MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. The embedded JavaScript stream, while not directly analyzed for specific actions, contributes to the overall malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9866
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/ac529007b8b23f8547905fa0cd913cb1/wagus.pdf
- https://ebooksweb.net/files/file/68568649143.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610d58cbd5e08---45390228926.pdf
- http://pozitron-s.ru/userfiles/file/66456696560.pdf
- https://gberwanda.com/gbe/useruploads/blogs/files/rowakizumumivefifadudesis.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/lepj13qk9pjamimgibituqa7hv/55924712645.pdf
- https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/maxuxeva.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160a090b646b27---vubufotatipad.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609e1468f02f2---79453251517.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84bb459f05---bubirenitikovofuxexibile.pdf
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/16080dffd1d0f7---vusajidotuvelisi.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/bf11662278653e89fc912a5c029fad82/55403380232.pdf
- http://metaglas.kr/userData/board/file/wejiw.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160942710df6d6---kovof.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f092ead93---dibogozugorule.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/d0f5e01cd707c9078b8a0f9129d30677/61427917838.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160cb56de8c426---25119721274.pdf
- http://first-group.kr/ckupload/files/16079179358.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/7he6c0natpg6d0fc647vqihajj/59544116024.pdf
- http://vtvxm.vn/userfiles/file/50025831947.pdf
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/b9dac1140c0cc64216120af43315a825/sudene.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/d2emo2nvg0i95hcrsjqqmfhis8/jivixesafojumodegoj.pdf
- http://www.allatpatikapecs.hu/images/file/fowapunasimex.pdf
- https://zohopin.com/calisma2/files/uploads/95528534318.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/56eaf4e45a496d1a3bb1db57d4e71199/xowizasovamedewefalupusem.pdf
- http://detikakdeti.ru/img/file/39080400574.pdf
- https://aawyx.com/sites/default/imageuser/file/ximamupu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=solar+shield+clip+on+sunglasses+size+chart
- 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_off0000f967.bin46ad9c7e97f1a1302df5204dbff0bd81a62bedd273cdab2a04ff71b2ec6bc3ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF967 | 11028 bytes |
font_01_sfnt_off000112c1.bin785a342732c69bcaf41107e381229e1ff7c0438638d137d618108be2734d514b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112C1 | 17476 bytes |
font_02_sfnt_off00014044.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14044 | 16792 bytes |
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