MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded URIs and a link farm pointing to various domains, some of which are hosted on compromised WordPress sites. The presence of embedded JavaScript and a high ML classifier score indicate malicious intent. The primary goal appears to be redirecting users through a series of links, likely to a phishing page or a malware download site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://aayams.com/userfiles/file/depabuvi.pdf In PDF document text
- http://stphilomenaonline.org/userfiles/file/pulolujisebuk.pdfIn PDF document text
- http://abwpetersburg.com/uploads/files/noluzatelagunajifo.pdfIn PDF document text
- http://kaies.cn/upfiles/file/xureluwug.pdfIn PDF document text
- http://brcassociati.com/userfiles/files/mosutovukorakolute.pdfIn PDF document text
- https://natanashoes.com/kingkong/userfiles/files/xewirademufanozivikuwepej.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/13887210587.pdfIn PDF document text
- http://erfaspot.com/resimler/files/posamesuji.pdfIn PDF document text
- http://fuyu.010bi.com/ckfinder/userfiles/files/duvoxefatadegesaromo.pdfIn PDF document text
- https://taipeitccia.org/CKEdit/upload/files/75198623338.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613bfc0ec5706---xemofezu.pdfIn PDF document text
- https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/71786063800.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/wivaruradomebaremida.pdfIn PDF document text
- http://auto-rad.pl/userfiles/file/51244920836.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0c4a5cc84---38819905066.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/fexivolejaxeve.pdfIn PDF document text
- http://suliaok.com/v15/Upload/file/2021928525301873.pdfIn PDF document text
- http://uptownchantilly.com/uploads/files/misudisikopo.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161328ffd11d12---lozulibe.pdfIn PDF document text
- https://i-chat.tw/js/ckfinder/userfiles/files/zapomulepev.pdfIn PDF document text
- http://vietkinggroup.com/uploads/userfiles/file/49935555999.pdfIn PDF document text
- http://commune-bourre.com/userfiles/file/binemed.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=racing+fever+android+1PDF 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_off0000ad33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD33 | 10500 bytes |
SHA-256: b39a02dd9c6744a476341bcb1d00ec7deba5d1cd550fde4c0ec8df2937b1c1dc |
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font_01_sfnt_off0000c515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC515 | 14708 bytes |
SHA-256: 18cea6f9cae52ed40b77bda4ae6899795b383c752b3273741790c5d4199a80f5 |
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font_02_sfnt_off0000e9fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9FA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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