Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d4b33f996098c1…

MALICIOUS

PDF

72.3 KB Created: 2020-11-19 03:50:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 95767f66a6d62394cf740b2fcdaf93d3 SHA-1: 1b6d91b852833d7ff79c44c3aa447e3c4591a621 SHA-256: f6d4b33f996098c1fdeccc389fe4e1cdd3fff9ed183ed8062b97a010592b74bb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to reference 'Vizio m420nv price', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/strik?utm_term=vizio+m420nv+price PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403680/normal_5f94a28b84310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378406/normal_5f964835ad924.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383922/normal_5f944be8cd2a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427504/normal_5f9a3ca38b58e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482671/normal_5fab01cec963d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476930/normal_5fa5c5ae2ef88.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://s3.amazonaws.com/godoremitiwuja/82941379977.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1f64760-bee0-45c9-a4c1-2dd7c90aa3d8/komite.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/how_to_writing_research_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c90e64c8-0672-431a-9975-e4cfe82028d7/luzisedefap.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/mowowipamevomu.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/super_boot_manager.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/female_pine_cone_diagram.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB58 4804 bytes
SHA-256: 796a144123d2423fcd029647718ced9a85a5993fb7b7a9d5582942c4efaed6f0
font_01_sfnt_off0000cb8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8C 10788 bytes
SHA-256: 0c4effa9efbba56ae2b10fc1d556dd154c41eff8fe2a1635be2d46913eb91df1
font_02_sfnt_off0000f0d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D3 16260 bytes
SHA-256: d25a34a56be33791b66bd7dbe91ee772b39b89bee75ba0e64ef3ea6cb2c10b57
font_03_sfnt_off00010649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10649 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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