Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b686f6bca822f3d…

MALICIOUS

PDF

69.3 KB Created: 2021-10-03 15:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 4028a0a8a6f1b9712d7f972e65c9e9e7 SHA-1: 574d9dbf7394807702302015910c62e5651b9105 SHA-256: 2b686f6bca822f3d84b0ad2a3cd3a7611a3b6f41196999ef87945d3942f5c435
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://chcial.ru/uplcv?utm_term=multiply+10+x+2+divided+by+5+add+30+subtract+4 PDF link annotation
    • http://soldearenales.com/galeria/files/58248185302.pdfIn PDF document text
    • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/wotedobokidinazifos.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/1plpgnlq3q8ataaqk1jegnjrsc/51173886794.pdfIn PDF document text
    • http://restavratorstvo.com/ckfinder/userfiles/files/38204104602.pdfIn PDF document text
    • http://skmsm.com/userData/board/file/kenidazukim.pdfIn PDF document text
    • http://daugiavanthienphuoc.com/media/ftp/file/64611204187.pdfIn PDF document text
    • https://tdemo.order-pro.com/ckfinder/userfiles/files/jerivage.pdfIn PDF document text
    • http://moscreen.in/cmsfiles/file/sudabigodozilatowil.pdfIn PDF document text
    • https://rh4-h1tapi-turbo.com/contents/files/momagitobot.pdfIn PDF document text
    • http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/mijesuragolewewope.pdfIn PDF document text
    • http://divelife.kz/files/file/30836557221.pdfIn PDF document text
    • http://le-bouquet.be/userfiles/files/genurefaku.pdfIn PDF document text
    • https://costabravas.com/uploads/localidades/files/memobezu.pdfIn PDF document text
    • https://ivanamihic.com/files/datunewoxeduvenilitula.pdfIn PDF document text
    • http://edu-family72.ru/content/images/uploads/file/1484205860.pdfIn PDF document text
    • http://damnoen.com/ckfinder/pho/files/10675482799.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/69979306226.pdfIn PDF document text
    • https://tideandtigers.com/ckfinder/userfiles/files/20651733438.pdfIn PDF document text
    • http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/fudelo.pdfIn PDF document text
    • http://bonezi.morefriendship.com/upload/files/84678343849.pdfIn PDF document text
    • http://encino.kopanramen.com/uploads/files/57582381259.pdfIn PDF document text
    • http://harlit.com/upfiles/file/19982510691In 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.

FilenameKindSourceSize
font_00_sfnt_off0000af9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF9C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AE 14432 bytes
SHA-256: 337ba1e609c78519055a24fcb74843b3b6f4e2637f6c8e068341b69df57f9dc5
font_02_sfnt_off0000ebd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD7 11476 bytes
SHA-256: ea6ecd19f9cc7f6ce0117d6220707a195a2011f0f8bb25f6a30f54b3146244ad

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