Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b9aee665224b604…

MALICIOUS

PDF

338.6 KB Created: 2021-01-17 11:22:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 9c7ffe3c41f0fa5bfe08ac663aaafd61 SHA-1: 7212af88c3c0f124d72134ac76b02200e8e8ef36 SHA-256: 3b9aee665224b604f3fa72ad2e9081c04c313fb1eb8b7c2471240430e811a3dd
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URL pointing to a phishing domain. ClamAV detection and ML classification indicate malicious intent, specifically phishing. The document body, though heavily obfuscated, appears to be a lure related to financial information, further supporting the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8986

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?utm_term=invesco+perpetual+uk+smaller+companies+factsheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373986/normal_5fbf11573b0c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409425/normal_5fab9f96d7d75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414334/normal_5fe6540dadc1a.pdfIn PDF document text
    • https://cdn.sqhk.co/tajelezoja/iMjhgeC/ball_holen_hausfriedensbruch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469116/normal_5fd1c46cd422f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_5fb2f51830bf3.pdfIn PDF document text
    • https://cdn.sqhk.co/zurosewe/3gc6ibC/52119347165.pdfIn PDF document text
    • https://cdn.sqhk.co/fosojatesog/IsWih6N/finally_ants.pdfIn PDF document text
    • http://gijutudubesakuz.iblogger.org/spongebob_boi_meme_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368770/normal_5fe400b962fe0.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/gjijbTw/1343374821.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368736/normal_5f8a8cab1187f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412161/normal_5f9a72bd14201.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/ihahjAK/63362998666.pdfIn PDF document text
    • http://zewixezix.epizy.com/31092366661.pdfIn PDF document text
    • http://susesibukof.epizy.com/dress_pattern_making_books.pdfIn PDF document text
    • http://vamivesuger.epizy.com/wewirudodus.pdfIn PDF document text
    • http://favekagopu.epizy.com/17969154703.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53C34 3924 bytes
SHA-256: 85308601d9135454910240bfdad8817e0ac2e5307433be786283c1d5dad4462d

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