Malicious PDF — malware analysis report

Static analysis result for SHA-256 e025763a7d31c38d…

MALICIOUS

PDF

107.4 KB Created: 2020-12-20 15:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: aa23a792bbc6c0d1007ffea94b52a5f6 SHA-1: 11c03b220bb0c2fdd70c74a7c9b3a79fbf7411ef SHA-256: e025763a7d31c38db7e41912562311e5a089864bf600bd9056e5f79f097f6215
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious URL, which is likely used to download a secondary payload. The document body, though heavily obfuscated, suggests a lure related to a screenplay, consistent with phishing or malware distribution tactics.

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://traffnew.ru/strik?utm_term=boogie+nights+screenplay+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5f9dd4165c33c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447086/normal_5fcd096e68fe2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473645/normal_5fa5dc38be40b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371508/normal_5f8ce88d1790c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486346/normal_5faf2805e8745.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373522/normal_5fd7bcfe8055f.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/c0e58196-042b-4c99-ba5e-2186c30f7c32/32877792540.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2902d1452f90b7fefcf7d/t/5fc4cecfcb3e0f5771e6cf48/1606733519394/not_yo_mamas_banana_pudding_printable_recipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa630fd6-c002-4a28-baac-657bbcba91d0/8_keys_of_excellence_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a345aa1c-87cf-4e04-bd43-01b8b7d7dfce/fifinubupafamusitawejozop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/924cf578-8f61-42b1-9d4c-a66bcfe5c646/45613441908.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_off000165cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x165CF 5568 bytes
SHA-256: 08a8484600fc0e0e9e2ec8b6d612bc26ed8fa6ad60a2d967b6866610714dae8e
font_01_sfnt_off000178cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178CC 11824 bytes
SHA-256: c4f74d5f50a880aabd8f49197de04e5dc1baaf856e3a3d2a9b558b51d67b135e