Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca83710ec8cab0b…

MALICIOUS

PDF

44.8 KB Created: 2020-11-03 12:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2749e8e5bf4e7d147d757ef815002759 SHA-1: 9f733fef713dc35280a1f4d598c702f419e4bf99 SHA-256: bca83710ec8cab0bf72649319f493fec5b5a1baed3a89dc57f8bc2c6adbe4b11
94 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ggtraff.ru'. The document body also contains the same URL, presented as a lure for a free movie. This indicates an attempt to redirect the user to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ggtraff.ru/aws?keyword=watch+free+full+sonic+the+hedgehog+movie In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_5f9156e1bca00.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/jexijer/live_and_licence_agreement_format_in_marathi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82f1a9cb-3024-41ce-b66f-fc70d2d0f502/oar_exam_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/behavioral_interview_questions_for_managers.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/difowisumalivoguzulod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f206b3d1-a2de-4a3c-a346-f185b19e6b97/annie_dillard_ways_of_seeing.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/engineering_drawing_book.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/arcsight_architecture.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/fenozibejaz.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/3857340261.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a882170b-4c0d-48de-b31a-b27b5cea2e14/32436078826.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c8c3f83-c16a-40ed-a822-f515a6278428/66555128447.pdfIn PDF document text
    • https://s3.amazonaws.com/timafatafej/lord_of_cinder_weakness.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5ce454b-6fe2-4aa1-8968-4a6926645cd2/manual_for_alexapure_breeze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c491b58b-d24a-4987-a228-14c2eb01c986/84267337665.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_off00006f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6A 5508 bytes
SHA-256: cba9066fbb64bd7ce34bd5b52d964a8f522c939ce18965a9255d6782fb8794c8
font_01_sfnt_off00008210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8210 10696 bytes
SHA-256: d003625556a38406119e729e659e44390892f5815ac2b46707e0d9daef509fd2

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