MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload storage and disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the URLs as a link farm on potentially untrusted domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=salt+nayyirah+waheed+pdf PDF link annotation
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/ffe93bb266ba79338ab7f361b893f1c2/vavikip.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/850feb4b2337dba19272118fd498979f/marexupi.pdfIn PDF document text
- http://tksvolga.ru/userfiles/file/bofijesajarizikiverubi.pdfIn PDF document text
- http://thechitay.com/uploads/userfiles/file/44393659326.pdfIn PDF document text
- http://isvpro.com/custom/files/lepugitig.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/cbffd7e0f65fec597c4d1fbe8bef8680/botelo.pdfIn PDF document text
- https://tavio.ru/files/file/bugisabutuwidoxevetupalof.pdfIn PDF document text
- http://majedalkarkhi.com/pics/file/685551736.pdfIn PDF document text
- https://photojet.bg/userfiles/file/dotudukufizezupolejisotix.pdfIn PDF document text
- http://italianopizzeria-pg.com/uploads/files/nirujatagovufizobiwegor.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109042236016246.pdfIn PDF document text
- http://ikkosushi.com/uploads/files/26626275083.pdfIn PDF document text
- http://kpghomerepairs.com/uploads/image/files/xitusemubosidinazofez.pdfIn PDF document text
- http://btsoft.vn/uploads/files/17623570773.pdfIn PDF document text
- http://camelliafb.com/uploads/files/202109051521397800.pdfIn PDF document text
- https://pakistanchristiancongress.org/userfiles/file/dosavumok.pdfIn PDF document text
- https://kuepancong.com/contents/files/88942786574.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///96492194497.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139cd688c69a---47427223249.pdfIn PDF document text
- https://danfort.lv/userfiles/file/sukubosaziwedo.pdfIn PDF document text
- https://charterboatdeliverance.com/uploads/files/boxiwapudomuzibu.pdfIn PDF document text
- http://dieterheich.de/images/uploads/file/bomekefefumiwo.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/laforozetopetulipu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d872.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD872 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f084.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF084 | 18272 bytes |
SHA-256: 0bdf45e18a361b92bbbaeb389debf9229bb25dd135cf1cb3f9e47555d9efef56 |
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font_02_sfnt_off00011fed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FED | 10584 bytes |
SHA-256: fd0563cbf22ff2c7900b9fbf1fd423ad61dfb1a17c34b0207f78bc58c82b1a8a |
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