MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ML classifiers and ClamAV as malicious, impersonating a document signing service to trick users. It contains numerous links to external PDFs hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. While no scripts were directly extracted, the nature of the links and the impersonation lure strongly indicate an intent to deliver a malicious payload or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Document signing service impersonation lure medium SE_DOCUSIGN_LUREDocument impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
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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://suadienlanhhanoi.net/upload/files/59505876273.pdf In PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c06e93f182b---lotedebigetenunawu.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/76c6f43b18771cacb200cbb3181b5119/87196441033.pdfIn PDF document text
- http://goldartline.ua/userfiles/file/sexiviwizu.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf6e26ffa8---botozon.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771c3d119ea---jotubaje.pdfIn PDF document text
- https://sonarmusic.hu/up_image/file/verewevupokejoviwapupi.pdfIn PDF document text
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/c2d38bea2e37bc9bd35727686c8f6b95/6014790325.pdfIn PDF document text
- http://walosports.cl/userfiles/file/vivon.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4bf5b3266---kumowozib.pdfIn PDF document text
- http://teaandtiarasottawa.org/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/44959742950.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160dc33028042c---68549208886.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084a2dce3b7b---redafejewivuvamos.pdfIn PDF document text
- http://aliglobshop.com/userfiles/file/90812733314.pdfIn PDF document text
- https://tch.lu/files/files/fagetuxekatetetotaxilur.pdfIn PDF document text
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/npbja00pok09p0trb9a19jmbf9/fubaloromoboji.pdfIn PDF document text
- https://cosmeticdermatologymiamibeach.com/uploads/data/files/35521616122.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/59310406550.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/nubifi.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ed3f278f5---25992028603.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160d36de9d0fc0---50454713419.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16108208e308da---50637755306.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f5bb2a57aa9---43492728105.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/13472626949.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/tuvisubekasorul.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=nuance+power+pdf+standard+3+testversionPDF 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_off0000e4af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4AF | 18220 bytes |
SHA-256: d658c02730527ea609b855afdf73d7d92a2d98af868817ddab32db1d1e5b66b7 |
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font_01_sfnt_off00011400.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11400 | 10968 bytes |
SHA-256: af3eb3516cf303a5964e3e18325f64d8502a8d266bdf79acb60a5a7f3a28bf48 |
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font_02_sfnt_off00012db8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DB8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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