Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c46230892f49f27…

MALICIOUS

PDF

73.4 KB Created: 2021-01-17 12:13:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 6a5e062f2204bb54b401ad3c46f3f624 SHA-1: 8a90e3a9b69b6ac35f05588b0390066bf57405e2 SHA-256: 9c46230892f49f275d4f16fb4e3874c567a0f4697ccd5e6acd5edff6ce954067
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/aws?utm_term=brick+wall+game+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407813/normal_5fef4b9af3c14.pdfIn PDF document text
    • https://site-1171458.mozfiles.com/files/1171458/yoda_dark_side_meme_generator.pdfIn PDF document text
    • https://site-1177918.mozfiles.com/files/1177918/22836753853.pdfIn PDF document text
    • https://site-1172223.mozfiles.com/files/1172223/demibodakegafonakejumof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471683/normal_5ff8a94ed6840.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5fbd29b653a78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480898/normal_5fda5a38b7a2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380681/normal_5fc7f55f54523.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501775/normal_5fdf0e3d1d17e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421778/normal_5ff86bc9f16d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusobudem.epizy.com/56933092897.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/vevisabazusukekelowubasa.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/cuneiform_numbers_worksheet.pdfIn PDF document text
    • http://kojaburu.epizy.com/70619263756.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/coreldraw_terbaru_bagas31.pdfIn PDF document text
    • http://fepadegan.epizy.com/thomson_reuters_via_journal_citation_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/butimidetuzog.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_off0000e401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE401 5228 bytes
SHA-256: 156c080b58a7c7f3a2e26361f1e39fec4c689fa4029f834e1e437e4e85f23bd5
font_01_sfnt_off0000f5d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D3 10184 bytes
SHA-256: f9c04169197e361949e1508f7f4e8066e99512d6562b601987ec1cab1daa1e26

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