MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites, likely for phishing or malware distribution. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports this, with many unknown URLs pointing to PDF files hosted on potentially malicious domains.
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://asea-admin.com/_userfiles/file/20210522135153.pdf In PDF document text
- https://munis-roquesalbes.cat/demo/vilalba/imatges/file/nenejowil.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/2590bc5ac84fd2a281bc6721a4fdf787/69145275721.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c88d60171---nibaxarexabavojiluxukit.pdfIn PDF document text
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/ir5c6u1vv47k8rea60sl2fq5vr/folugenefanupaxi.pdfIn PDF document text
- http://ehomerealestate.org/images/file/dilozalop.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/817f3939ac33d130eddba63acd35ae8b/17435820946.pdfIn PDF document text
- http://surtek.biz/image/files/20150123_072107.pdfIn PDF document text
- http://zerosquareonline.com/file/99798226420.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160eccd3e6c3e7---50073183384.pdfIn PDF document text
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/6d50c2d3f1d7d81ec0f59ead3ea2fae0/86748210341.pdfIn PDF document text
- https://healthmatters.me/userfiles/file/lalitaxew.pdfIn PDF document text
- https://invest.pl/userfiles/file/fufisumajepe.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607304352a53b---ragiduzawatoloxop.pdfIn PDF document text
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/d0ade058060af86c1e8cba603aab261f/78070328402.pdfIn PDF document text
- https://rowsontw.com/shopadmin/upload/files/7160635369.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/pigamedusodifonire.pdfIn PDF document text
- http://greer2001.com/clients/e/ea/ea56749d84c1a2d7db36d2c51c833a37/File/vifabajedu.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af670cc076---91350086711.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16090d38bac1ec---46143776425.pdfIn PDF document text
- http://boathousebrokerage.com/userfiles/file/dasamuwujetaxerezokixuwe.pdfIn PDF document text
- http://internet-trade.eu/UserFiles/file/7488962151.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/damato.pdfIn PDF document text
- http://domplus.su/userfiles/files/kujaxasujozotido.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/cc65c7f843c218b48d88e3d9d83ba965/92176238685.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=sesame+street+dictionary+pdfPDF 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_off0000d8f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8F2 | 17640 bytes |
SHA-256: b691289435a13ad8b8b875ebf3f2018786827e4ee6ab9b3b5381e8ce1098fd0e |
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font_01_sfnt_off00010712.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10712 | 10924 bytes |
SHA-256: b26126276cb511d4b48b312a86ac56c2ab314b9197054c8ac5e4f923d6048fb7 |
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font_02_sfnt_off00012063.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12063 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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