Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7e9094b658031e…

MALICIOUS

PDF

37.5 KB Created: 2020-11-09 10:11:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 8ce774aeccb626193c6c6007220b1202 SHA-1: a3b05a4ff487d2a72980c08369e421ba0dcc56fa SHA-256: fe7e9094b658031e07ad980d56788ce9bc77bb1aff1c163be1e928f8f10a77e0
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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://gettraff.ru/123?keyword=words+starting+with+fate In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369182/normal_5f9044ac3d754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402519/normal_5f9d069d5689f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366325/normal_5f94409e3da0f.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/9cce05c3-81fd-4bc5-a560-dfd1f5ff405a/pelican_mall_sinema_bilet_fiyatlar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b46d18f-f040-4cf3-9af4-f8679eaf9306/ffxii_gambit_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/setafesiti.pdfIn PDF document text
    • https://fopujume.files.wordpress.com/2020/11/45891798845.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/cardiovascular_system_mbbs_notes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bae90a1-09d4-4ba8-9a74-648cc717f84f/binabipotiwimanupovix.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/96481492073.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/rrb_je_previous_year_exam_paper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb7c28f5-3685-4327-95a2-45d462cc9d3d/jenukusope.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/fubozuredakirubori.pdfIn PDF document text
    • https://s3.amazonaws.com/medadele/jupipavule.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_off0000536f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x536F 5244 bytes
SHA-256: 6d6700eedde03844976a6e9addc7e1d4581979376936e4ac45fe5af261fa7cb3
font_01_sfnt_off0000655a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655A 10956 bytes
SHA-256: 62b52a0a129a38635b234204ab4dbe7d6f4d770f6e20ff27f72e0f602131be07

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