Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bae9b31e004ae70…

MALICIOUS

PDF

72.6 KB Created: 2021-02-20 00:18:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c9326c7a26a591f9cf7afe56c6eee9e SHA-1: 6065adf0191b91cdc37c7a742e5ff8ce9f6ade09 SHA-256: 2bae9b31e004ae7073faed4fed83db12c78960d85dfc473482eced46c9a7c8a6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a site designed to appear as a search result, likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the presence of external URIs and the nature of the detection suggest the PDF is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wb?keyword=travel%20trac%20fluid%20smart%20b+%20trainer%20review
    • http://baxemoge.iblogger.org/boson_netsim_10.pdf
    • http://nupigit.22web.org/8018397546.pdf
    • https://cdn.sqhk.co/rujiwujik/ugjshbV/1668488009.pdf
    • https://cdn.sqhk.co/duloputemab/hbijepV/silkie_chickens_for_sale_near_me_craigslist.pdf
    • https://cdn-cms.f-static.net/uploads/4491936/normal_5fd7ce1b234ee.pdf
    • http://smartbright.club/95017507437tapzk.pdf
    • http://idealica-italiauficiale.website/john_deere_410_backhoe_parts_on_ebayplm3t.pdf
    • http://artistichomesolutions.com/quran_teacher_software_free_downloadhxizi.pdf
    • https://cdn.sqhk.co/mugolino/97Dbig5/rugby_world_cup_2020_start_date.pdf
    • http://francobusiness.com/xepikurizafuho9mr.pdf
    • https://cdn-cms.f-static.net/uploads/4450728/normal_600f6f3873405.pdf
    • http://trikotoria.ru/wedding_font_calligraphy_freec5y1d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/palikuvexake/arabic_phonetic_keyboard_android.pdf
    • https://s3.amazonaws.com/mokamoba/cannot_reinitialise_datatable._for_more_information.pdf
    • https://s3.amazonaws.com/pisedij/mervyn_king_report_on_corporate_governance.pdf
    • https://s3.amazonaws.com/jugobimuraje/tokufifojusozebazevize.pdf
    • http://delozaroj.epizy.com/98462255825.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dea7.bin
af3f77844f934e6e0f142b80d75e92901428b463b2e67a517ced05991f27d8e2
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA7 5408 bytes
font_01_sfnt_off0000f107.bin
61c897728aec3d2ac623de1f999164cf78b51b86a441f73339d11b2a97f4abaa
pdf-font-stream PDF embedded font (sfnt) at offset 0xF107 10560 bytes