MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and is identified as a link farm, likely designed to redirect users to compromised websites or phishing pages. The presence of multiple links hosted on compromised WordPress sites further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://nomylo.ru/uplcv?utm_term=atomic+number+atomic+mass+and+valency+of+all+elements
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6c985baf0---62787379083.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b33de8bfc66---lisovuxowusaveko.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/12d33958880b963e22ed1228a17d4b1f/1536324037.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084aa4c5c868---66970851397.pdf
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/2421c0526470c2f2362e6375f37cf9e8/25305455696.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/n54vi39bnr3f42lm9emkk7vfv3/88276497604.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a09a619ef16---2737781391.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16091f664cd941---37561455186.pdf
- http://simonhoirup.dk/userfiles/file/28977289450.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/87cc24effb748e6e81eb21175d42bbcc/karigilusamojulipo.pdf
- http://amctop.com/board_data/editor_img/file/202106221736.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/ckssuueqtn28st1muf0j0vmt4n/40289786120.pdf
- https://aquafilling.com/userfiles/file/61306767442.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bf3820e834a---napoxupeveseko.pdf
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/0e00ca4a04dcd87ba514818a77685abf/67265021254.pdf
- https://greenvalleykerala.com/ckfinder/userfiles/files/xunajapumutu.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9c5932f6c---pimixorinijivolobo.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b13549329ca---13773071134.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/0ngv6kttvql15lck369pfretrg/sedolijovubofenidiweruvol.pdf
- https://aitalk.vn/upload/files/54778457913.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/n77l0v4sj2t2p2med5mh0qalu3/lonalunupudeguzakazediv.pdf
- http://akicgiyim.com/userfiles/file/dovititivariwewazoluteb.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5237e63ee---29097830906.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d4cebcdde---56907602159.pdf
- http://mtlebanon62.com/clients/5/5e/5ee551a8be14a26d7d76bc5e90dd1372/File/7289034703.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001525b.bin28b9f48c6794efcde406b7ad66ee3bc1035543062441a3e120ab8cb3ca6c0fc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1525B | 17772 bytes |
font_01_sfnt_off00018149.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18149 | 16792 bytes |
font_02_sfnt_off00019960.binde5a1a1d14981e079bcd3a7ba5f421c67b2aa2f631ad67b89a3d2637048b1556 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19960 | 11040 bytes |
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