Malicious PDF — malware analysis report

Static analysis result for SHA-256 93aeca1dc12660cd…

MALICIOUS

PDF

67.3 KB Created: 2021-02-15 08:00:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: f08ee54c335ede75be094af109db1682 SHA-1: 117af11b795f2660b7b42ab42ff295e5424ec832 SHA-256: 93aeca1dc12660cde8509ec52086da581a8dfc8e7c03868e74cef42ca306764c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that appears to be part of a lure, referencing a specific accident to entice clicks. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=accident+on+snow%2527s+cut+bridge+wilmington+nc PDF link annotation
    • https://cdn.sqhk.co/kekelivig/EihxKgc/nemawuniresixemeje.pdfIn PDF document text
    • http://immorta-cross1.club/jufan2vc9v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478414/normal_5ffb473135562.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422894/normal_5fdd633d5fc5c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405459/normal_60043fa8b0c22.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/bYjhLFt/bumeduxameregoxoburazina.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492253/normal_5fdc6fb48ae51.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409797/normal_5ff2adaeb1fd7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457272/normal_5feb8e146a9d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393791/normal_5ff61eab4da36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482882/normal_5fc5bf19c3e34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490274/normal_5fc914f5a3959.pdfIn PDF document text
    • http://presentinsta.site/ato_agent_assessed_lodgement_deferral_formp0nvj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458122/normal_5ff5ac81dc904.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419433/normal_5fe5e4bb7f5f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459629/normal_5fdb8aebd9c90.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://baxuzotaxuli.epizy.com/paxogoxe.pdfIn PDF document text
    • http://lekamidoku.epizy.com/aloha_soft_king_sheet_set.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_off0000cb53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB53 5304 bytes
SHA-256: 8b6fb9473ac2ef78ff1c9df78fbd2032072b6c18cba6fbee23bc2ff245ec92c6
font_01_sfnt_off0000dd61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD61 10136 bytes
SHA-256: cf91dd3fb781914bd62047aa08cc2a402f919c090c0b65c6912bfea1a54de198

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