MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains, likely to distribute further malicious content or phish users. The presence of PDF-specific heuristics related to link farms and compromised CMS uploads reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d96a953855---68526899399.pdf In PDF document text
- http://tks-forever.com/upload/2021/09/02/file/kosopikonixana.pdfIn PDF document text
- http://pm-ural.com/uploads/files/zejap.pdfIn PDF document text
- https://etevent.itweald.com/uploads/files/613d1216e5085.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137f1c8afbfc---mezatabopebap.pdfIn PDF document text
- http://pcserviszlin.cz/ckfinder/userfiles/files/93664526890.pdfIn PDF document text
- http://nrgmedia.hu/files/file/89039809370.pdfIn PDF document text
- https://crcnueva.naturasoftware.com/uploads/images/files/pujafijajajedujasurorub.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/9609927885.pdfIn PDF document text
- http://ageddfjtj.pretty-match.com/upload/files/fidomelixifubu.pdfIn PDF document text
- http://goksirlambinowice.pl/img/upload/files/futoredimolofutejubiv.pdfIn PDF document text
- https://bccphil.paramedix.biz/uploadfiles/file/sufedivuzu.pdfIn PDF document text
- https://www.zolmedis.lt/ckfinder/userfiles/files/23018998587.pdfIn PDF document text
- https://fabriziochessa.it/userfiles/file/50318429806.pdfIn PDF document text
- http://xn--h1agcmh.com/ckfinder/userfiles/files/64611558962.pdfIn PDF document text
- http://vecsecity.info/editor_up/rafovenunebasefojejavoxa.pdfIn PDF document text
- http://dsfly.com/uploads/files/45464383863.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/kokinox.pdfIn PDF document text
- https://fzclicks.com/demo/files/editor/file/jorexonopuxobusalejujanu.pdfIn PDF document text
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/96070977997.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/vn62l80f8isc90893koemdg9b0/5584873805.pdfIn PDF document text
- http://salamatekhanevadeh.ir/ckeditor/files/files/94274704976.pdfIn PDF document text
- http://koppeika.ru/userfiles/file/60420112470.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=android+job+openingsPDF 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_off0000b920.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB920 | 16216 bytes |
SHA-256: f4dea4be3167172046205b133c430831f65e039a036bcf938271d1462698d1c8 |
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font_01_sfnt_off0000e27d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE27D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fa94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA94 | 10512 bytes |
SHA-256: d26e46900d0ce9e38259cc1cd42969db9c1377aff0d2d4bebf11deaed98581ba |
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