Malicious PDF — malware analysis report

Static analysis result for SHA-256 52034ea43beba80b…

MALICIOUS

PDF

76.0 KB Created: 2021-03-04 22:50:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f5bc4c27043d60957ad41be3c4a2be05 SHA-1: 9bcf0063f3bcfe54ed1f5584f8ad5b4a6f39dfae SHA-256: 52034ea43beba80bdc06cde9db47a1705749a33f30ccdca02eec95a8c22c2e05
96 Risk Score

Malware Insights

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

The PDF file contains a URL that, when visited, likely leads to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL points to a domain that appears to be used for malicious purposes, disguised as helpful information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://bologen.ru/strik?utm_term=how+to+reset+haier+refrigerator+temperature PDF link annotation
    • https://cdn.sqhk.co/pesasotiro/ajbjdvi/dragonball_evolution_movie_trailer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469128/normal_600b6ac7e5ec8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418556/normal_5fdf2efadf4b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408195/normal_5fc6d35da9086.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489054/normal_5fcd6c547b4da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417226/normal_60256c626f679.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447084/normal_5fe3d6d6bee13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480736/normal_602a178b882e1.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/vsYjehj/microsoft_azure_certification_exam_registration.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/HrJgchi/touch_math_skip_counting_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/Pghgehb/60548933623.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366327/normal_5ff788649b1c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481058/normal_603314cb131cf.pdfIn PDF document text
    • https://cdn.sqhk.co/jigijobofofa/aOLU3jf/xofigabobidekid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403556/normal_5fce8a2479046.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/busutafitufe/fatikamawopefaliganifoga.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/zilokavajukodomu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6646a063-e1c3-45ae-9248-22f5fc4b038f/xemufitirebulekadugonit.pdfIn PDF document text
    • https://af0fe010-594a-4ec7-a26b-e2d78e33490d.filesusr.com/ugd/7d2910_a366270f9fa9444aa2bf66e7b70ef85d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/63263523912.pdfIn PDF document text
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_fabbe95f78e44cdaa7ef50c4eb305106.pdf?index=trueIn PDF document text
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_7380c00a35124b858ae0eedba4164c0a.pdf?index=trueIn PDF document text
    • https://9fc80a0e-b25b-4135-afeb-9811a1ea6bf8.filesusr.com/ugd/91e123_c0d0e44dd4b94293b436a12e48ca8415.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/duxigumiz.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/26817668519.pdfIn PDF document text
    • https://a86a6b26-b473-4b55-b9aa-7628a2bff077.filesusr.com/ugd/4f270c_13d9341e229849d38af0540967b250b1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5b70bed-5ee3-4552-ad4f-18f91a087922/free_sat_math_2_practice_test.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_off0000eabe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABE 5336 bytes
SHA-256: 8dd7069828e0155861745238aa9a451ebf13c944376d710a0fd942645778c243
font_01_sfnt_off0000fcd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD1 10900 bytes
SHA-256: e8fb2e133de771a8e6fefaaba4ec99c92de24fe381fb580440ea8afda4268499

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