Malicious PDF — malware analysis report

Static analysis result for SHA-256 13ee7e44e58bedd7…

MALICIOUS

PDF

72.4 KB Created: 2021-02-18 06:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8c87f0d42c28f1cefd6f67936c68b0fa SHA-1: 967f3d988c7371e12cbfe88231ae77ec1fc7638e SHA-256: 13ee7e44e58bedd719a032e199a35dc2e404d0a21716992ddcebc7a05ae54afc
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://crophysi.ru/wix?keyword=tomb+raider+1+android+apk+download+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393624/normal_601b85fd9d0f1.pdfIn PDF document text
    • http://prostosite.site/migifahyh4.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/iijiado/roxaruminomewe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416502/normal_5fd03b3fec842.pdfIn PDF document text
    • http://voicebftyi.com/35527002704y7pa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482407/normal_60177f2474154.pdfIn PDF document text
    • http://myfoxing.online/the_financial_advisers_actnfxkv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463308/normal_5ffcd01e28815.pdfIn PDF document text
    • https://cdn.sqhk.co/tasiteregixo/jfSXY4j/lufusoxizevegikela.pdfIn PDF document text
    • http://tugrull.com/telecharger_harry_potter_1_gratuitemkov1k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446026/normal_5ff808dc1c1ca.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/zevutebulaworel/coronary_angiogram_procedure.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/ensayo_alcoholismo_en_adolescentes.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/95181709742.pdfIn PDF document text
    • http://sefatefa.epizy.com/aperture_photometry_tool_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/stacked_waterfall_chart_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/consolidate_excel_sheets_vba.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_off0000d896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD896 5304 bytes
SHA-256: 292bce139407aa0ed5c7302aaee1b63865ce48216160364cd6ba542e69128d80
font_01_sfnt_off0000eaa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA2 14424 bytes
SHA-256: fdd0cb3bd7aba2c01e9a53fe5829eae73296169b55428341b8331ee2613f93ea