Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ff42078b06e4e4…

MALICIOUS

PDF

83.9 KB Created: 2021-03-09 05:50:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 3caca44a1326c34c5f6f76b450587f72 SHA-1: 82c7b302b0c0e2a551dfdcb78f5b23f645128820 SHA-256: 32ff42078b06e4e46f03e91bbac9a446f6de9f0b4c76c155e9e22ea80080d859
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a page related to installing a trimmer head, likely a phishing lure. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to a malicious site, potentially for further exploitation.

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://maypoin.ru/strik?utm_term=how+to+install+ryobi+bladed+trimmer+head PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4443617/normal_5ffe4b29736c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456399/normal_6046690aabb86.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418968/normal_5ff03b0764258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449998/normal_602d8cfe29e8f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479679/normal_5fcc7e43348da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415292/normal_6039492955ff4.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/73661812571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475861/normal_60110ab6279f4.pdfIn PDF document text
    • http://xifadezuzurap.medianewsonline.com/40801830226.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426701/normal_5ff5ebf178410.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417643/normal_601a878576f5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378831/normal_5fce8850ccd23.pdfIn PDF document text
    • http://suboxobuwofum.iblogger.org/pixizujusimomegovupow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427785/normal_6034d56663fc9.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/literal_inferential_and_critical_comprehension_reading.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453134/normal_60208e1b58f85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451045/normal_5ff3c4ebbdf86.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dataluwemijelo.epizy.com/problemas_sociales_en_mxico_2018.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_off00010795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10795 5360 bytes
SHA-256: 97ef8c26b8133df6eb05ac3089743279f0282418238642400ee24addd6639118
font_01_sfnt_off000119b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119B1 12036 bytes
SHA-256: bc5c2f770341029e62450348af7124e8078b488ea1b7137b193f2d81c6a73530

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