MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains a link farm pointing to multiple PDF files hosted on compromised WordPress sites, suggesting a phishing or content distribution scheme. While no scripts were extracted, the presence of numerous external links and the detection signature indicate a malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/ia3ra2pqk330fvk6g8v7pc3ae9/25174415828.pdf In PDF document text
- https://leavingcare3plus.ch/userfiles/files/gutimanavukijigi.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/hmdtni6bo77a5labhussmscj80/dukeb.pdfIn PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5663d3d90---rovaj.pdfIn PDF document text
- https://mimpisiluman.com/contents//files/kerufijimazawomob.pdfIn PDF document text
- http://ruoumoc.com/upload/files/movubes.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/75482513468.pdfIn PDF document text
- https://memoservicesrl.it/file/24841863888.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/22203819b790ea557666fbed2fb201f8/38045249748.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944f6b5ce9a---pokadopifexeveworab.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083d21001d84---xatikusosa.pdfIn PDF document text
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/b5hsdllrucbksj564loamcevc2/41322111399.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1609b12d96eee8---ladovikipasidinugapi.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/1df187708b3b45d647787a0e90232385/89895583210.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/57084279320.pdfIn PDF document text
- https://mmszke.hu/files/file/surumuwedowepuv.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=largest+grocery+store+in+the+worldPDF 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_off0000f382.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF382 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010b99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B99 | 10808 bytes |
SHA-256: 569d7f2030bf7ae1bfaa982d05beab5c1fc4b1e0d002d40dcbe8afe7d2e54d6b |
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font_02_sfnt_off00012447.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12447 | 16632 bytes |
SHA-256: c955703d7bf04b4b057d7eaa46b1e620a1ed3cf905b3d5a64b30cd2293ce1194 |
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