MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to phish or distribute further malware. No scripts were extracted, but the structure and embedded URLs strongly indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://archissimo.eu/userfiles/files/1801785209.pdf In PDF document text
- https://pernambucoimortal.com/imagens/files/sijezemugojef.pdfIn PDF document text
- https://b2bircruise.travflex.com/bot/ckfinder/uf/files/gadufikekalumibatowux.pdfIn PDF document text
- http://kanalizace-ul.cz/userfiles/file/64583162659.pdfIn PDF document text
- https://equinox-e.com/upload/UserFiles/file/2103225796.pdfIn PDF document text
- https://ubitanduk.com/contents/files/fosujowokapotodopowexuwa.pdfIn PDF document text
- https://www.idd.no/ckfinder/userfiles/files/82987981382.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/cfa2bd595072bda73056a2b479539736/80854504705.pdfIn PDF document text
- http://jewelry-shopping-city.com/uploads/files/202109091418214655.pdfIn PDF document text
- https://morethancars.eu/uploads/edytor/file/16800990967.pdfIn PDF document text
- http://doctour.hu/uploads/ckfinder/userfiles/files/dedesoviziz.pdfIn PDF document text
- http://blueview.nl/app/webroot/files/userfiles/files/11519388258.pdfIn PDF document text
- http://studiomuraca.eu/userfiles/files/kubadav.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210902_F2CA08A0CF443E0E.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c12435b8c---71861712743.pdfIn PDF document text
- https://bomando.bomsolar.com/uploadfiles/files/1193228213.pdfIn PDF document text
- https://www.mnogotrop.com/ckfinder/userfiles/files/winusalomosumap.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/cff1a34d082b2113b748997772cb8a62/84136627091.pdfIn PDF document text
- http://risme.vn/files/vebewetimadulibuv.pdfIn PDF document text
- http://ampletrekking.com/userfiles/file/jizawitatijujinetosavo.pdfIn PDF document text
- http://fullerton.kopanramen.com/uploads/files/90097248915.pdfIn PDF document text
- https://maffart-guy.com/userfiles/file/45299451392.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=no+one+knows+what%27s+like+to+be+the+bad+manPDF 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_off0000ba75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA75 | 10744 bytes |
SHA-256: 14356669a4b654fd7c4d77db585ed0284fc22711588090cac9a632e0abec84d9 |
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font_01_sfnt_off0000d310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD310 | 16288 bytes |
SHA-256: ddbce01702c3a961555cecf7f804d7870c00692a8e5749ac0ec36d930493b377 |
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font_02_sfnt_off0000fc97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC97 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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