Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8601c8c25c472b4…

MALICIOUS

PDF

71.1 KB Created: 2020-12-24 10:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 4717487f00455f0ae2058cae2123763e SHA-1: 17946ffad2964e3197e51c2141ba90df3402ebf9 SHA-256: e8601c8c25c472b48e2727e5196d0feb9c19ae614e177cfc0305ac6d5260489f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to 'trafficel.ru', which is flagged as suspicious and associated with a phishing lure related to '4k wallpapers for windows 10 gaming'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a potentially malicious site, likely for phishing or to download further payloads.

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://trafficel.ru/strik?utm_term=4k+wallpapers+for+windows+10+gaming PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4382973/normal_5fc8120f3b6e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477409/normal_5fab03a31f6e7.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/iRJoidR/contract_whist_card_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402289/normal_5fa84d5c46948.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/h7jgidj/galaxy_wolf_wallpapers_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/zifalulog/idhbnjf/zolaxuxafenisakubow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446774/normal_5fade43857da2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410000/normal_5fe3c350bb805.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dd27114-d550-41ce-a8ce-e545e60d3519/wilkerson_funeral_home_greenville_north_carolina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a53b373-fd6d-4c99-ae94-356f00386fb4/73014843925.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aab30e7-2a28-438a-9908-f51281bf5349/the_drama_of_the_gifted_child.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9fe99a1-0bff-4dd3-b849-435f6ffa08a0/68969687932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67ebe40c-b12d-415b-a5fc-f6858c35713f/geben.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/938d1202-a947-4f53-97a4-1461eb73e4a9/19222164807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fb4a3eb-c560-4d86-84d5-e312b89c5505/raising_cain_book.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_off0000d6f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F3 5704 bytes
SHA-256: 6e7b33b1764f6b07af53bca6bb690c63e65d5c99e9e376982e743cdbe9f8b738
font_01_sfnt_off0000ea6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6C 10848 bytes
SHA-256: e85219cb702b123872dabac838fe5056afe08ceb5950b126789bb87cc837e074

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