Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6c3f5be6c356fd…

MALICIOUS

PDF

52.6 KB Created: 2020-11-30 13:09:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: aae78319a947f4181904a281e04d7444 SHA-1: 4f30d698e3c568014e4331f694040a6767589f42 SHA-256: ae6c3f5be6c356fd09700500f920535acd95d1ffc86d0afc841691325b6aeef9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many of which are benign, but one suspicious URL (trafffe.ru) is present. The PDF structure suggests it's designed to appear as a link farm, likely to trick users into visiting malicious sites for phishing or malware delivery. No scripts were extracted, but the PDF's nature points towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6791

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/aws?utm_term=poweredge+r710+idrac+firmware PDF link annotation
    • https://buxiniti.weebly.com/uploads/1/3/4/3/134309366/9067863.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_5f9affa023f32.pdfIn PDF document text
    • https://sezemizom.weebly.com/uploads/1/3/4/6/134622585/4285944.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd19809eac5d50e5691461/1606228352931/a_dogs_journey_book_reading_level.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60e57f4a-f363-4781-9524-4054c420c721/rockstar_full_hd_movie_1080p_filmyw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da51681a-8eaf-4e5f-b3f4-8ff8b537cc0d/17680228654.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2873493e9e2166fa49c3/1606232179813/79173446427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f32007e-97a2-44e6-b83e-72c104f6c2e7/wagepapugus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c9c0b90-1ed2-46f7-83ce-cc48919f5c6a/fojikimarabut.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf512b4c4d833b8bcda1d/1606219029061/most_catholic_king.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf61ed7acac6192ab8b851/1606377969245/convert_torr_to_atm_calculator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1402b75e-49ec-4ad8-9253-393f9f4d6238/matrices_basics_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba55bdf4-c103-4325-a54d-710166699fcd/34879887863.pdfIn PDF document text

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