Malicious PDF — malware analysis report

Static analysis result for SHA-256 225c18ce7082b63a…

MALICIOUS

PDF

66.4 KB Created: 2020-11-20 12:04:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d5b4ad15d209f5da6927bb195da90f86 SHA-1: 21e28035fa8cebda41c7aaa2e56cb50ab85dea4e SHA-256: 225c18ce7082b63ab390f857fb673b5ef7e1ba6f2ba7d5c6cb21fe14213f51a3
96 Risk Score

Malware Insights

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

The PDF document contains a URL that masquerades as a download for a popular game, likely to trick users into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with phishing or malware distribution.

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://trafffi.ru/strik?utm_term=league+of+legends+torrentle+indir PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427287/normal_5f9ad6b91860e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370051/normal_5f8a1ba84f1c3.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/libeganot/java_head_first_design_patterns.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4ead33-631e-478b-855c-792adbac86e4/89193725636.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/rofizobexofewerosamufetiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63e54821-c86a-4c5f-a278-a3c8f2258616/xixiro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90de4cd3-4e19-439a-93f1-466dd8c7b6e6/52128189718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57086b6a-e6f7-4757-b9d3-bceb3009db97/53823210718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfabb580-1e0b-4ac2-b6bc-aa7260066472/monologue_from_into_the_woods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ee93377-a0f1-41f6-83b9-20d11dc95120/blank_outline_template.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/script_calligraphy_alphabet_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/ancient_lectern_osrs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cf8e047-3793-4e8f-a6fc-a01c8836de9c/escort_passport_8500_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/80756407730.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_off0000c896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC896 5016 bytes
SHA-256: 2ec143b34458faf5ca6c6b8d0b2f7eba60810e47bfaec5c6e277fcf8a2f51031
font_01_sfnt_off0000d9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BB 10336 bytes
SHA-256: 610bd103de4357275f9a7955190e265718a17432cd5cb879b6d6686b51759cfa