MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of external URIs and a link farm suggests it's designed to redirect users to malicious content. The heuristic 'SE_SECURITY_BYPASS' is particularly concerning, as it indicates the document attempts to trick the user into disabling their antivirus, a common tactic for malware delivery. Although no scripts were extracted, the overall structure and heuristics point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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=half+blood+prince+torrent PDF link annotation
- http://fantasymusic.it/userfiles/files/duvufegodujozepumo.pdfIn PDF document text
- http://jn-zhsc.com/upload/walojeronixugimeno.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/83432474883.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16144be5ca62fc---tefixog.pdfIn PDF document text
- http://ersatzmonitor.de/userfiles/file/sotivebezikore.pdfIn PDF document text
- https://zoomkish.com/basefile/zoomkishcom/files/10369559706.pdfIn PDF document text
- http://oipipleszno.pl/userfiles/file/fenowujudagilinaruvobepe.pdfIn PDF document text
- http://dayou.tw/uploadpic/files/202109161604437862.pdfIn PDF document text
- https://testpensija.bankai.lv/ckfinder/userfiles/files/bogapunibovasalo.pdfIn PDF document text
- http://kripasec.com/userfiles/file/sizozewemujubozafinazaz.pdfIn PDF document text
- http://teamwork-poetschke.com/ckfinder/userfiles/files/nezabalumiribobupokon.pdfIn PDF document text
- https://fabriziochessa.it/userfiles/file/70283004356.pdfIn PDF document text
- http://koryosushi.com/uploads/files/wogupo.pdfIn PDF document text
- http://hieuchuan.com/upload/files/rufavesofoxi.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/30878620529.pdfIn PDF document text
- http://nuocmambason.com/upload/fckimagesfile/fe8be1e50c6d85846c890c10fa5f2650.pdfIn PDF document text
- http://www.diplomat2014.ru/ckfinder/userfiles/files/wojimatawozodowiviw.pdfIn PDF document text
- http://francescofesta.it/userfiles/files/3267548490.pdfIn PDF document text
- http://domplus.su/userfiles/files/guwalinimujedetefi.pdfIn PDF document text
- http://studioarchoggianiepartners.it/userfiles/files/38956224804.pdfIn PDF document text
- http://medigroupvn.com/upload/files/momuk.pdfIn PDF document text
- https://kiaavcilar.com/upload/ckfinder/files/81232461655.pdfIn PDF document text
- http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/f5qilft05guq77q6j3bulcrt3fmdss0f/77151454697.pdfIn PDF document text
- https://samsunyapi.com/userfiles/files/74808603846.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_off0000d8d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D1 | 18288 bytes |
SHA-256: 768131ca558cc36748fce2ebdb030e1d0439500b11e0d5e627bf22e777b44500 |
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font_01_sfnt_off00010879.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10879 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012090.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12090 | 10576 bytes |
SHA-256: 9da3a68cb53c8b8ad57b97b70455bc3b6a21ad0bb7dcaf252463c390bc55c4de |
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