MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV and an ML classifier as malicious. Static analysis revealed it functions as a link farm, with many embedded URLs pointing to compromised WordPress upload directories. These links likely lead to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613865b11b30c---28040671296.pdf In PDF document text
- http://eperon-kochersberg.com/img_db/16340126715.pdfIn PDF document text
- http://kroonzuivel.nl/ckfinder/userfiles/files/72731134587.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/24013648796.pdfIn PDF document text
- https://zagi.hr/files/29250012207.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a11471cfbd---14804714838.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/8801705364.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/97650421771.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161369cb5865db---kasukewukewuzejivog.pdfIn PDF document text
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/21733533575.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/15860332472.pdfIn PDF document text
- http://masterkontroll.hu/ckfinder/userfiles/files/rivajinekowogotixo.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/kazisafezusufibigoxo.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/fimufejogiwapalujukemagow.pdfIn PDF document text
- http://www.lalorraineperdue.com/documents/56246251563.pdfIn PDF document text
- http://4bx.pl/public/file/peralivozigizinenagigawi.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/13747794043.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/87997344023.pdfIn PDF document text
- http://studiolorenzino.eu/userfiles/files/luvomer.pdfIn PDF document text
- http://fli.edu.mn/ckfinder/userfiles/files/1823625934.pdfIn PDF document text
- http://luatsugiadinhviet.com/upload/ck/files/96469723387.pdfIn PDF document text
- http://octapus.vn/images/uploads/files/jinonob.pdfIn PDF document text
- http://qdxqw.com/uploadfile/file/85974080889.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/jojazivapogi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=class+4+preposition+worksheetPDF 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_off0000d4ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ecc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC4 | 10636 bytes |
SHA-256: 1610807df73d72c87ae73ad819104dbc6ac3d2a6f4150738bc175822c6efcdd7 |
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font_02_sfnt_off00010520.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10520 | 17472 bytes |
SHA-256: 0480a0758324f6e9aeebef8def7aa7d93d38851932cda3b9c2a91236eb69faf1 |
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