Malicious PDF — malware analysis report

Static analysis result for SHA-256 daae5aefd458daed…

MALICIOUS

PDF

71.9 KB Created: 2021-02-17 00:23:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 06ec8ffe639ba1d7518271598f6de727 SHA-1: 573ec7ddcf946b90a808cd91a9943a3cb4ec9488 SHA-256: daae5aefd458daedafa68b527971871ff3ead950eb8c979577171bb74a16d6fc
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 0.9997

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://maypoin.ru/123?utm_term=night+owl+dvr+factory+password PDF link annotation
    • https://cdn.sqhk.co/vujenibolo/jbPU0ib/whatsapp_business_api_twilio.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471959/normal_602024ef846b3.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/gujutavevive/buwopigu.pdfIn PDF document text
    • http://vipotunopadilez.rf.gd/tezunikiluw.pdfIn PDF document text
    • http://jipipazed.epizy.com/4780809293.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/dbi_metformina_500_precio.pdfIn PDF document text
    • http://mirivukavezigo.epizy.com/biogenesis_y_abiogenesis.pdfIn PDF document text
    • http://jebefufodapiwi.epizy.com/arjun_patiala_2019_full_hd_movie.pdfIn PDF document text
    • http://dakunexafabeve.epizy.com/the_hitchhiker_short_story_questions_and_answers.pdfIn PDF document text
    • http://vipukexevuwe.epizy.com/63581065615.pdfIn PDF document text
    • http://sobakijej.rf.gd/jematoze.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/wurolokumegojegonuxoge.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/answer_of_how_are_you_going.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_off0000da3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3A 5640 bytes
SHA-256: cf617aec12bf4bf984870cd41e0bb65d8e0b6461e39b2b049076065473a0257f
font_01_sfnt_off0000ed8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8B 10988 bytes
SHA-256: 23215a903475e0c859b20bf72890d7f2ceb57e7ec4a45db7d3aee68204384f96

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