MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to compromised CMS uploads and disposable hosting, indicating a phishing or redirection attempt. ClamAV detection and ML classification strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://grupophi.es/uploads/files/2501109964.pdf
- http://thietbikhachsanvinhhung1.com/upload/files/xoxejura.pdf
- http://www.alborada.es/ckfinder/userfiles/files/rukipusiro.pdf
- http://hyundai-baoloc.com/luutru/files/taxubogipiwubirudira.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e596a70b3---85374104531.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/f8b40f618f48afd34b98650041be1509/disotatukapok.pdf
- https://sbmhavacilik.com/userfiles/file/87904605111.pdf
- https://toolsatool.com/userfiles/files/tabepefufude.pdf
- http://topnotchimports.com/ckfinder/userfiles/files/55552406952.pdf
- http://jezirka-biobazeny.cz/UserFiles/File/69577331554.pdf
- http://kythuatviet.vn/uploads/userfiles/file/laferafokig.pdf
- http://madmojo.com/fckupload/file/wewoxunuduviwot.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/a6qb3lhl4k1808m9l9magnuh43/ziwitukifowebunuwele.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/4503e8c380bfab56dd0ff99adaca79ae/15252101573.pdf
- http://contextuae.com/resimler/files/kusesefi.pdf
- https://il-gusto.com/images/file/439042503.pdf
- https://toocapen.com/files/81169693870.pdf
- http://drentmedischadvies.nl/uploads/files/79877218541.pdf
- https://www.southdownscellars.co.uk/ckfinder/userfiles/files/takozuxowurosekefix.pdf
- https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/lapotawukedawejakumalo.pdf
- http://tokyoto.pl/UserFiles/file/25373539805.pdf
- https://autonoleggioassereto.com/file/borej.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130ce7530966---53939660027.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=online+games+for+android+without+download
- 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_off0000f8c1.bin23acb4b40c2328d49137548c45e9d2416ba1b7abc000c7bcd95bfa1a576228ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C1 | 11012 bytes |
font_01_sfnt_off0001120a.binf1885ffd22f8ac9d9eb37221c951269f7e6066cdf9f3d3b18f332361a02f085e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1120A | 18096 bytes |
font_02_sfnt_off000140f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140F3 | 16792 bytes |
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