Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd967df30686dc5…

MALICIOUS

PDF

77.7 KB Created: 2021-03-05 10:08:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: b062a65648da5be172c383b9a79aa364 SHA-1: 248a344004b67b4086488507488a7a1917cc033f SHA-256: 9dd967df30686dc531bdad1dd97b8165ed973d5e77cce000c05a89c0671013bb
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of the attack pattern, aiming to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/123?utm_term=how+to+manage+disruptive+student+behavior PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374860/normal_600a8ff411161.pdfIn PDF document text
    • http://bullbananavannaone.xyz/real_detective_season_2_puppet_master9v0ok.pdfIn PDF document text
    • http://mattelipsticks.site/gardenscapes_2_free_online_no_downloadwv18y.pdfIn PDF document text
    • http://fsbsiod.com/semidanasisotaxanilunai7ctv.pdfIn PDF document text
    • http://tells.fun/meepo_city_rider_2_for_sale7nw7a.pdfIn PDF document text
    • http://kamini33.ru/dugefejazevorifaz19sr7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496828/normal_5fe2ccbc0477b.pdfIn PDF document text
    • http://reduslimer.website/hp_officejet_5510_change_ink_cartridge81a70.pdfIn PDF document text
    • http://pristav.pro/28707143089p8pmt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476274/normal_5ff86fe8be94b.pdfIn PDF document text
    • http://zajowidased.iblogger.org/57062196262.pdfIn PDF document text
    • http://rawenspant.online/858079692981w1g7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419236/normal_5fd309f0319f9.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/ragejufa/likipemoponatosizub.pdfIn PDF document text
    • http://fezolal.rf.gd/dunijigikojuba.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/el_poder_de_cambiar_todo.pdfIn PDF document text
    • http://rodobokojezaga.epizy.com/87402438545.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/matlab_projects_for_electrical_engineering_students.pdfIn PDF document text
    • http://vexowiwoputam.rf.gd/daxezepokuzoj.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/job_analysis_process_template.pdfIn PDF document text
    • http://ribitotuv.epizy.com/ssc_mts_admit_card_2019.pdfIn PDF document text
    • http://maxegore.epizy.com/pamenegubipovulafomedoje.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/military_vehicle_tax_exempt_form_ct.pdfIn PDF document text
    • http://purevaxa.epizy.com/community_apps_android.pdfIn PDF document text
    • http://retexibew.rf.gd/vigov.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_off0000f319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF319 5592 bytes
SHA-256: 0485ef009b01cd323a32afbd38361a7e9dcb66026d09b86ea6cf18ea642e33eb
font_01_sfnt_off00010605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10605 10220 bytes
SHA-256: d37165e30c4bbbec8d9fd9ec767335beae9b50daea46ecb203b450630ec71b1a

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