Malicious PDF — malware analysis report

Static analysis result for SHA-256 730383e6c3df9e88…

MALICIOUS

PDF

92.9 KB Created: 2020-11-19 22:10:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: b2be5c08565c73fb1d859de5b927fea6 SHA-1: dc9a9bb7ecb3eb42b7b69b50e3174e8c3d5e39b8 SHA-256: 730383e6c3df9e88d967192668fb28a83891bdb16c07e94b92701d8d4be0c374
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 suspicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by masquerading as legitimate content to drive them to a malicious site.

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
  • 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://traffnew.ru/strik?utm_term=a+very+potter+musical+script PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408720/normal_5fb5f1b9316ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373997/normal_5f935931369f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378843/normal_5f90dfd0b87f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412584/normal_5fa126c29d012.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373239/normal_5f9158ae234e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_5f9576baaa6a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5f8e9d6e4b866.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386852/normal_5fa0625b7f1d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/probability_density_function_table.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/67659966895.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/riverside_high_school.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/94807533014.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/itunes_gift_card_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/animal_cell_coloring_answer_key.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_off00013126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13126 5228 bytes
SHA-256: 94ffed4312eb03d395b1a6cab490c84673c296ceaf60e9b00676b36a24705de1
font_01_sfnt_off000142e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142E6 10512 bytes
SHA-256: 8b7f2275bea749ce28be756ecabc56101da902cc04e469c7334bace9ca966c9f

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