MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. The presence of numerous external URIs, many of which are linked to disposable hosting and employ UTM parameters, suggests a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, further supporting the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://pistant.ru/uplcv?utm_term=call+of+duty+4+modern+warfare+apk+data+for+android PDF link annotation
- http://qamsar.org/userfiles/files/mapilegopulofidikepezexet.pdfIn PDF document text
- http://hyundai-dongdo.vn/images/files/raxaxewitizixam.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/9124161790.pdfIn PDF document text
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149faca7d8df---gukumibenur.pdfIn PDF document text
- http://logistra.fr/ressource/site-image/files/zodemiwefujinodavelunepaz.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/zawolidebamirazoxuvofidiw.pdfIn PDF document text
- http://upservice.expert/admin/ckfinder/userfiles/files/50531420532.pdfIn PDF document text
- https://rails-bg.com/fckeditorfiles/file/41637459533.pdfIn PDF document text
- http://freeski.hu/freeski/file/bajefidib.pdfIn PDF document text
- http://rickgrisolia.com/userfiles/files/12337804870.pdfIn PDF document text
- http://biirbeh.mn/images/content/file/4117746089.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/32867063192.pdfIn PDF document text
- https://avflash.nl/upload/files/nanowebizixisazo.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/wapiteregu.pdfIn PDF document text
- http://kotolantopeni.cz/file/sejemibixo.pdfIn PDF document text
- http://mkbeauty.vn/luutru/files/8853651875.pdfIn PDF document text
- http://kpdb.org/userfiles/files/29973029151.pdfIn PDF document text
- https://fetogram.com/images/upload/files/84038297259.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161469e5fbed89---82311333576.pdfIn PDF document text
- http://rent2day.ca/ci2/userfiles/files/84224827253.pdfIn PDF document text
- https://thegmsbihta.eruditiontech.com/userfiles/file/nudusulufejegikirezo.pdfIn PDF document text
- https://valenciamaids.com/userfiles/files/99653774684.pdfIn PDF document text
- http://talleresjpg.es/img/file/4101304580.pdfIn PDF document text
- https://ihotel2b.com/upfiles/editor/files/64718988889.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/wekujiwexe.pdfIn PDF document text
- http://copy2d.com/ftp/image/file/kekomodutazafedu.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_off0000e0f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF904 | 20500 bytes |
SHA-256: 683dbd5b091e558ed6876ece1000737debbc6c1c333bcd3e2c8b10f167435683 |
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font_02_sfnt_off00012e49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E49 | 10992 bytes |
SHA-256: 16eecb94f4928a41e30f3a48d1a4d0495047afb3ceebf516a8bda370af0d0154 |
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