Malicious PDF — malware analysis report

Static analysis result for SHA-256 020ed066c763c255…

MALICIOUS

PDF

69.8 KB Created: 2020-12-27 15:40:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 41b5922c9edae887710ec5197ae5d8d1 SHA-1: db16954e748c3bf0488d97583ce20b78831a97ed SHA-256: 020ed066c763c255b8ba55e899e4fb01521516d6012a8c02044f88f7594cbc85
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a malicious redirector link disguised as an offer for online slots. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL points to known malicious infrastructure, likely serving as a lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://cctraff.ru/strik?utm_term=online+slots+free+bonus+no+deposit+uk In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bifamomove/tamil_new_movies_free_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/suzulivibogikejemasotozul.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/halo_reach_laso_solo_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25a87d4d-c127-4713-a1a1-b4ac1972dd65/redcon1_total_war_ingredients.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/solving_linear_systems_by_graphing_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cc8307b-920d-4bbd-9113-4e23ff5b7a57/dueitt_middle_school_phone_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ecb4b0c-2cb0-47e1-b391-38aced8c79aa/jonefemenugivep.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/biruzufi.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/xezafut.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/darkness_rises_guide_wizard.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_off0000d75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75C 5056 bytes
SHA-256: 14a7a1cfe7744757a495caf118c35df5330a063ab1e844d01246322ed8bd765c
font_01_sfnt_off0000e899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE899 9924 bytes
SHA-256: f689a0de2e581b6c426ef3f1b0e5e0543833db31d11d5fb1f35e1ac0ce4d3a54

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