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 point to disposable hosting and are structured as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing or a trojan. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are designed to distribute further payloads or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/3dc4a4645f0ccab79d021bd7771cb00a/81542830148.pdf
- http://adveotec.com/img/file/safoxomutox.pdf
- http://veraschwemmle.de/fckdata/file/kodojufunuke.pdf
- http://tantex.org/tantex/tantexuserfiles/file/tizojivokopuf.pdf
- https://agencement-menuiserie-var.fr/stockages/files/43689830850.pdf
- http://xn--vb0b83rba554gca.kr/page_data/file/20210903090826.pdf
- https://www.truck-transport.com/ckfinder/userfiles/files/malivalunuwogizaruji.pdf
- http://artdental.hu/editor_up/40415387569.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/oal0o7fjcdud8ul9jh77rlvvg4/14199872169.pdf
- https://camphacement.vn/upload/files/24638034756.pdf
- http://nagakuratrading.com/js/upload/files/gozavug.pdf
- http://kamnitikamini.si/upload/files/vatuzepevatetatowulofigu.pdf
- http://neoneophytou.com/ckfinder/userfiles/files/76499813987.pdf
- https://esz.jp/img/editor/files/fanaf.pdf
- http://spbmedax.ru/sites/default/files/uploads/47757780288.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec24b0eee2---sovujekerutuvafusate.pdf
- https://rh-h1tapi-turbo.com/contents/files/vugajok.pdf
- https://tivirtual.com/userfiles/file/wifilidijataxowasibuwemuz.pdf
- http://immobilier-valence-agen.com/userfiles/file/96839915060.pdf
- http://elosc.com/upFile/file///ITX202109140326244727.pdf
- http://baigeleather.com/userfiles/file/27733051755.pdf
- http://uran-berlin.com/userfiles/file/14544331569.pdf
- http://porpora.group/imagenes/imagenes_contenidos///mupagole.pdf
- https://ms02bet.net/contents/files/57945867998.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=the+snow+queen+2012+full+movie+english
- 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_off0000eadf.binc51cc029b899260ee1d2230524918e09240b2c970c11d7c21d369c4d12590a4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEADF | 17928 bytes |
font_01_sfnt_off0001195f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1195F | 16792 bytes |
font_02_sfnt_off00013176.bin892eabbb5d99998f8668e4020b3cdfe6131d56f14d8dbf5b50c7a3c86a2573fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13176 | 10956 bytes |
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