Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3aca69e22fd0a6…

MALICIOUS

PDF

67.2 KB Created: 2020-11-24 03:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 7612b4f6d7ba57272be8f9e5965afcdb SHA-1: 1b657756379f7230c104d2f55692437d9eb87675 SHA-256: 3a3aca69e22fd0a605d77afa42e91d55946ac371062ebc6354e9cfaf1d305591
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=fast+%2526+furious+6+the+game+mod+apk'. This indicates the document's primary purpose is to lure the user to this malicious site. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an attempt to deliver a secondary payload or phish for credentials.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=fast+%2526+furious+6+the+game+mod+apk In PDF document text
    • https://sogovowezop.weebly.com/uploads/1/3/4/3/134324678/d570a2641e0c06.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/995c603c-29d8-4033-9e47-f8e8d2828c3e/fekapaxarepuzosadunep.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/justin_timberlake_twitter_instagram.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/sample_investigation_report_employee_misconduct_doc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b2b679d-2ea9-40e9-a25d-59c2c5c167d0/99174703799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd50be92-9196-4e9f-95de-47a5724bad30/20739613854.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/vmware_troubleshooting_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/nuxuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/larojitogirurivitubususi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cb5f423-d7e5-4a6b-b95a-2ef2124b6063/finding_the_equation_of_a_circle_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a57a67e6-0a66-4ec9-8f48-194b46a2242a/zimoxonulixamolom.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/kawizorerojufazotoje.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/29265778772.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_off0000cb28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB28 4500 bytes
SHA-256: ca0be03c46ad4714a9e0bab38ad3ae810c8f162883c8f0e7d422cf4a37181569
font_01_sfnt_off0000da7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA7C 11396 bytes
SHA-256: a0aa2d434d50f67137d225dbefd65e9850b0564029e1fbbe1a4279d4ba7e6d37

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