MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating an attempt to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://irlanc.ru/uplcv?utm_term=logo+maker+mod+apk+download PDF link annotation
- http://weingut-suppan.at/files/47756516705.pdfIn PDF document text
- http://p-energo.ru/content/file/kazametoxofepige.pdfIn PDF document text
- http://www.vishalsahni.com/public/ckfinder/userfiles/files/40775830753.pdfIn PDF document text
- http://dj-venci.com/uploads/pages/files/luzepijanukegevi.pdfIn PDF document text
- http://reversetheclocknow.com/ckfinder/userfiles/files/93349770300.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/4voqsgabl1vtmk6jbtaa5fta69/rejazufexetasifuj.pdfIn PDF document text
- https://reparationmobile.net/userfiles/file/dolapesipededoziwuxafurit.pdfIn PDF document text
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/41502748724.pdfIn PDF document text
- http://hueide.com/upload/files/36007602000.pdfIn PDF document text
- http://ekopaczka.pl/imgbrama/files/29596516240.pdfIn PDF document text
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/9f9f20a04883a681ab6f702368830439/11776835180.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/35769693863.pdfIn PDF document text
- http://hacsbathtarntaran.org/~/userfiles/file/62074841634.pdfIn PDF document text
- https://zenmobile.in/jaipriyart/uploads/files/nimaxuziba.pdfIn PDF document text
- http://28777886.com/Lpf/UPFILE/userfiles/files/penupuromof.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1f6f3d31a---10900111998.pdfIn PDF document text
- http://el-system.jp/uploads/2012/files/gibopomemitufonunen.pdfIn PDF document text
- http://yonezawanet.jp/units/24250/zcycom/files/dugodonuwidosulitovuw.pdfIn PDF document text
- https://scalping.ir/data/files/file/lofamawelunetefak.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/5594998283.pdfIn PDF document text
- http://findingthegrey.com/userfiles/file/17248874906.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613016d4d8138---fanoziwi.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_off0000dd15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD15 | 10512 bytes |
SHA-256: 1083dd84b134a63883b7f06cc754fc49d7381fc83434d7f7538453b7073bb9a0 |
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font_01_sfnt_off0000f4cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010cdd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDD | 17940 bytes |
SHA-256: 78621b3359e9d627f710e716869184620285da85035196206bdbe1a8b55b242c |
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