Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe65b67a6dfda5b…

MALICIOUS

PDF

79.0 KB Created: 2021-09-19 17:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 25cf8b2add7f6736ecd6452dd542a691 SHA-1: 43dd8eed3da10c4fa083d9bbf072be3624c6daff SHA-256: bbe65b67a6dfda5bb046c26f3bb5a581ef94e03a25d5bccd96c7f4727ac75f65
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://nomylo.ru/uplcv?utm_term=is+snapchat+removing+filters+in+2021 PDF link annotation
    • https://ycb.one/pro_pic/files/puseduniga.pdfIn PDF document text
    • http://ubytovna-krumlov.cz/userfiles/file/76758903723.pdfIn PDF document text
    • https://behbehaniprojects.com/uploads/files/78513020669.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/99829396737.pdfIn PDF document text
    • http://www.siposferenc.hu/html/61290437370.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/m9rqimcffmdjrbnc30io1lhh6r/dafotor.pdfIn PDF document text
    • http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/nelotedu.pdfIn PDF document text
    • http://synfarm.com/upload/files/58462801473.pdfIn PDF document text
    • http://transportdiverse.com/uploads/files/572616780.pdfIn PDF document text
    • https://vatlieutaphu.com/upload/files/62900282357.pdfIn PDF document text
    • http://basar-hemeringen.de/ablage/userfiles/files/75259341822.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/65852631685.pdfIn PDF document text
    • https://o2opr.co/userfiles/files/devilatevixu.pdfIn PDF document text
    • https://hygradeinsulators.com/images/uploads/file/naweli.pdfIn PDF document text
    • https://concurs-euclid.ro/upload/fck/71317993321.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/moxamutiretizid.pdfIn PDF document text
    • https://laps.pl/userfiles/file/zapajafapuwunuxuzadamaxi.pdfIn PDF document text
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1613d872985c3c---8876165297.pdfIn PDF document text
    • https://thehideawayresortpattaya.com/userfiles/files/xefedovuwigonilusevo.pdfIn PDF document text
    • https://alzubidi.com/userfiles/files/51148789085.pdfIn PDF document text
    • https://wyslijpaczki.pl/app/webroot/files/userfiles/file/93229621294.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/72734125779.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.

FilenameKindSourceSize
font_00_sfnt_off0000cdfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDFB 17912 bytes
SHA-256: dfab6d37aab022a8ba3cad469617b92d5675ffc8580a2efd2a6940dd35938421
font_01_sfnt_off0000fbc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000113d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113D9 11240 bytes
SHA-256: fe95f9619bc710092ca0939737b8ca0dfa69777178cee27e3e05f89d6ca6a338