MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that function as a link farm, directing users to external sites. Several heuristics indicate these links are hosted on compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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=country+gospel+songs+by+alan+jackson
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b14b28a2ea---siwopusiburoxupepusanew.pdf
- http://imi.vc/upload/files/jadirawudan.pdf
- http://miskolciharsona.hu/pictures/file/30809933944.pdf
- https://hojoairport.com/images/file/84735687958.pdf
- http://www.yemany.com/yemfiles/files/26312054045.pdf
- http://montgomery71.com/clients/34132/File/80881339332.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/5bkp4d7jbs2kfjq3scbnlk68rv/17835384354.pdf
- http://winso.tw/userfiles/file/namofifebufototefo.pdf
- http://1careglobal.com/upload/files/52575174998.pdf
- http://tvoirostov.ru/ckfinder/userfiles/files/27396850549.pdf
- http://analogsys.com/uploaded/file/201936036161093fcd09c72.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1608098e13d2dd---vuxiveluvotiberekumix.pdf
- http://ebsenglish.net/_UploadFile/Images/file/76198609453.pdf
- http://intergeored.com/upload/File/nenejemerefesulejejugewod.pdf
- http://elvirajogsi.hu/ckfinder/userfiles/files/56924967807.pdf
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/vopvgi2ua55lpndtvlgfl6esno/dexalubazuzomu.pdf
- https://fetogram.ir/images/upload/files/tedamuj.pdf
- http://sweetbasketsbyjackie.com/clients/864293/File/xupejiro.pdf
- http://detaycopymatbaa.com/userfiles/file/pegesajumulizime.pdf
- http://www.gabrielamaciel.net/images/content/file/xapumerabur.pdf
- http://nemdanangpho.com/uploads/2021-05-28/images/files/gokefig.pdf
- http://kalmi.ru/upfiles/files/komaxitixip.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090fba7a9a77---tovibonen.pdf
- http://augustaelectricalwork.com/editorData/file/denedok.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_off0000d38f.bined52c7f1b1cae125fdd9effdb82b5cce44820381073416efe5fdd62b692da4d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD38F | 11064 bytes |
font_01_sfnt_off0000ed62.bindda28561d03d6e4366f94bf0bc482ead2ad87e45cf58b4293b9cdeb657b185ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED62 | 18056 bytes |
font_02_sfnt_off00011bf8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BF8 | 16792 bytes |
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