MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The numerous external URLs, many hosted on compromised or disposable domains, suggest a link farm designed to redirect users to malicious or phishing content. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://huntic.ru/uplcv?utm_term=pdf+to+vce+online
- https://topinsolventa.ro/userfiles/file/dulalapiz.pdf
- https://whitesal.com/data/images/file/8176_20210920083244.pdf
- http://shinhwajudan.com/userData/board/file/75918271587.pdf
- http://pincesorvarshop.hu/editor_up/vitidijemite.pdf
- http://uforoi.com/app/webroot/uploads/files/22924357105.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/1d813iqvubdp2p4gcdde1k4vc1/64614596978.pdf
- http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/82975626636.pdf
- http://24cvety.ru/upload/files/90731224495.pdf
- http://all-vehicle.net/js/upload/files/surapozotatini.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/e6c6632bbc76d3f94560d32a88c842b2/wovavaloz.pdf
- https://shturnev.com/files/foFKED/file/60943815870.pdf
- http://xinyuemu.net/assets/202109/files/20210920032322145964.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1a85cb199---48489708736.pdf
- http://gartenstadt-apotheke.com/userfiles/file/levojugonipunodumidalev.pdf
- http://tid.vn/upload/files/numeniwirugolanot.pdf
- http://dichvugiayphep.net/hinhanh_fckeditor/file/zutojemusitipimiwelawutis.pdf
- http://freetds.net/userfiles/file/60174092699.pdf
- https://denimder.org/resimler/files/78427142378.pdf
- http://romovi.net/sgi_userfiles/userfiles/files/tasomixipigojorowozekuwa.pdf
- http://lysfyyy.com/upload/files/xosojukajapubibaj.pdf
- http://quocteanviet.com/img-chamthi/files/39500125211.pdf
- http://nebovsem.ru/app/webroot/files/files/66266268602.pdf
- http://lindendirect.com/ckfinder/userfiles/files/pejazojowikam.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/a0569c1d1a63b03fab2cb86c6757a041/bazilek.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_off0000d594.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD594 | 16792 bytes |
font_01_sfnt_off0000edab.bin24a744b049499c5f2b1fe543ea00cf9a09eebab2f8d062d3467d45599ac4c526 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDAB | 10104 bytes |
font_02_sfnt_off0001044a.bin72baa84d033095cdbee2c43deed3e3e85ed2e8ca4b486730d434e32a5f70fd65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1044A | 17616 bytes |
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