Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d82dea703c7379f…

MALICIOUS

PDF

70.0 KB Created: 2021-02-12 10:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: fac020c6000ea31f52cbbd76a561fdbe SHA-1: 8c0b65fd556cd446fdb8f06f8512d8588851b0ac SHA-256: 6d82dea703c7379f0d385206b30485e49be7de0d46b38bc896f365a7c6e52a4b
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious URL, likely intended to deliver a phishing lure or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by directing them to a potentially harmful website.

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://jottigo.ru/123?utm_term=simpsons+tapped+out+cheats+unlimited+donuts+iphone PDF link annotation
    • https://cdn.sqhk.co/xawobovuji/hfMyhgz/busagobebotimosuxew.pdfIn PDF document text
    • https://kodopexo.weebly.com/uploads/1/3/4/6/134693050/2906702.pdfIn PDF document text
    • https://cdn.sqhk.co/segevenujuka/mggehje/kingfisher_forest_positive.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/pLhfjid/40025076344.pdfIn PDF document text
    • https://kekugijofer.weebly.com/uploads/1/3/5/3/135321092/1936197.pdfIn PDF document text
    • https://lepifokofufup.weebly.com/uploads/1/3/4/0/134018260/pogomibetejojenofu.pdfIn PDF document text
    • http://godisibipuvam.22web.org/crate_and_barrel_kids_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/rifidUz/brain_over_tricky_puzzles_online.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/zufaxepixiguxax/sizarinudakasusa.pdfIn PDF document text
    • http://karifopiti.epizy.com/56007354838.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/free_florida_learners_permit_test_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/interview_questions_and_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/devops_interview_questions_and_answers_quora.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_off0000d5a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A6 5320 bytes
SHA-256: 9d9f4abc57cbc8b72532e306bc757b83f0f83875783f06f34d33349dd1cd00eb
font_01_sfnt_off0000e793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE793 10292 bytes
SHA-256: 31dcc9b1ebc6c8fe47b394ef3955626ef950fca9ac0d4a01398ec8c14bbb5be3

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