MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. The document contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfa8341cdf---nurupibowo.pdf In PDF document text
- https://ajwatravel.com/wheelmarine/userfiles/file/5722734339.pdfIn PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/68180207091.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///202171204714220.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///36243080621.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0adrh8fbeokh7euibcj51rqfh2/nixejiki.pdfIn PDF document text
- https://dichvuketoanvn.org/uploads/files/wonufimibijajotukejezu.pdfIn PDF document text
- http://otoozevran.com/resimler/files/31229948618.pdfIn PDF document text
- http://riph.pl/userfiles/file/sufukorigomukinabusor.pdfIn PDF document text
- https://flardochform.se/userfiles/file/46795075075.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1da43e438---zesamemubuna.pdfIn PDF document text
- http://ticaproduce.com/ckfinder/userfiles/files/tesulazupumijupurijupiwi.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/12bve4k9rchbj4qt391m3grftq/13915868783.pdfIn PDF document text
- http://thetuckerfamilyreunion.com/clients/67950/File/11301371773.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e17a0e208---17877041526.pdfIn PDF document text
- http://britishcytology.org.uk/ckfinder/userfiles/files/88963423028.pdfIn PDF document text
- http://nextgt.eu/uploads/file/18687333851.pdfIn PDF document text
- https://heritran.vn/uploads/news_file/zadugavomaxozapewesaduna.pdfIn PDF document text
- http://worthingtonpark101.com/userimages/mupiwogowozat.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/jli00cqotljvu00fc7un5uf691/rurun.pdfIn PDF document text
- http://tradeweb.es/userfiles/file/14287686209.pdfIn PDF document text
- http://suacuacuonthanhhoa.com/upload/files/pojizulamubiloroxomofegok.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/033224abfa076820cb052207249cc7d9/30196620964.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=sales+and+marketing+consultantPDF link annotation
- 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_off0000d908.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD908 | 10980 bytes |
SHA-256: d38f122879dbe8d370f2cc0c5a160acf601527bd23be1098bee402e6db1d1123 |
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font_01_sfnt_off0000f24c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF24C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A5E | 17388 bytes |
SHA-256: 92739520f6fbc3c5ea2e7bb2ca97a3eb8eeeb77c4f8f85d93cf5c5b46d108dad |
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