Malicious PDF — malware analysis report

Static analysis result for SHA-256 18dbb1bfb0fc7828…

MALICIOUS

PDF

66.0 KB Created: 2021-03-14 00:16:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: dda752ee947d442ad0ec3ec3dbcbb70b SHA-1: be62accd47dd7e7534b23183dc8ae789404f5ce7 SHA-256: 18dbb1bfb0fc7828509bae71ed67f6bac11b494f3171b15bc3a56bbc6ede6961
96 Risk Score

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-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://jumiwimov.ru/wix?keyword=section+2.1+what+is+matter+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/vunebegawiwa/hAjjgdb/face_changer_online_video.pdfIn PDF document text
    • https://cdn.sqhk.co/pimabosi/hesggAi/63456210622.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/hbgjeNB/kigilojaluzukupofiwuzakib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393180/normal_601ab78d346da.pdfIn PDF document text
    • http://gegapaxibu.22web.org/descargar_facebook_dating_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fuguwaso/kZjiL97/litumigufex.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/XjenjaX/capsule_pharmacy_locations.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/igH8jjx/working_days_calendar_2019_canada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404310/normal_6036faef44452.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvopone/hjVibtD/napusurofovokoma.pdfIn PDF document text
    • http://detodefinedex.22web.org/kemuxakitupaxidaxak.pdfIn PDF document text
    • https://cdn.sqhk.co/tutogalubete/ghgcwjj/xojimuxil.pdfIn PDF document text
    • https://cdn.sqhk.co/modesinilofe/tBRmphj/shark_live_wallpaper_ipad.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/Qheoig5/vexawuvamakugiguluf.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/X8Sjajg/smash_season_2_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jinegudizoropi.rf.gd/58503066974.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_off0000c595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC595 5480 bytes
SHA-256: 9cd8726fdcbd8dcafc4551d0fdacf844635e0cdcec4baf649bf8667083caa3c7
font_01_sfnt_off0000d830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD830 10200 bytes
SHA-256: 1d7d7a12e8beadac868ca90836353e4012cca2ad57b103c9e3bc620eef8d40e8