PDF malware analysis — malicious · af25f00fa9c40b3e

MALICIOUS

PDF

73.7 KB Created: 2021-09-15 21:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: 2a0bfb67347887239b33e3689ca453e0 SHA-1: ffd1ed2aee250d83ae46b85778b33711ff426a42 SHA-256: af25f00fa9c40b3e1f1fc9553e92c4af19e048f9dfeb2507037cee02e3eb98ef

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9947

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://queure.ru/uplcv?utm_term=lamb+to+the+slaughter+activities+pdf PDF link annotation
- http://kondicionery-himki.ru/upload_picture/file/29903323915.pdfIn PDF document text
- http://chukysovin.com/img-svc/files/23224474588.pdfIn PDF document text
- http://remont-etalon.ru/upload/files/2177556178.pdfIn PDF document text
- https://ladymamashop.com/uploads/files/202109100749367014.pdfIn PDF document text
- http://vssteel1999.com/ckeditor/userfiles/files/1973510572.pdfIn PDF document text
- https://avphunter.ro/ckfinder/userfiles/files/tunefazivavigobi.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136c4e61d13f---jovapemogunutofali.pdfIn PDF document text
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/19687671740.pdfIn PDF document text
- https://pachetedeturism.ro/images/files/bokugitakanumun.pdfIn PDF document text
- http://1666-3668.com/attach/userfiles/file/parixibipafukizigawigir.pdfIn PDF document text
- https://banderlogclub.ru/Files/file/nexazofaj.pdfIn PDF document text
- https://highfieldhousehotel.net/nbloom/fckuploads/file/7512320031.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f69fb15114---sifubiguzupuv.pdfIn PDF document text
- https://burgaseguros.com/userfiles/file/90391146532.pdfIn PDF document text
- http://ip-malkov.ru/uploads/files/nibekevowegevusezopolutuf.pdfIn PDF document text
- http://huucodatlanh.com/userfiles/file/xipumoliwebolise.pdfIn PDF document text
- http://maimungkorn.com/UserFiles/file/6838794982.pdfIn PDF document text
- http://birdwatching.sk/media/file/31465419594.pdfIn PDF document text
- https://holcom-solar.com/webroot/img/files/jiramobimuwugikunu.pdfIn PDF document text
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/liwubomuzepepof.pdfIn PDF document text
- http://omegapizza.net/uploads/files/wodujokufizikejuk.pdfIn PDF document text
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/67799845425.pdfIn PDF document text
- http://geofer.eu/userfiles/files/gapopuridevejotepab.pdfIn PDF document text
- http://etkindenetim.com/resimler/files/vexidixobubevapa.pdfIn PDF document text
- https://bizimpin.com/calisma2/files/uploads/benotozariletinutar.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_off0000bb20.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBB20	11224 bytes
SHA-256: `b3b9450fdaef7a21397b0499c247b3493ae9cf8526f67af829c1419897490c91`
`font_01_sfnt_off0000d50f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD50F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000ed21.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED21	17024 bytes
SHA-256: `28e3cc78debfa59d7e5e9086cf2d05ea0809ba593ffd753f982095b51c17a84a`

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