MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic suggest a phishing or malware distribution campaign. The presence of 'SE_LOLBIN_RUN_COMMAND' further supports the execution of malicious commands.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://nomylo.ru/uplcv?utm_term=how+do+i+stop+my+phone+from+updating PDF link annotation
- https://lmbri.com/WYSIWYGImage/file/22434271323.pdfIn PDF document text
- https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/megijelenakalaleganof.pdfIn PDF document text
- http://solarhomepage.ch/fckeditor/editor/images/file/loxepalipolawe.pdfIn PDF document text
- http://bxbrdh.marketsearching.com/upload/files/97753870046.pdfIn PDF document text
- https://fibaquitaine.fr/cebatrama/userfiles/files/vudawibekesi.pdfIn PDF document text
- https://butchercurnow.com/img/shop/contents/fevekinanurum.pdfIn PDF document text
- http://geomanteia.com/userfiles/files/timesobuvegunak.pdfIn PDF document text
- https://celebicatering.com/upload/ckfinder/files/86888969192.pdfIn PDF document text
- http://icsbc.ru/fuploader/file/7620846.pdfIn PDF document text
- http://fulepmark.hu/nyebu/fulepmark/userfiles/file/24504151442.pdfIn PDF document text
- http://pixel-pro.ru/upload/file/21395869619.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/wonumezefos.pdfIn PDF document text
- http://thibangoto.com/app/webroot/uploads/files/6329573861.pdfIn PDF document text
- http://nebovsem.ru/app/webroot/files/files/batapi.pdfIn PDF document text
- https://termofriz.rs/files/23578835758.pdfIn PDF document text
- http://www.saletime.gr/admin/fckfiles/file/36885211740.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/20232693065.pdfIn PDF document text
- http://bxbrdh.marketsearching.com/upload/files/59852843041.pdfIn PDF document text
- https://etevent.itweald.com/uploads/files/6132568815ad3.pdfIn PDF document text
- https://pt2-turbo-j3t.com/contents/files/bavetavufek.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/81796634174.pdfIn PDF document text
- https://masterjobintl.com/ckfinder/userfiles/files/58903335132.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/jepesogazeno.pdfIn PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a93374856---nafadobo.pdfIn PDF document text
- http://charmingcurls.se/upload/file/pulikinufoxenovusa.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/piwamefipobagew.pdfIn PDF document text
- https://kasihpaham.com/contents/files/82273515370.pdfIn PDF document text
- https://pinpointIn macro / runtime command snippet
- 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_off0000db24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB24 | 11192 bytes |
SHA-256: b7119b16e942a70f50263cd57c3f799dbb9b51a57e3570705c0f78910905be14 |
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font_01_sfnt_off0000f4fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010d0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0E | 18968 bytes |
SHA-256: cc67951a756ddcedf6f6f31963050bbc5e4c9ab509f20e393ed0e6c4058f6b7e |
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