MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing or trojan variant. It contains a link farm pointing to numerous compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab164c0268---balabub.pdf
- https://najlepsze-w-polsce.pl/uploads/2492415656.pdf
- http://argol-editions.fr/userfiles/file/tazogit.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/4caf3b18214c1b808bf835969762e3db/34757586616.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085236926109---garezafulox.pdf
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/f1b7f4f5e18db472100354ed81143e51/35943577213.pdf
- http://acpiindia.com/userfiles/file/24384393528.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d28ebdf2ae---21883587049.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/skh0cephf4492hkkf17a15opd5/kovoke.pdf
- https://dadrarad.ro/userfiles/file/2019975384.pdf
- https://rosenstein.lu/userfiles/files/96191824433.pdf
- https://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/a95eorsju3lnqpp8m9j5jrks4s/volumibopewotupenijijami.pdf
- https://ivanamihic.com//files/12952027292.pdf
- http://tpdw.pl/userfiles/file/xosufakowivetonu.pdf
- http://pnktools-th.org/ckfinder/userfiles/files/jezipufiz.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/rorekilewumepuribepefem.pdf
- http://sl-light.ru/design/img/upload/file/13396044627.pdf
- http://eurekaelearning.com/upload/news/file/lugibowalapodi.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/2maut41aqqeb6id5974tq5fca5/vawivasebiravodesatexepa.pdf
- http://abwplazaview.com/uploads/files/59570421829.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/e2dae12143f9a182d78b308aaf7b02d1/45061622022.pdf
- http://schokozentrale.de/idata/rokugazifofo.pdf
- http://chrisdepanneservices.fr/Sites/cds/files/pevasad.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=flowers+on+shoulder+girl+tattoo
- 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_off0000e426.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE426 | 16792 bytes |
font_01_sfnt_off0000fc3d.bin6859b0e96cb8d87861aa37a37c81f54b1fde2c2dcae7e66c09cce542e00a687e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC3D | 10688 bytes |
font_02_sfnt_off00011480.bin679b6dc6f000472a25e447d119ad90dd247f5cb5a2c6a99c7097ee41474bfdc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11480 | 15820 bytes |
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