MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload directories, suggesting it's part of a link farm designed to redirect users to malicious sites. The document body, though heavily truncated and obfuscated, appears to be a lure, possibly related to educational material, to entice users to click on these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16099835e343f9---pukitusutizimewanu.pdf In PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abf42059b60---40441567863.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160752b4480e1f---77455012179.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d907b6f49c---9924821832.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160826f21862b2---32190116116.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d1f1c8a5886---feboga.pdfIn PDF document text
- https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/dbe226258f01d9632a3dfdb9f466df11/61947678165.pdfIn PDF document text
- https://kund-in.com/userfiles/file/fabiselunaregafulunadav.pdfIn PDF document text
- http://feriaalainversa.com/uploaded/files/darububovuvukasuwow.pdfIn PDF document text
- http://emirates-offshore.com/uploads/image/file/66065032202.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfe18b3b73---26156618407.pdfIn PDF document text
- http://mwflower.com/upimagesfile/%5C/69661493782.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=way+to+success+9th+english+guide+pdfPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010403.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10403 | 5592 bytes |
SHA-256: 32df14569588a9cb32f322f2fd6922f09b6fbb946fbe358887c66498bcb63119 |
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font_01_sfnt_off0001171a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171A | 7328 bytes |
SHA-256: 0d02d0468c226b0e0416d409501efb8e8305b41639314c5a19d7b238911eb658 |
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font_02_sfnt_off00012be0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BE0 | 11320 bytes |
SHA-256: deb90e343b0cf9169aa7f6e15acd62cf21dcd4be027e774215d2c2c4f1c79739 |
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