Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c698654d45d6a6d…

MALICIOUS

PDF

91.2 KB Created: 2020-11-11 19:01:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 9ef05a76b77662b56c66e16e8e1eb7aa SHA-1: 1cf43dbb568f3df28826d227e838e56519331dbf SHA-256: 2c698654d45d6a6d840f88f25741a1cd70b47f3c904971ed30f4913a8d9f47fe
154 Risk Score

Malware Insights

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

The PDF contains a link to 'traffine.ru' which is flagged as a malicious redirector, likely serving as a lure for phishing or malware. The document body, though heavily obfuscated, contains text related to 'Gucci watch men', suggesting a deceptive lure. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://traffine.ru/123?utm_term=gucci+watch+men In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391302/normal_5f96272578a8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376382/normal_5fa6f6cbc80dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366344/normal_5f9ad4daabf7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f874755ec7a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f900ad92f602.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376852/normal_5f8f9cb32c823.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386824/normal_5fa8d50fb66c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5f8ceeb5c790d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387939/normal_5f94012dbfadc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383921/normal_5f9a99517b16a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/3dedc796-6dee-4f93-8b3c-ad6230441b72/45168716469.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A80 4628 bytes
SHA-256: 322fbb0c4c0b8da0ec59e76d198a0e216ab15231e78a189546aa02ddc6a6f659
font_01_sfnt_off00012a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A28 12468 bytes
SHA-256: fbb1f661415e730e0297bf340cb50a2fac094b457b9a7a942db1030756456976
font_02_sfnt_off00015211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15211 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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