MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or delivering malicious content. The presence of numerous external URIs, many pointing to disposable domains and forming a link farm, suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://fasaac.org/temp/files/wadopur.pdf In PDF document text
- http://hypotekaprezamestnancov.sk/res/file/tejulemo.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/66182596902.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/35882704395.pdfIn PDF document text
- https://keiba-like.biz/js/ckfinder/userfiles/files/ruvob.pdfIn PDF document text
- http://mprime.net/ckfinder/userfiles/files/91844935082.pdfIn PDF document text
- https://sanidom.pl/img/file/57749808231.pdfIn PDF document text
- https://toptenstudy.com/upload/files/BodyFile__6142195C32832.pdfIn PDF document text
- http://rracc.com/file_media/file_image/file/18988392454.pdfIn PDF document text
- http://a-xian-coat.com/uploads/files/202109140047058922.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4ac0a0ceb---pakejisuwituxeveduvirula.pdfIn PDF document text
- https://mchs.kz/userfiles/File/3657375701.pdfIn PDF document text
- http://finalbrand.cz/upload/file/5653264684.pdfIn PDF document text
- http://jiin-torng.com/uploadfiles/20210901173446.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/jikololivoxenolezuledum.pdfIn PDF document text
- http://vishwkarmaenterprises.com/webroot/img/userfiles/files/97691080558.pdfIn PDF document text
- https://terracell.pt/images/file/firerikurixodajoreb.pdfIn PDF document text
- http://erfaspot.com/resimler/files/58345800559.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/cc1104ade9b03527b3e68c2ba355397d/17779688114.pdfIn PDF document text
- https://clubsecurite.fr/webroot/upload/files/wugazoneviragagawimarad.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/32276203382.pdfIn PDF document text
- https://keyword-lda.pt/site/upload/file/pogemoverunexapekojosodi.pdfIn PDF document text
- http://actlogistic.vn/upload/editor/files/gerikilibeximani.pdfIn PDF document text
- http://petgears.com/app/webroot/files/file/19811881858.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=download+ldplayer+free+firePDF 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_off0000e331.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE331 | 10424 bytes |
SHA-256: fd1b813fe00387d22574e9b297cbca21374952670429a5286b79458a4d3a538b |
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font_01_sfnt_off0000faea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAEA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000112fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112FC | 18232 bytes |
SHA-256: bfbbe4e7b0472dd405fe8db185443f59655d189a29b52ad95d9f6af1fde7b607 |
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