Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe0a0964b1087a6…

MALICIOUS

PDF

89.8 KB Created: 2021-02-06 10:14:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 02ba9a77fd1e4d8cbe6c5d9567b51ea2 SHA-1: bce2efb7a52d22bca269e82f0acc68821e213c72 SHA-256: ebe0a0964b1087a6ef5ecdd879ec2a1b21d0ef576b11d9133e31e98cf83adb23
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified as a phishing attempt. ClamAV and ML classifiers also flagged this PDF as malicious. The document body, though heavily obfuscated, appears to reference 'Fortescue fishing report 2019', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/aws?utm_term=fortescue+fishing+report+2019 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418993/normal_60069bd63f12d.pdfIn PDF document text
    • http://kudretbozaci.com/imperative_mood_worksheet_with_answers70mqt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455881/normal_6002532d0334c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421056/normal_60026305b3fa3.pdfIn PDF document text
    • http://wegansit.space/etina_pro_ivotvys1p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379374/normal_600495db1e826.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473049/normal_5fe49d640f3a7.pdfIn PDF document text
    • http://sungo1.space/beat_racer_soundtrack89yoy.pdfIn PDF document text
    • http://zespodsvetkoy.site/atheist_experience_podcastepdz4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409396/normal_5fe6418871a69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465133/normal_5fcb44d05accf.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/figidireki/password_protect_file_adobe_reader_xi.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/50414761839.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/94297152099.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/risk_management_meeting_agenda_template.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10085 5472 bytes
SHA-256: e19e5a4f9dc90eb86434cfa0bf33c1c3a36e9987e520e70689ec4e61b8532022
font_01_sfnt_off00011327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11327 2504 bytes
SHA-256: 123b1ab14fb65fa98a494cb875f9718bd41ec25ef62475bfa64e60647bdfa566
font_02_sfnt_off00011e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0E 10980 bytes
SHA-256: 5b66385cf1c80fb523ee8e3688584db73b833367c41f78300c0622e4935a4f36
font_03_sfnt_off000143cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143CC 16312 bytes
SHA-256: 90b1a567101dad97bcbe9f1e810f4e53f62350a834f14a59f56c71d4e6a766db

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