Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb40e5808ceeeb6…

MALICIOUS

PDF

77.2 KB Created: 2021-04-23 09:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 57ea6c7ab7d6cb73a63401af67e1807f SHA-1: 81143414584fecc254a4dc64751cf0a5947d799a SHA-256: 9cb40e5808ceeeb6d8e51a41b6549c735f6c939b8a78b55cb86618e9f1f63cc9
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://baarspo.ru/strik?utm_term=what+is+a+good+bass+guitar+for+beginners PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368972/normal_5fcd547fb758d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476437/normal_60443df179ea3.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415768/normal_5ff58f28daea1.pdfIn PDF document text
    • http://jafalule.22web.org/journey_2050_worksheet_answers.pdfIn PDF document text
    • http://getporte.xyz/cisco_cli_commands_listxtaui.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383321/normal_603a418fd08df.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/bagokiko/51892158788.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/sqlite_insert_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/what_are_the_main_forms_of_poetry.pdfIn PDF document text
    • http://jojexapopexevof.epizy.com/13056466265.pdfIn PDF document text
    • http://joluvolob.epizy.com/how_to_fix_a_dometic_fridge.pdfIn PDF document text
    • http://sizurixujiboxen.rf.gd/24529188918.pdfIn PDF document text
    • http://zofetabekuvodan.epizy.com/92629729.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/sisaxiku.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/fuzuxemawirudo.pdfIn PDF document text
    • http://sonopuzogex.rf.gd/46918315216.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/weketa.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/essential_further_mathematics_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/nidarafanuzateterogimu.pdfIn PDF document text
    • http://vafowoloxesimam.rf.gd/cattell_culture_fair_test.pdfIn PDF document text
    • http://wigifanike.epizy.com/suzope.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_off0000ee05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE05 5292 bytes
SHA-256: e3868b52b1ca035a78b08db430ba9bac3cda55ff596ab856c3b0996c7fe80d5e
font_01_sfnt_off00010007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10007 10976 bytes
SHA-256: 92723af2026ba63a5f1de653f81497f12965a6ad72f95b042da7901ecc244b2f

Open this report in the interactive analyzer, or submit your own file for analysis.