Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b6a725449ae11c…

MALICIOUS

PDF

87.7 KB Created: 2021-03-22 22:25:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e46616e72997f3c4610c3dc0e5840d6d SHA-1: 18580439b3439e23b68ca5faa2dfdc9790807724 SHA-256: 65b6a725449ae11c33a5e2bb416f4aed8e9fbf8e68374d1e37dc1d5f3003c5db
96 Risk Score

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/award?keyword=calendar+ortodox+august+2020+pdf PDF link annotation
    • http://wupozigujoruzar.22web.org/60021836787.pdfIn PDF document text
    • http://sokegex.mywebcommunity.org/12498763147.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/xojafemori/vemoru.pdfIn PDF document text
    • http://joxigonulalotip.rf.gd/how_to_connect_directv_to_fire_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/wofafixojum.pdfIn PDF document text
    • http://pijularof.epizy.com/migufamugogolepajulutika.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/lapudotexusojalelirer.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/ralebimabot.pdfIn PDF document text
    • http://badubitoj.epizy.com/nomirenujowukolurumeka.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/81937409117.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/cteph_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/how_to_pick_a_lock_with_a_lockpick_set.pdfIn PDF document text
    • http://voledudetalobu.rf.gd/cat_in_the_hat_movie_dialogue.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/polycarbonate_sheet_roof_vent.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/kudoxavi.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/sine_and_cosine_rule_worksheet_answers.pdfIn PDF document text
    • http://xidalagep.myartsonline.com/68925450170.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/hbl_challan_form_uos.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_off0001199b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199B 5456 bytes
SHA-256: fb86f9bdfb9db10ef73b3f4685c39a14e89797bfc2c967bea4c9e2feac76193f
font_01_sfnt_off00012c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C3B 12184 bytes
SHA-256: 9cc60fea292f230f86c31cc7d0a87d56d08ba61ba2b9d13012444ad4f2222a77

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