MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URLs, many pointing to disposable domains, suggests a phishing or malware distribution campaign. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL patterns strongly indicate a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://infrive.ru/uplcv?utm_term=how+to+check+ram+rom+in+android PDF link annotation
- http://dytac.hk/userfiles/lowoniwupam.pdfIn PDF document text
- http://aotwresort.net/ckfinder/userfiles/files/wiwoxeruzolerusenoguzavu.pdfIn PDF document text
- http://santamariamikado.com/uploads/files/zuvovaruxovosijasu.pdfIn PDF document text
- http://www.workbythai.com/admin/assets/images/bonaripemadosegepobowuje.pdfIn PDF document text
- http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/1071413754.pdfIn PDF document text
- http://renknh.com/ckupload/files/96179224459.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9443e9740---rikatitezunupuzimo.pdfIn PDF document text
- http://www.cenlafilm.com/siteuploads/editorimg/file/87617946566.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/volaravokitevuf.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/86818767436.pdfIn PDF document text
- http://standdominica.org/files/files/jedupizogiku.pdfIn PDF document text
- https://zlato-eu.cz/upload/files/93284783969.pdfIn PDF document text
- http://locum-system.pl/userfiles/file/403624157.pdfIn PDF document text
- http://studiotecnicolamanna.com/userfiles/files/petez.pdfIn PDF document text
- https://fotofidelity.cz/userfiles/file/zitupexusunonomerapu.pdfIn PDF document text
- http://opgzvh.hr/upload/file/ludobevasorojelawibekor.pdfIn PDF document text
- http://1night2day.com/UserFiles/file/73813207127.pdfIn PDF document text
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/19919446828.pdfIn PDF document text
- http://soupworld.de/upload/file/68666095876.pdfIn PDF document text
- https://dazhonghua1688.com/ckfinder/userfiles/files/9015410960.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/xivomew.pdfIn PDF document text
- http://www.bash.cl/media/file/zagogejimazo.pdfIn PDF document text
- https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/rafogariwamo.pdfIn PDF document text
- http://www.beautyvogue.ch/Files/file/20030688284.pdfIn PDF document text
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/xatedasopavinasurubarof.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_off0000b6f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6F9 | 10592 bytes |
SHA-256: 795b561bbef74b7797427b795c22903011b8b22398855f89b4cdac3c4f5d4fc1 |
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font_01_sfnt_off0000cefc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEFC | 17792 bytes |
SHA-256: 6182cce2d667be0951878635965001c4e1053566433a97f66c274f7bec97e0cc |
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font_02_sfnt_off0000fc25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC25 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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