MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://aal.tw/uploads/htmlupload/files/53740704621.pdf In PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4f545d580---99585092486.pdfIn PDF document text
- http://industriefotografie.ch/userfiles/files/xevudejusujijaguf.pdfIn PDF document text
- https://telorgabus.com/contents/files/16396200442.pdfIn PDF document text
- http://avvocatoandreabruschi.it/userfiles/files/fugasiwonoxepimegu.pdfIn PDF document text
- http://cuoredicane.it/userfiles/files/55835644677.pdfIn PDF document text
- http://exosportsante.fr/ckfinder/userfiles/files/kawojudot.pdfIn PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/xutomud.pdfIn PDF document text
- https://qnzar.com/files/xovilu.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/31c218295343b5528fc756e30544ac41/putolowavezumozogu.pdfIn PDF document text
- https://pachetedeturism.ro/images/files/15826219711.pdfIn PDF document text
- http://aviatechinform.ru/sadm_files/faripegokidurijexubuwilu.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/11b3f3c23852a8112e4c3839d1343202/vaxatoranofe.pdfIn PDF document text
- http://platcometals.com/images/file/gobivo.pdfIn PDF document text
- http://coimbrasoftware.hu/images/uploads/files/bopesemefot.pdfIn PDF document text
- http://pusancard.com/userData/board/file/basisor.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/29ee0e3e9eb6119dddeda6ad228a69d4/44152377035.pdfIn PDF document text
- https://unitedfightalliance.com/ckfinder/userfiles/files/zexatimuvobudawibezum.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/24118469530.pdfIn PDF document text
- http://hulstcustoms.ru/uploads/files/bupeb.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=geeta+updesh+pdf+downloadPDF link annotation
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9d8494a4ec---56771547465.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_off0000d194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD194 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9AB | 10628 bytes |
SHA-256: 4599a950d04a32bbd0e74f2d97439d6095b490ff55bb5d07d035d34b604af16a |
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font_02_sfnt_off00010202.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10202 | 23544 bytes |
SHA-256: 5e119979b64ccde4489251d0d559e8792cae037ec2961907407b6dea892748ef |
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