MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to disposable domains, which is characteristic of a link farm used to obscure malicious destinations. The document body, though heavily corrupted, suggests a lure related to a technical manual, likely to trick users into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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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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://www.sumnercountyhospital.org/sites/default/files/webform/bavowusakixonodokuja.pdf In PDF document text
- https://ambrose.edu/sites/default/files/webform/58588935603.pdfIn PDF document text
- https://www.telluridescience.org/sites/default/files/tstc-applications/kuvusuwube.pdfIn PDF document text
- http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/37570077738.pdfIn PDF document text
- https://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/ratasivovo.pdfIn PDF document text
- https://www.newburghgroup.com/sites/default/files/webform/resumes/falaburisidibiwad.pdfIn PDF document text
- https://natsihwa.org.au/sites/default/files/webform/80931084074.pdfIn PDF document text
- https://www.jsif.org/sites/default/files/webform/95147346690.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/21073527915.pdfIn PDF document text
- https://ambrose.edu/sites/default/files/webform/juremetepatofuf.pdfIn PDF document text
- https://www.osgeurope.com/sites/osg-corporate.dev/files/webform/19824824677.pdfIn PDF document text
- http://cicatsalud.com/html/sites/default/files/webform/foxegedukob.pdfIn PDF document text
- https://www.blplegal.com/sites/default/files/webform/julojulixizegusu.pdfIn PDF document text
- https://www.blplegal.com/sites/default/files/webform/54305505708.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=syncrowave+250+dx+manual+espa%25C3%25B1olPDF link annotation
- https://minorsoncampus.princeton.edu/system/files/webform/janoruzafasolefixos.pdfIn PDF document text
- https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/8342566550.pdfIn PDF document text
- https://drones.princeton.edu/system/files/webform/61493424170.pdfIn PDF document text
- https://printandmail.princeton.edu/system/files/webform/60959229638.pdfIn PDF document text
- https://ec.europa.eu/eip/agriculture/sites/default/files/webform/44438097533.pdfIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015927.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15927 | 6008 bytes |
SHA-256: cfb731b0a7181d0888a58844f3e65434d9da7ab755599c4ebf7920f029efa45c |
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font_01_sfnt_off00016d48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D48 | 12204 bytes |
SHA-256: 6ae2419397f31cef622d1680f00004523a84f5e1d97f2c589fd095c9caac1151 |
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font_02_sfnt_off000194af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x194AF | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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