Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c86fbae0739cf6…

MALICIOUS

PDF

79.5 KB Created: 2021-03-03 03:33:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 7c9a6e466b73eb00c24f3c6378c5d2f8 SHA-1: 1119b21e062feef60465a76f8d51bd6f6a5590d8 SHA-256: e5c86fbae0739cf6fc3a431894d2004c07aa270b590f34a3daf63e44cab05d30
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 0.9998

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://maypoin.ru/123?utm_term=ways+of+the+world+a+brief+global+history+with+sources+pdf+free PDF link annotation
    • https://jaxizunup.weebly.com/uploads/1/3/4/8/134885867/xibowixomi_jokunal_tuvikube_jopew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489042/normal_6013ca1535d21.pdfIn PDF document text
    • https://lulofaki.weebly.com/uploads/1/3/1/4/131453598/nerom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472484/normal_5fca8d9f562b2.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/zemagakojuzage.pdfIn PDF document text
    • https://vonufire.weebly.com/uploads/1/3/4/5/134596457/xuvize-wopipenemef-wolulijinaroz.pdfIn PDF document text
    • https://giliruba.weebly.com/uploads/1/3/1/4/131483170/gunetulus_kufexaxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475389/normal_5fe05da929c46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365536/normal_5ff2039a55074.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/rowumodilowxiah.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/vosadi.pdfIn PDF document text
    • http://whysmall.space/japanese_american_porns7wpm.pdfIn PDF document text
    • http://kokolonesafu.getenjoyment.net/cuisinart_automatic_grind_and_brew_thermal_troubleshooting.pdfIn PDF document text
    • http://tells.fun/2021_toyota_camry_xse_for_sale_near_mezsu5o.pdfIn PDF document text
    • http://pinegrvuig.fun/9970611735686abb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446147/normal_603d2d07a6a87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387562/normal_603976b4d7ad0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501810/normal_602f74ef58131.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501980/normal_5ffbd8c799f20.pdfIn PDF document text
    • https://waperimawomexav.weebly.com/uploads/1/3/4/7/134733778/pumoditat-pisewo-jofeb-mufitufazile.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f69f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69F 5764 bytes
SHA-256: 55dcf6556726f82752cc2107cc4438461c52449d7a8cb5944f6bb27392b4bfe0
font_01_sfnt_off00010a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5C 11036 bytes
SHA-256: 01bc02e6d73297d45d8db8559e139af103d476a04e68d7bb9e8ece097ab0ff86

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