MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The PDF structure and embedded URLs point towards an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://tzsunup.com/upload/wotilagatupupufexagamubo.pdf In PDF document text
- http://ylpcl.com/ckfinder/userfiles/files/tukiluxiz.pdfIn PDF document text
- http://yidaig.com/uploadfile/file/20210912185442.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb25ed3139---17804967057.pdfIn PDF document text
- http://epmachine.ru/d/files/16733043624.pdfIn PDF document text
- https://blsautomation.com/ckfinder/userfiles/files/kilodez.pdfIn PDF document text
- https://ceral.pl/ceral/pliki/file/fawopum.pdfIn PDF document text
- https://jeevadhara.org/work/london/userfiles/file/90974707329.pdfIn PDF document text
- http://meadescafe.com/userfiles/file/50578963654.pdfIn PDF document text
- http://lukasikgroup.pl/Image/files/wuzavalobatoxamifuwido.pdfIn PDF document text
- https://jecoexports.com/ckfinder/userfiles/files/ninefuxum.pdfIn PDF document text
- http://355353.ru/userfiles/file/53483910857.pdfIn PDF document text
- https://saksisan.com/upload/ckfinder/files/61780964056.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/28184485539.pdfIn PDF document text
- https://ost-fogging.com/upload/files/41919684541.pdfIn PDF document text
- https://arerp.kr/data/file///fakazerox.pdfIn PDF document text
- http://kyokushin96.ru/admin/ckfinder/userfiles/files/xewupagofuz.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f96459047a---31766971376.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161394b6486a3d---6646619555.pdfIn PDF document text
- https://slide-bearing.com/d/files/71698122773.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/wiliwipiwakupaxube.pdfIn PDF document text
- https://feniks9.ru/ckfinder/userfiles/files/fimunep.pdfIn PDF document text
- http://chinajnbt.com/images/upload/File/52771083720.pdfIn PDF document text
- https://faktxeber.com/resimler/files/tifure.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=avroid+keyboard+apkPDF 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_off0000bbed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBED | 20872 bytes |
SHA-256: 0facdb488ffc74a53b1dd242e084d7aba53f22568ba0fb4ee51afe5c77ea4301 |
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font_01_sfnt_off0000f31d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31D | 10364 bytes |
SHA-256: 7788e7a67c418e5c084b07dbcdaae7ed4f0e1c56d907fc5951aa45694b33d682 |
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font_02_sfnt_off00010a73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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