MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics indicate it functions as a link farm, directing users to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://classconnbio.com/img-jacson/files/45122733698.pdf In PDF document text
- http://vicc.huh.hu/UserFiles/File/tivezuzejurovemibutigu.pdfIn PDF document text
- http://benthanhsgfarm.com/images/uploads/files/66111368861.pdfIn PDF document text
- http://nfrostov.ru/upload/files/99268685188.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/afda445e8b9756243eb6f56be44f5a00/34654985359.pdfIn PDF document text
- http://zanethompson.com/userfiles/file/46055804932.pdfIn PDF document text
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/10795c5e5b5e523e355788723ae8b531/begofitata.pdfIn PDF document text
- http://thuexedanang247.com/uploads/image/files/59104693892.pdfIn PDF document text
- http://apcmagon.com/userfiles/96604078620.pdfIn PDF document text
- https://jodhpurtravels.com/nbloom/fckuploads/file/betagekewilopov.pdfIn PDF document text
- https://xn--interpeas-r6a.es/upload/files/4851726955.pdfIn PDF document text
- https://majubesar.net/contents/files/16402205959.pdfIn PDF document text
- https://ku4ysk-9lgp4y.com/contents/files/87825704178.pdfIn PDF document text
- https://chaletsuenodesol.de/files/kobaniwig.pdfIn PDF document text
- http://misosmile.com/upload/editor/files/rasazugazuzegekeg.pdfIn PDF document text
- http://fittbikese.hu/files/file/94326602180.pdfIn PDF document text
- http://arqing.es/ckfinder/userfiles/files/19640722975.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1614781ccdc8ba---39556133258.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/lumezamemina.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b891821935---272389501.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/107v8onpvlnn99t5a3e5144o92/87489802336.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=calculating+work+functionPDF 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_off0000ac88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC88 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c49a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC49A | 16788 bytes |
SHA-256: fe2fd486c7204dc3233fa5b884f7f0ac7cbd93592a98e38bda62f94de5554e2f |
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font_02_sfnt_off0000ef59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF59 | 10520 bytes |
SHA-256: f276fac182f2ba586b3b5a8ea290fe7b6360cee3d667e241a690614e58042d83 |
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