Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e93671935c9daff…

MALICIOUS

PDF

72.7 KB Created: 2021-03-01 21:31:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: e88762bd6bb513ca8738287c0d80d326 SHA-1: 1e23fe485b77984beb1d372d9d4acd71f9c5c502 SHA-256: 2e93671935c9daff0bcedaf1c66715d481f4f9f0bbb13f8521c88b66b3883aa0
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the nature of the PDF content suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/award?keyword=2010+chevy+malibu+led+tail+lights PDF link annotation
    • http://stat-index-co.com/dupigaxir2gilm.pdfIn PDF document text
    • http://cesaregaspari.com/logical_fallacies_practice_quiz_answersm1msb.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/QgdIrwY/tofakizo.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/vhajegh/alien_shooter_3_free_download_for_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/zarepowake/Jrjjhbq/fuvanomesiwipasabubuzuf.pdfIn PDF document text
    • http://limons.space/447564597302tgo3.pdfIn PDF document text
    • https://cdn.sqhk.co/fadejiweruw/hQuieUN/las_vegas_santa_run_2019_cost.pdfIn PDF document text
    • http://zootime.store/78919587615uwuk9.pdfIn PDF document text
    • http://waferaboteb.mypressonline.com/motivational_interviewing_techniques_videos.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xogegusubo.rf.gd/poxanejep.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/nefogigularudud.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/hollywood_reporter_subscriber_services.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/51883248405.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/los_pasos_perdidos_alejo_carpentier.pdfIn PDF document text
    • http://mowigefugitixa.epizy.com/combination_and_permutation_problems_with_answers.pdfIn PDF document text
    • http://dizakopalelur.epizy.com/character_description_worksheet_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/duzineregusimemewanu.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/20454218084.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/42224014737.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_off0000dc74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC74 5788 bytes
SHA-256: 9df9db226bd0f78d49873e779677c76716dd787dc3289d38380a6a9b9494701d
font_01_sfnt_off0000f015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF015 10896 bytes
SHA-256: a06c941c3e2f5fa98c8a0278638769105fadb3be5fb2fe1398149c2f28ad1c54

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