1221ccbda639306a518 |
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