Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7893616184bb9e…

MALICIOUS

PDF

93.1 KB Created: 2021-02-17 10:01:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 2ce42abef37deed6ca7e47583eeb453e SHA-1: 99a872940c7ffc61f8a4066650b4a45b67bca99f SHA-256: bd7893616184bb9e413f90bc8cff65b44f212f77bf0d164fa177047450b483bc
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search result for salary information, a common lure for phishing or malware delivery. ClamAV and ML classifiers strongly indicate maliciousness. The presence of external URIs and embedded URLs suggests the document is designed to redirect the user to a malicious site.

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://jottigo.ru/strik?utm_term=how+much+does+a+navy+seal+team+6+make PDF link annotation
    • http://ergors.space/bizutuni9l7fr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415770/normal_602170b3a6a3a.pdfIn PDF document text
    • http://skidki-day.shop/easy_piano_sheet_music_for_jingle_bellsjqcfs.pdfIn PDF document text
    • http://psychologyrelax.xyz/egg_wars_minecraft_server40lo1.pdfIn PDF document text
    • http://kernig.online/nizuvakasiwifedalirizakifsxxu.pdfIn PDF document text
    • http://vkrowl.com/pay_my_boost_mobile_bill_for_free4ty80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464078/normal_6022350b19d61.pdfIn PDF document text
    • http://miiliioner.xyz/partnership_agreement_philippinesnaejb.pdfIn PDF document text
    • http://center-about.com/sisters_tv_show_bet792l3.pdfIn PDF document text
    • http://hookup153.site/storyboarding_essentialsy5v1a.pdfIn PDF document text
    • http://leaninrzpd.site/brahma_puranam_teluguvdv95.pdfIn PDF document text
    • http://good-production16.site/37864877442kxwgy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dalava/calendrier_juillet_2019__imprimer.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/appeler_en_masqu_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/81591732584.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/18305795519.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/classifying_rational_numbers_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/14579022534.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/mupusofejabuk.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/flower_bouquet_png_free.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB3 5516 bytes
SHA-256: 7ab748c06dd6cfbc53e366f9426dc738ee1a1a998d7b1e82ca2587986b0eb43f
font_01_sfnt_off00013f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F6D 11896 bytes
SHA-256: a0ffafd32696bd8f712b6ae8fabedf3525f2c342e1f877cf438ab75b1ddf6577

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