Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aaeb6e4ee438afb…

MALICIOUS

PDF

77.1 KB Created: 2021-01-17 11:33:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: af34e066f695d754c91bee95946ee077 SHA-1: 52b957410f9f569f6823e542883ad848c83f3701 SHA-256: 2aaeb6e4ee438afb523f57bba18b247aa067e8efb19d01c1e8deaae028406321
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://trafftec.ru/123?utm_term=pathfinder+character+advancement+checklist PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417029/normal_5fe6c0e670b37.pdfIn PDF document text
    • https://site-1177634.mozfiles.com/files/1177634/merewisikul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485005/normal_5fc6c915524a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481424/normal_5ff6abb8b381c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368781/normal_5ff1f43fe49bc.pdfIn PDF document text
    • https://site-1172574.mozfiles.com/files/1172574/world_capitals_and_currency.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529149/normal_5ff909f62d9c0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tisiwiruligeg.epizy.com/fubokupavamitemu.pdfIn PDF document text
    • http://dobejul.epizy.com/archero_mod_gems_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/irregular_plurals_worksheet_1st_grade.pdfIn PDF document text
    • http://rujemivegelap.epizy.com/time_analog_clock_worksheets.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_off0000f01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01C 5384 bytes
SHA-256: 30d458c36c479f3ecbde975e26b8c107596febd71794ee5857440177a3d10b01
font_01_sfnt_off0001024f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024F 10792 bytes
SHA-256: c07b3340b9c7c0a71178d650d4b657fc314c4a89180e3bdc9e4e2b61eb15086a

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