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 part of a link farm hosted on disposable or compromised domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://irlanc.ru/uplcv?utm_term=grand+gangster+apk
- http://kenhuffbuilders.com/userfiles/file/73877000520.pdf
- https://skinrepublic.vn/webroot/img/files/pufilusifawotuvamisi.pdf
- https://daaeportrett.no/upload/file/nawedobaxemupifebo.pdf
- http://gachmenminhchien.com/media/ftp/file/98644119940.pdf
- https://braus.uz/images/shared/file/kajufokuginarajif.pdf
- http://thekitchendesignstudio.org/uploads/files/8828712193.pdf
- http://pataibicaj.hu/userfiles/file/xijajamuligatexapebusofa.pdf
- https://easypayindia.in/userfiles/file/67633005246.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/70ba859fa0c7861caa1616ddffe599c8/lajaze.pdf
- http://angel-conference.org/upload_fck/file/2021-9-19/20210919055918907185.pdf
- https://markapin.com/calisma2/files/uploads/68497810977.pdf
- http://cayxaotamphan.net/userfiles/image/file/budojiwabebesejufalugi.pdf
- https://curtain.jinware.com/upload/files/pomisizope.pdf
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4cd8cc9f2---70216189609.pdf
- http://techbico.vn/uploads/image/files/sijulolotubelof.pdf
- http://paintmaster.hu/js/ckfinder/userfiles/files/dowolunigukopodozetivamem.pdf
- https://istanbularicilikfestivali.com/upload/ckfinder/files/58215836299.pdf
- http://johnmarzillier.com/ckfinder/userfiles/files/karafin.pdf
- http://xsjsbzrw.com/uploads/files/mibigezoxobodat.pdf
- http://hasadtemizlik.com/upload/file/jogumo.pdf
- https://villanakarin.com/userfiles/files/76527858464.pdf
- https://avigailpekelman.com/sites/default/files/file/83035076444.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400825aa198---sinitebokikewi.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/061ba32c0c38a7bd6b3cbd06241ac0a5/tapowonofaraga.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_off0000d5cd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5CD | 16792 bytes |
font_01_sfnt_off0000eddf.bin1eb6e063be2ed420e7d8e5d6f0a99cfa4db0643421c45d63f4f591b7d239f80f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDDF | 17152 bytes |
font_02_sfnt_off00011a36.binee770781b10e8e9f8cd5617e65a11a4af3501ca1280a4e5fde7019d93ce49b34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A36 | 10440 bytes |
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