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, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests potential execution of commands, possibly through embedded scripts or exploits, which is further supported by the ML_NYX_PDF_MALICIOUS score.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://pistant.ru/uplcv?utm_term=how+to+add+font+in+android+phone PDF link annotation
- http://veterky.ru/ckfinder/userfiles/files/nevolezuviw.pdfIn PDF document text
- https://anglarill.net/userfiles/file/fimuvomexafitunefi.pdfIn PDF document text
- http://jia-longsofa.com/uploadpic/jialong151126/files/202109011617025763.pdfIn PDF document text
- https://envida-nieuws.nl/bsb_website/upload_fck/file/jadumejisofalejukibobujav.pdfIn PDF document text
- https://soenen-pneus.com/upload/file/49106082352.pdfIn PDF document text
- https://floridainvestment.cz/files/file/77060749538.pdfIn PDF document text
- https://hotelangela.hu/userfiles/file/67134333099.pdfIn PDF document text
- https://fsbulletsandbrass.com/userfiles/files/39433316785.pdfIn PDF document text
- http://basse-normandie.annuaire-regional.com/ckfinder/userfiles/files/zelegebaz.pdfIn PDF document text
- http://phdpecs.hu/userfiles/files/lefef.pdfIn PDF document text
- https://shopexpert.com/app/webroot/files/userfiles/files/57045145458.pdfIn PDF document text
- https://408of53crownstreet.com/assets/media/files/5224364203.pdfIn PDF document text
- http://benly-carson.com/product/files/33886696884.pdfIn PDF document text
- http://fruhmann-elektrotechnik.at/tofefedoboxitatepizipilut.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e39a05b98b---nevokagaxirojusatet.pdfIn PDF document text
- http://chip-chup.hu/upload/file/5282271603.pdfIn PDF document text
- https://cfi-registration.org/buzzboxgift/img/userfiles/files/saxagovi.pdfIn PDF document text
- http://architettoseneca.com/userfiles/files/67543810666.pdfIn PDF document text
- http://lawyergz.net/uploadfile/files/faxuveza.pdfIn PDF document text
- http://domuran.pl/files/file/lanixemudexakibefuwurera.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/54t4qunt0c3qevqkiopcmd8brd/37687630347.pdfIn PDF document text
- http://ideatity.com/ckfinder/userfiles/files/17283372532.pdfIn PDF document text
- http://mingmitrcoffee.com/user_img/files/37653629250.pdfIn macro / runtime command snippet
- https://cafemocion.com/userfiles/file/lavovozonafazubepegenigu.pdfIn PDF document text
- http://ideatity.com/ckfinder/userfilIn 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_off0000e9d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D2 | 17620 bytes |
SHA-256: f69b2462546b708dba9ddb83c9203935b5e4aa3a930fe554a6170758e708fdbc |
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font_01_sfnt_off000117ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117EA | 10456 bytes |
SHA-256: 61df6aef4bf0c0fbca1edc2e4c61224368c440f10f9fe88082548749fc359eec |
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font_02_sfnt_off00012f99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F99 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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