MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs hosted on potentially compromised or disposable domains. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics suggests an attempt to leverage SEO or compromised sites for distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution campaign.
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://ebbers-schilderwerken.nl/uploads/files/94146407495.pdf In PDF document text
- http://naturalwonders.com/uploads/files/lonubewowunul.pdfIn PDF document text
- http://doggystylzgrooming.com/admin/photos/file/59989496411.pdfIn PDF document text
- http://bibliotekaszamocin.pl/img/upload/files/zereziganerasawekigav.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/dc2dc2acf7a0592f1f56b082224f20f0/41801055280.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c660aa8b7f---32702483708.pdfIn PDF document text
- http://exosushi.com/uploads/files/31373603164.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16130a591ae065---kedumuji.pdfIn PDF document text
- http://seychelles-resort.com/images/blog/file/gofeseferazas.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130dafdace8f---luzarajebulisulimejema.pdfIn PDF document text
- https://perfecthospital.org/FCKeditor/file/97570671638.pdfIn PDF document text
- http://casaatlantida.com/userfiles/file///2035874771.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161459e8c1fdf8---nuzupimatomijodopanunes.pdfIn PDF document text
- http://mega-stainlesssteel.com/uploads/image/files/19225277294.pdfIn PDF document text
- http://www.facyt.com.ar/ckfinder/userfiles/files/janelojabiseletexejajewe.pdfIn PDF document text
- https://bk.knu.ac.kr/ckfinder/userfiles/files/fezokefumititadotev.pdfIn PDF document text
- http://world-spa-resorts.com/dok/43256536456.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614464f6c6c81---vezerusizesorutisof.pdfIn PDF document text
- http://thaimassagemodel.com/ckfinder/userfiles/files/16813941550.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614553be6bd17---xaxesitik.pdfIn PDF document text
- http://soundspace.eu/Upload/file/wevag.pdfIn PDF document text
- http://syarmarka.ru/userfiles/files/49372545508.pdfIn PDF document text
- http://deleeuwputten.nl/site/data/ws/files/59643994296.pdfIn PDF document text
- https://maturana.cl/upload/file/588170501.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=jedi+academy+touch+apkPDF 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_off0000e073.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE073 | 10660 bytes |
SHA-256: c715a6acb3581b236aa3dca0d77b9f9a3e0d0ea30c534849fa9b4aed966b40dd |
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font_01_sfnt_off0000f8f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8F4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11106 | 18456 bytes |
SHA-256: e6351e2c1379e169a322c3c5a30c63f35684447bcf00cbec0ce9e8763e48fc23 |
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