MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URLs, some pointing to IP addresses, and a heuristic indicating it's a link farm designed to trick users into downloading files. The presence of a 'download button' lure further supports a phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=fundamental+of+nursing+1st+year+book+pdf PDF link annotation
- http://hcbarrett.com/user_area/file/puxiju.pdfIn PDF document text
- http://smartvoicecom.com/userfiles/zebodedavawo.pdfIn PDF document text
- https://portofcrotone.com/dati/upload/file/pakidagulegadixi.pdfIn PDF document text
- http://steelfurniturecn.com/d/files/36877464884.pdfIn PDF document text
- http://kd-council.com/upfile/files/82431989858.pdfIn PDF document text
- http://cutskytools.com/d/files/75654869701.pdfIn PDF document text
- https://dhins.com/testingsites/advantage_aviation/assets/media/file/6844398887.pdfIn PDF document text
- http://www.bluewhaleline.com/image/upload/File/40273209147.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e86621bb7f---48064318102.pdfIn PDF document text
- http://140.121.161.111/ckfinder/userfiles/files/34480022859.pdfPDF link annotation
- https://sistemagestiondpr.com/userfiles/file/fubafegijox.pdfIn PDF document text
- http://www.icf-plant.com/files/file/wujorigod.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/newino.pdfIn PDF document text
- http://minuspk.ru/minuspk.ru/userfiles/file/wujilulinogud.pdfIn PDF document text
- http://xprchemical.com/upload/files/589730310.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/03d2ce0e17cab2f21f745d40c9def22b/83432875805.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/sejuvuzafenudavuva.pdfIn PDF document text
- http://seksdagen.nl/userfiles/file/pewubamulufitik.pdfIn PDF document text
- http://zopos.zohukum.com/ckfinder/userfiles/files/82607246641.pdfIn PDF document text
- http://topspeed4wd.com/ckfinder/userfiles/files/44785763784.pdfIn PDF document text
- https://drakbera.com/ckeditor/ckfinder/userfiles/files/19157234751.pdfIn PDF document text
- https://euchebnici.com/img/file/78719099327.pdfIn PDF document text
- http://bettaletroom.com/file_media/file_image/file/97799116489.pdfIn PDF document text
- http://cy2hand.com/userfiles/nojoxuwexoritunume.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://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_off0000f7ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011011.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11011 | 18320 bytes |
SHA-256: 95f9b2426ead895c8d6431d6cebbf4a815b58edd7dbe08f63bdfa0dd004fa509 |
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font_02_sfnt_off00014038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14038 | 11316 bytes |
SHA-256: 70171cac77ea941bb4009107d91d8340aa91475feaa39259d2e9005fa0e6ff43 |
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