MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and link farm behavior are consistent with phishing or malware distribution lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b115ac800b---muwivi.pdf
- http://topas.lt/userfiles/file/wifokusejozugoz.pdf
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/22795437749.pdf
- http://stonepigments.com/userfiles/file/30574008200.pdf
- http://gameometria.com/assets/ckfinder/core/connector/php/uploads/files/94707790957.pdf
- http://zezoalza.com/ckupload/files/89491080836.pdf
- http://www.mostenpo.jp/userfiles/files/larobagesedez.pdf
- http://lynhuagiasi.com/Images_upload/files/21509208364.pdf
- http://apex-architect.ru/images/file/gozageke.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413be2a0280---wegoxux.pdf
- https://tahitotfaluovodak.hu/ckfinder/userfiles/files/36623714943.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613141d4eec8a---xemorim.pdf
- https://www.khaosanpools.org/ckfinder/userfiles/files/37048019942.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/667emagi75lotrbpt1u7c2v401/xusezuwaruzoze.pdf
- http://p-jtech.com/userData/board/file/95732626744.pdf
- http://totoquynhhuong.com/upload/files/8312346288.pdf
- http://rwdwebwebdesign.com/img-aim/files/21872069274.pdf
- https://granitnet.hu/editor_up/kixoxelavos.pdf
- http://hzosm.com/images/upload/File/68817203949.pdf
- http://tiendanatacion.com/noticias/files/nikufixulufusorasi.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/695ee2d200bd563f6505be3ddf2ce114/pexunoledu.pdf
- https://detectagsafety.com/ckfinder/userfiles/files/15537631257.pdf
- https://dewalt-naradi.cz/media/upload/editor/file/duredaxoxena.pdf
- https://theatresaucinema.fr/uploads/file/sojegemura.pdf
- http://jnejendomsdrift.dk/userfiles/file/96407367017.pdf
- http://fc-junajted.com/upload/datoteke/jabomo.pdf
- https://siam-royal-view.ru/data/files/takaw.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+use+vlc+to+convert+mp4+to+mp3
- 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_off0000e19f.bin28ad242ef7c25e49450bd940134b988f9ddd134b33ddaeecf00d9fbebfafa144 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE19F | 17740 bytes |
font_01_sfnt_off00010fe9.bin380ae16fb52ae6127df30c2c5d8591f0342b3fcffd0629ea31d28f09a42e9a56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE9 | 10776 bytes |
font_02_sfnt_off000128dc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128DC | 16792 bytes |
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