MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which are compromised WordPress sites or use disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure designed to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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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://laborke.ru/uplcv?utm_term=download+free+stuff+for+android PDF link annotation
- https://xn--fct8ml6mwue.tw/uploads/files/rurulimakev.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd0bb53690---14039219908.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161424a82d6370---15369127664.pdfIn PDF document text
- http://sozopolihills.com/userfiles/file/desinomugufepitawux.pdfIn PDF document text
- http://elementsgogreen.com/userfiles/file/15820804959.pdfIn PDF document text
- http://cartopack.com/Images/file/98396942747.pdfIn PDF document text
- http://irinabailey.com/upload/files/pusofavanovadozil.pdfIn PDF document text
- https://winpoasia.com/ckfinder/userfiles/files/88180957598.pdfIn PDF document text
- http://csc0512.com/userfiles/file/20210911223653_73vylu.pdfIn PDF document text
- https://kochitaxirental.com/ckfinder/userfiles/files/pifetibumanumoxoje.pdfIn PDF document text
- http://ffarchitettura.it/userfiles/files/dugufiga.pdfIn PDF document text
- https://alnahamgroup.com/userfiles/file/sinibibimibigijelukevu.pdfIn PDF document text
- http://marklaliberte.com/fckupload/file/tiremazeje.pdfIn PDF document text
- http://casier-a-bouteilles.fr/file/32870918311.pdfIn PDF document text
- https://jooli.ru/ckfinder/userfiles/files/52205671500.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/a7ke0v9hjjvfnb69099m4786md/47827103437.pdfIn PDF document text
- http://tecksco.com/upload/files/fokifetupufexebutujim.pdfIn PDF document text
- https://daaeportrett.no/upload/file/xajisovuw.pdfIn PDF document text
- http://beming.com/ressource/site-image/files/3596697437.pdfIn PDF document text
- http://cl-metalparts.com/d/files/wowatuwezojudejixi.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16136c439d312d---xosev.pdfIn PDF document text
- https://delphin-bau.com/ckfinder/upload/files/tuwise.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/52936632898.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_off0000b241.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB241 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA53 | 14488 bytes |
SHA-256: 1572fc524f7271c534ad074313ecf66aa58557a9257fa1da82bac7ada8e68ec5 |
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font_02_sfnt_off0000ee23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE23 | 10536 bytes |
SHA-256: cff0c2ec6aa749e7c5d26bfc6d75124faf032da6918e1153d6fd32b25997869d |
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