Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8f4f96fa1b3cac…

MALICIOUS

PDF

73.7 KB Created: 2020-12-27 03:48:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 84b6337c57f6cb77d7270b746b4817c7 SHA-1: d095cd02fd349b9b2f3c7c7dfb25618bed3635f5 SHA-256: 0e8f4f96fa1b3cac9bb4d8a3bc7ecfcb9591133d1b0da7d2ff1437eb40936d19
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it functions as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://trafffe.ru/aws?utm_term=sejarah+perkembangan+agama+buddha+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414682/normal_5f9bb853908bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416919/normal_5fa714e7d455e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384644/normal_5fa36202538e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416143/normal_5fc149a3c5400.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_5f93279c1e76f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415950/normal_5f999743de398.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451566/normal_5fa33ff920051.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407100/normal_5f9980f64f6ef.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/fakuguvil/entrepreneurship_skills_development.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_off0000e2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B7 5628 bytes
SHA-256: 336521f22831e8c07c3a5bd50800acec998d993256ff2288422967e7031f9714
font_01_sfnt_off0000f5b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B2 11004 bytes
SHA-256: 6f6746c0a9beccb16514461e41713cc24429620a95de6554079e28a91cef333b

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