MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple domains, including compromised WordPress uploads and disposable hosting, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://rfychina.com/upfiles/files/163194372899.pdf In PDF document text
- https://s-oil.hoakhanh.vn/uploads/image/files/40253494.pdfIn PDF document text
- http://inarchengineering.it/userfiles/files/40479394655.pdfIn PDF document text
- http://skidubravy.sk/spravca/ckfinder/userfiles/files/zewogimigefedex.pdfIn PDF document text
- http://xn--80affcyoc0ac1f6a.xn--p1ai/admin/modules/ckeditor/ckfinder/userfiles/files/xufijipudefokolebowuwu.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/lb4lh93g3jj43m8pas59uve366/96622024567.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16143e12f77047---7200201049.pdfIn PDF document text
- https://homestayhoian.vn/uploads/image/files/89305551710.pdfIn PDF document text
- http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/xokujomoja.pdfIn PDF document text
- http://ijdssymposium.eu/upload/31487947300.pdfIn PDF document text
- https://glozor.com/userfiles/file/zazibiz.pdfIn PDF document text
- https://ahirealty.in/admin/userfiles/files/71158521992.pdfIn PDF document text
- http://zekejozsef.eu/FCKfeltoltott/file/991885914.pdfIn PDF document text
- https://encoyun.com/calisma2/files/uploads/megedanibozifuv.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ce45jv6eded5s18mkhd35h5it4/xezerepimefudu.pdfIn PDF document text
- https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/42618871075.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/l2c9f7na30tgcqpn7tfbrnhd5u/67423739811.pdfIn PDF document text
- http://andreuma.madteam.net/ckfinder/userfiles/files/bivokak.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-4/20210904055721305619.pdfIn PDF document text
- http://snabsz.ru/ckfinder/userfiles/files/nudebowuletukizubevo.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613022d627f5b---75273777074.pdfIn PDF document text
- http://cl-metalparts.com/d/files/49442948225.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=best+offline+mobile+rpg+gamesPDF 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_off0000df84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF84 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f796.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF796 | 17828 bytes |
SHA-256: 81310713ac6ede5835164f48637e4207096f88a8ba22a87804fe06d45862fc28 |
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font_02_sfnt_off0001262f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1262F | 10892 bytes |
SHA-256: a725279e03d22c17abba04dd61b3d601050e56db606cb095c8a26f3b29ff04c2 |
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