Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab98f57c486e68f…

MALICIOUS

PDF

73.0 KB Created: 2021-02-05 06:43:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 8d4b5e67e4acceca3a016c4866508d00 SHA-1: 4ff9474b1ab2d9a6ce33b75224e48998db86a0e0 SHA-256: fab98f57c486e68ff558eabfd09a638b6f258460fde63e55a5803e5ad8f90de2
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/aws?utm_term=beauty+camera+app++karna+hai PDF link annotation
    • http://italywow.space/303249383941sdfi.pdfIn PDF document text
    • http://gladkoe-telo.xyz/koxinezarufare18py3.pdfIn PDF document text
    • http://world-wild-shop.com/firoviledos6nna.pdfIn PDF document text
    • http://itravelgr.com/tipos_de_descripcion_literaria5uora.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413973/normal_5fcb4bef83907.pdfIn PDF document text
    • http://white-x.fun/list_of_personal_strengths_and_weaknessesc4jf8.pdfIn PDF document text
    • http://reduslim-ordina.site/ccv_tamil_hd_movies360yx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447263/normal_5fdb3a50f127a.pdfIn PDF document text
    • http://gawajix.iblogger.org/tusogezozegupurinuzezepoj.pdfIn PDF document text
    • http://jebumivusesujan.iblogger.org/36878232326.pdfIn PDF document text
    • http://hristogrigorov.com/navien_tankless_water_heater_instruction_manualze911.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448332/normal_6000f8af86235.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/temujonuwu/converse_plataforma_grises_desgastadas.pdfIn PDF document text
    • http://wexugemo.epizy.com/water_bottle_label_template_free_microsoft_word.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/gupubopovu.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/dependent_clauses_sentences_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/birkenstock_arizona_size_guide.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_off0000e208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE208 5180 bytes
SHA-256: ec731eda23ca44effce0017ca91c6c561f78628b8e46a427163ea3a9616997b3
font_01_sfnt_off0000f387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF387 10432 bytes
SHA-256: 49a1fa622b7c146866a0d7e9af8de709b105d096a540e217d3197675367fa55d

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