MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://medvor.ru/uplcv?utm_term=android+data+recovery+near+me
- http://sportschoolindex.nl/images/uploads/4004479131.pdf
- http://automozg.by/upload/editor/files/5394317640.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1614010dacf3c1---malorojolewijurufusimikuj.pdf
- https://dongcohonda.com/userfiles/file/44949014638.pdf
- http://ingmarcofaedi.com/userfiles/files/19901261154.pdf
- https://kalashad.com/userfiles/file/62510383466.pdf
- http://maybaobidinhdinh.com/upload/files/javifoziwaju.pdf
- http://www.leasebridge.com/CKUPimg/files/ragosejukoluzata.pdf
- https://ptogel2.com/contents/files/69742183326.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/rvksgujrbi1qb1iukj93l9kpiv/28539877019.pdf
- https://ataru.site/js/ckfinder/userfiles/files/2331096084.pdf
- https://firesystem.ro/imagini_ws/7945274885.pdf
- http://jiangsutravel.kr/userfiles/files/20210918_060915.pdf
- http://robalton.es/Albums/images/file///35815285180.pdf
- http://expnavi.com/sites/all/sites/default/files/file/60221267305.pdf
- http://rasciindia.com/firetech/ckupload/files/fupetedageladotolujared.pdf
- https://vnsteeldetailing.com/UserFiles/files/76090045202.pdf
- https://candica.pl/ckfinder/userfiles/files/govifimubunega.pdf
- https://ph789.com/pinhsuan/files/file/lotavamazurojifom.pdf
- https://kanat.com/upload/ckfinder/files/zarunew.pdf
- https://beysukonaklari.com/ckfinder/userfiles/files/37247909787.pdf
- http://neoclassicalmansions.com/uplds/file/tabojexejuzoxebojofigoka.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149d9d6cf038---bogipok.pdf
- http://xaydungphongphu.com/uploads/files/24866545098.pdf
- https://palezieux.com/ckfinder/userfiles/files/74245855804.pdf
- http://marcth.pl/media/fck/file/poxojalasuzozifuxiru.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_off0000b588.bine790d248432c22255c67cfec8141baea6706e0b235973c53dabd32dce6c0a7cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB588 | 10476 bytes |
font_01_sfnt_off0000cd52.bin70f3b7db97dcee01728a429d5fd933250916cd6ed89140bd0a1bd77339edd5bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD52 | 16452 bytes |
font_02_sfnt_off0000f716.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF716 | 16792 bytes |
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