Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9ea5942d4b8c24a…

MALICIOUS

PDF

86.0 KB Created: 2021-02-27 07:31:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: b83e7d1e2ab0ad2ce7b0379a8f67efd0 SHA-1: e07bef26a6a1d9fc69e531bdc97a48f50c424707 SHA-256: a9ea5942d4b8c24aa4bab05f7de4c7fc5824c929d32634315c043239b21ee604
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, disguised as a search result for a book chapter. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's 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://dugedepap.ru/award?keyword=chronicle+of+a+death+foretold+chapter+3+pdf PDF link annotation
    • http://vaxisezawoged.scienceontheweb.net/wofasibera.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/covalent_bond_practice_worksheet_answer_key.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476446/normal_5fe899edd5a39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370547/normal_5fddf4bfa21a3.pdfIn PDF document text
    • http://vuwimoxit.mygamesonline.org/98586571231.pdfIn PDF document text
    • http://sawedes.mywebcommunity.org/how_do_you_charge_a_noco_gb40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448986/normal_601965e51df55.pdfIn PDF document text
    • http://xufamorazogubov.sportsontheweb.net/77091584750.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449422/normal_5fc9e1e295fd2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454977/normal_5ffddb5e2c1fa.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/how_to_read_a_welders_blueprint.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wunojipu/rogavibuwufixen.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/ladokibekagitiguxunuk.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/angry_birds_epic_rpg_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/vuwobujuwuledipofamid.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/47206611681.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10733 5040 bytes
SHA-256: 6d745f8eca6e21414587b71be4e9c323019d7af20dbf9339e1021e103aa9c050
font_01_sfnt_off00011847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11847 10560 bytes
SHA-256: cd8478c9765761bcfda081de67763decb598ef21cd24dcd15cbeb17367b10f1a
font_02_sfnt_off00013c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C47 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.