Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a773bb8ccdcedee…

MALICIOUS

PDF

78.9 KB Created: 2021-02-23 23:45:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bd9cb06f54b6df781bc226d5bc79ff84 SHA-1: acb6209178f3d3e51cd75b21dcada5a968837240 SHA-256: 7a773bb8ccdcedee37459c6740a4459e232b751807c57544cea82f1d47d3bdbf
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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+steel+does+turkey+export+to+the+us PDF link annotation
    • http://tixshopclub.fun/denture_adhesive_reviews_ukr7bj0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470545/normal_6004f9b13bd46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425727/normal_5ffff0c053ce3.pdfIn PDF document text
    • http://francobusiness.com/health_information_management_jobs_melbournezmiih.pdfIn PDF document text
    • https://cdn.sqhk.co/xopigotax/bYigXL8/gukofajosumupew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_602501c316e9e.pdfIn PDF document text
    • https://cdn.sqhk.co/lokiwejawe/cjcrEW2/safoxexukanovi.pdfIn PDF document text
    • https://cdn.sqhk.co/molewekane/iPRjdSB/perfect_soccer_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://doruxujegajaso.rf.gd/pumefepivopasaxapadax.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/911_cdmx_alerta_sismica_apk.pdfIn PDF document text
    • http://fuwujovul.epizy.com/how_to_study_for_the_gre_quantitative_section.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/australian_ethical_fashion_report_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/gabirediwuru.pdfIn PDF document text
    • http://bodamuma.rf.gd/bohemian_rhapsody_piano_sheet_music.pdfIn PDF document text
    • http://wuriwafu.epizy.com/vacation_planner_itinerary_template.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/buvimenojuvirugilini.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/goods_services_worksheets_1st_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/zowosojiguwuzajatuto.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_off0000f5ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BA 5392 bytes
SHA-256: 9dfc4c9076f26b576e039ee43088ea52043c03b6422d7803d727fda3abc16671
font_01_sfnt_off000107fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107FB 11108 bytes
SHA-256: 3887396ea9adb4a27d358bd65e2d565c93c4962091c06109b8051786c2cc8484

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