Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2f28e5800d7c12…

MALICIOUS

PDF

72.2 KB Created: 2020-12-28 00:00:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: d8bdc1fc1ec172c25161686f927459a0 SHA-1: bf12c323ba5565640b51043ccc57518d192c7cfd SHA-256: 5c2f28e5800d7c12581e70c7aa2d3920d57b959833ca59e53b279124d454b1b8
96 Risk Score

Malware Insights

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

The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text that may be intended as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafffi.ru/123?utm_term=scary+or+die+clown PDF link annotation
    • https://cdn.sqhk.co/vogoxaginoje/fhBnIhc/bolajafovi.pdfIn PDF document text
    • https://cdn.sqhk.co/solumapidema/aihicc7/ragovimanozozumuxon.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/blhfgje/9770353409.pdfIn PDF document text
    • https://cdn.sqhk.co/gasawivu/wiibSge/island_of_the_blue_dolphins_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/renapudovi/cpom8hd/61420398136.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/regovadeje/employee_warning_notice_free_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/25984496477.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be4d6c4b-4361-4ab2-8658-27d3e7a512af/81562978087.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/xusovubadazuxuvovikusanez.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/weebly_unblocked_games_home.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_off0000dda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA0 5052 bytes
SHA-256: e27c73d95d31c61aeb0a880fdadce980784d746160d4a8d9bec984c2bb960bc5
font_01_sfnt_off0000eef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF5 11152 bytes
SHA-256: 5d6495a0a39ecab24723677a4e6f45f8b39e48f35a2de203ea59a3eb7ca24789

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