Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57127342f41ec8c…

MALICIOUS

PDF

72.7 KB Created: 2021-01-08 03:48:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 239198d3b4ae9043dba75b08be548053 SHA-1: e891160223a94c69d27c7e031b85a92b3bf08364 SHA-256: d57127342f41ec8c4e20c319de132ae8e7def97b4c945231b7f2f3bff3f47231
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/123?utm_term=belle+yellow+dress+beauty+and+the+beast'. This indicates the document's primary purpose is to lure the user to this external site. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via the redirector.

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://traffmen.ru/123?utm_term=belle+yellow+dress+beauty+and+the+beast In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jinabom/interpreting_data_year_3_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/770ce441-64a3-43a6-b4bf-b4b6784107ea/the_best_movie_list_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/aws_lambda_layer_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/17595824384.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/server_bedwars_hypixel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04c9046d-d58d-4277-9983-0c4e8e779498/49529592952.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/22368195921.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/good_documentation_practices_fda_guidance.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/48554603569.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/gelman_bayesian_data_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/home_budget_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/vefetipali.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/lolaxanaburilako.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_off0000e02f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE02F 5296 bytes
SHA-256: 34724910308d28c55e8aec3263d3a5299e3762ead8f166e44347f8c649aff4a1
font_01_sfnt_off0000f23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23F 10576 bytes
SHA-256: bfe785d68aef0a6a0e32090a9ba89f9dab879df93bc9fb0f92b1b5a5c723da39

Open this report in the interactive analyzer, or submit your own file for analysis.