MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a tactic to obscure the true destination of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://queure.ru/uplcv?utm_term=fire+sprinkler+inspection+checklist+pdf
- http://nhadatv.com/webroot/img/files/85538032918.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/f3c543d53a9fc0c46e9b27c83cde249c/jonititesafatixuja.pdf
- http://rockpapersun.com/upload_mce_image/file/xediwazux.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/l1vps8klmhrfnjl73nbq783oa5/41999040350.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e294aaf6d---jebijalimaxawug.pdf
- https://ludifrance.fr/userfiles/file/putepi.pdf
- http://agriturismofattorialucciano.com/ckfinder/userfiles/files/20837984268.pdf
- https://eravukappalpalli.com/userfiles/file/pulinuro.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/3eklngfg333u58pidpr2nelsb5/woforakapaminenoxefubad.pdf
- https://www.qualityitalia.it/ckfinder/userfiles/files/27387268504.pdf
- http://zhouzhuank.com/v15/Upload/file/20216251719531011.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/45600335e1d19c666781a1b1ef97809e/pewekarefojiluf.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805bbb3298d---fizeloludifuzagemuna.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16104760d12575---rafapekivolifufadoxa.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/31fue70llcbntr85n7ha8pedjp/87442626567.pdf
- https://pmcp-avac.com/files/upload-ckfinder/files/1310651288.pdf
- http://chapelguild.com/images/usr/64406430357.pdf
- http://autoservizimensi.it/images/fck/file/49806357850.pdf
- http://mega-gold.com/userfiles/files/93845582771.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/32f57c19040071b3da175b6b50c108e6/92102713616.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8dae536a48---3811311832.pdf
- http://edgewood1962.com/clients/2/2b/2b25cacec04995aba37d275b9c35b4d1/File/36248800513.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1610c50f6522a0---gazalonu.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_off0000eeb1.bind054a830e8851c9b257a8e4eda4ae3064a2b15387fd53712ae7bf51debd5b35d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB1 | 17152 bytes |
font_01_sfnt_off00011b7d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B7D | 16792 bytes |
font_02_sfnt_off00013394.bin1c4f506a62348d046bb72fabebae0f7489ab0e074129b3a64d5e4fd72d72f470 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13394 | 10624 bytes |
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