MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm with numerous URLs pointing to potentially compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of external URIs and a link farm indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wastran.ru/uplcv?utm_term=how+to+clean+up+internal+storage+on+android+phone PDF link annotation
- https://trompis-tondschungel.de/userfiles/file/81304153478.pdfIn PDF document text
- https://vipbeachhouse.com/uploads/editor/file/11808996739.pdfIn PDF document text
- http://mindatpeace.us/uploads/files/26159832492.pdfIn PDF document text
- https://wegofa.com/userfiles/file/zalavuxapotefis.pdfIn PDF document text
- http://bavlas.lt/ckfinder/userfiles/files/29948485234.pdfIn PDF document text
- http://psn-monolit.ru/img_file/files/definirupawakil.pdfIn PDF document text
- http://dogomanhnghia.com/uploads/files/90491541269.pdfIn PDF document text
- http://turbotechnik24.de/userfiles/file/26495441061.pdfIn PDF document text
- http://abwrichmond.com/uploads/files/94070938488.pdfIn PDF document text
- https://cortopolis.ar/userfiles/file/56214380821.pdfIn PDF document text
- https://pt2-turbo-j3t.com/contents/files/vizasununuzuxoludesan.pdfIn PDF document text
- http://2sisaccount.com/userfiles/files/13384197793.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/09bvdga8annd64uaep6c1sdakb/32259778842.pdfIn PDF document text
- http://www.salac.cz/ckfinder/userfiles/files/denerewirefewugu.pdfIn PDF document text
- http://gewald.ru/content/Files/sewesevofibipunovit.pdfIn PDF document text
- https://fleuriste79.fr/ckfinder/userfiles/files/safeboku.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/161464c24604ac---10007565402.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/48851951644.pdfIn PDF document text
- http://bitree.net/ckfinder/userfiles/files/82768511719.pdfIn PDF document text
- http://fulepmark.hu/nyebu/fulepmark/userfiles/file/21897792662.pdfIn PDF document text
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/45424269241.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/6bbeb03cbb8a50b74a44baea5d8bff06/30643922520.pdfIn PDF document text
- http://www.sushmitamukherjee.com/fckimages/file/zajuvuxigog.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_off0000e88a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE88A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001009c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1009C | 17620 bytes |
SHA-256: 99b55b6dc0633fd3707bf6cd011ac68e55e6f1635e085c943910afea9495851f |
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font_02_sfnt_off00012eb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EB2 | 10968 bytes |
SHA-256: b1ac880f8d24816f31ed85ae52a554c2e8286ddf452187eb880be009a27133ad |
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