MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a large number of embedded URLs, many of which point to compromised WordPress sites and disposable hosting domains, indicating a link farm designed to distribute malicious content or phish users. The presence of these links and the overall structure strongly suggest a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c44fb3ea6b8---70850334452.pdf In PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/28cb5ce7a59e246548328628d2e4bc17/79318115790.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/xaralizuworofewemo.pdfIn PDF document text
- https://dineflon.com//files/61467405253.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/31394378247.pdfIn PDF document text
- https://podimercrm.com/img/files/99044958854.pdfIn PDF document text
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/jjbb5a93ph727bt7ba9nueso4q/vuwiworoxumesuwozozojarum.pdfIn PDF document text
- http://womenscouncildallasarboretum.org/clients/85748/File/90288775044.pdfIn PDF document text
- https://topjobsnepal.com/ckfinder/userfiles/files/4301946004.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbb15000d0---gisufewebow.pdfIn PDF document text
- https://biorenta.lt/ckfinder/userfiles/files/44251360847.pdfIn PDF document text
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/b90fef8d4065fb9b42c5f9fc470c53a5/20990314179.pdfIn PDF document text
- http://111-orte.de/testarea/cwsCMSlight/media/files/vubidiraso.pdfIn PDF document text
- http://hrt-foto.hu/_user/file/vefulofuwudukozuxurene.pdfIn PDF document text
- http://china-hold.com/UploadFile/file/20210805135715151.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608a6ebf8eb6e---berapigiwor.pdfIn PDF document text
- http://iglozawiercie.pl/zdjecia/file/48200855330.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/83649418100.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160998f4e9d0fd---72855719835.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/687840bcab0f8c365e6dc549474c0cf0/49005230610.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb84d742e3---nagiwevi.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4314fbdaa5---23725984273.pdfIn PDF document text
- http://szpk.hu/_user/file/38957061456.pdfIn PDF document text
- https://c-effeimmobiliare.it/file/jujivo.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/e019c26a7270b9b289ce4bfb3ec239d5/5166093929.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=silberman+ortopedia+y+traumatologia+pdf+gratisPDF 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_off0000eb33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB33 | 18804 bytes |
SHA-256: 899cf31e8d0c591873877bc05012ff6a9da7d6644a49c0079eb22e5a58262d45 |
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font_01_sfnt_off00011ad4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AD4 | 11272 bytes |
SHA-256: c415bc21cb4bb0a7511caf9bfb09f0d05c010ffd411f3188785fa52a0974af2f |
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font_02_sfnt_off000134d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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