MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and forming a link farm, suggests a phishing or malware distribution scheme. The heuristic 'SE_SECURITY_BYPASS' indicates the document may instruct users to disable security software, a common tactic in malicious documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://wenyanchem.com/upload/files/kumiper.pdf In PDF document text
- https://pasarantogel2.com/contents/files/55945178846.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/99509835656.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/4740190296.pdfIn PDF document text
- http://festacreativita.org/userfiles/file/744728662.pdfIn PDF document text
- http://techscreening.com/userfiles/files/vapanividijokidoluz.pdfIn PDF document text
- https://numen-wow.com/userfiles/cloud/files/95976403170.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/9a848de541bbf65c4a5cea945ebe63d9/67092721288.pdfIn PDF document text
- http://transbur.ru/admin/ckfinder/userfiles/files/53326873855.pdfIn PDF document text
- https://icrs-as.com/userfiles/file/kubenebizudizag.pdfIn PDF document text
- https://next-engineering.com/userfiles/files/35003143088.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/87929496091.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/xesew.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/7739269993.pdfIn PDF document text
- http://kssi.ir/public/userfiles/file/95295916948.pdfIn PDF document text
- https://zlataraburmevuckovic.com/files/96243703441.pdfIn PDF document text
- http://www.santabriganti.org/admin/ckfinder/userfiles/files/bajuzuzinufejaxomiwo.pdfIn PDF document text
- https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/ketalagokipazulogebizir.pdfIn PDF document text
- http://koppeika.ru/userfiles/file/80147235325.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109042236016246.pdfIn PDF document text
- http://belean.pl/userfiles/file/63416175620.pdfIn PDF document text
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/fn0hfv6rcv89ejt6ehk3sr44m5/8953279476.pdfIn PDF document text
- http://villkasz.hu/editor_up/91255296298.pdfIn PDF document text
- http://okvin.org/userfiles/file/letazomazibatebez.pdfIn PDF document text
- http://yasaitogo.com/uploads/files/64402023915.pdfIn PDF document text
- https://birsamundapark.in/userfiles/files/50403274958.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=camera+and+mic+blocker+apkPDF 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_off0000df1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF1C | 18780 bytes |
SHA-256: ac158095aabad1abdf3207d01a26712ba8530c0caaaea8ea04729b614ded5463 |
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font_01_sfnt_off00010f7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7C | 10672 bytes |
SHA-256: f8e07c6b9c725e73a8a633081a577b32572c4fad8305b9f0c6fac6a75cb825eb |
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font_02_sfnt_off00012793.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12793 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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