Malicious PDF — malware analysis report

Static analysis result for SHA-256 7965748650cb10b5…

MALICIOUS

PDF

72.4 KB Created: 2020-12-15 10:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e859ef772e26fa47b095440b818efa3c SHA-1: b145944e06473f7a72c1159a4c135680a7d34671 SHA-256: 7965748650cb10b51756d0eacd5e898fca4a459dacc21f80eebb6f4239661eca
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://traffking.ru/strik?utm_term=discord+syntax+highlighting+java PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461484/normal_5fad3c08e5b20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420617/normal_5f990cb9cda7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378613/normal_5f99acc4e4854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367019/normal_5f9657d5acd44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_5fd12e173abaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475992/normal_5fc63c02ae1e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5fae00baba70c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406776/normal_5f9687ddf263f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479679/normal_5fbe5de386ce2.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/fadedosi/belmar_apartments_santa_monica_income_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbbbe95d-8e46-4568-80f4-d9d16f2d94e2/guardian_module_blueprint_segment.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/environmental_aspect_impact_assessment_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5510aa13a450bab11af48/t/5fd06164ef76c20f2d47aa14/1607491940986/wonder_pool_paragould_ar.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6980f8787e87989936d8a/t/5fca725bcba3ec75294af763/1607103067679/small_water_slides_for_rent_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/tony_tung_murdered_robert_kanter.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c67e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67E 5508 bytes
SHA-256: 8928036d437655c97342cc6946fbfba75d99816432d701475ca52a147ad57b97
font_01_sfnt_off0000d94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94D 10744 bytes
SHA-256: ec256c89c29449b5679a320bc6f0435f9b56a25ea127a3d9352934388b7c7885
font_02_sfnt_off0000fe87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE87 16368 bytes
SHA-256: 75bbd64fe87cf8fb7a4ce630cdbf1fa4d064521a118b7673c0aa2e1ecee9ee62