Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be7df49cdcf4af5…

MALICIOUS

PDF

75.7 KB Created: 2020-12-22 09:51:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 86f2202b35287d1a79334624ce3ae19c SHA-1: 2aee6513abcde3c3b98fefa3ea8588a0b710e13b SHA-256: 2be7df49cdcf4af5671c001947b615306f530cb6f54821288d6a241852091838
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result, likely to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffine.ru/strik?utm_term=italian+sandwich+spot+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4394066/normal_5f96382be310e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420761/normal_5faa12534078d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417983/normal_5fb50823572a2.pdfIn PDF document text
    • https://lakalenavis.weebly.com/uploads/1/3/4/3/134313358/givij.pdfIn PDF document text
    • https://jaxedafotonomut.weebly.com/uploads/1/3/4/8/134885779/b19b330.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/simujix/33735138190.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/the_official_comptia_casp_study_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc662012cf09257bd90dd25/t/5fca02739c93c058c489a0dd/1607074420180/verizon_roadside_assistance.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/91831766894.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6a9bf104edf1d77a96fef/t/5fd16781c10336458b2a62f7/1607559043903/9358471405.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE21 5132 bytes
SHA-256: cedd87e28aaf91828042ba4663a2459efeb63fc725d0e759f72a49d377e33dab
font_01_sfnt_off0000ef5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5F 10880 bytes
SHA-256: 8b75639e0f13fdd01dc821fb010c8915457d1af3dbed272fcdc802f9ae4fa187
font_02_sfnt_off0001142d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1142D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3