Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd2e9a015b19033…

MALICIOUS

PDF

68.4 KB Created: 2020-12-17 18:13:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 406d63f5f48d2471482c646429acee57 SHA-1: 1592df9f26217946b88b341bc8ef7602053c6fce SHA-256: 5dd2e9a015b19033963100828e8d5f0dc54d3a1266f2b0caffe33091aceaaf4d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to 'Lamentation of Christ meaning' to entice clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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
  • 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://traffset.ru/123?utm_term=lamentation+of+christ+meaning
    • https://cdn-cms.f-static.net/uploads/4366982/normal_5f9ece52cd13b.pdf
    • https://cdn-cms.f-static.net/uploads/4473642/normal_5fbf61fd8dd49.pdf
    • https://cdn-cms.f-static.net/uploads/4387050/normal_5fd67ceae2457.pdf
    • https://cdn-cms.f-static.net/uploads/4481684/normal_5fd67e424e86f.pdf
    • https://static.s123-cdn-static.com/uploads/4380523/normal_5fc776494a872.pdf
    • https://static.s123-cdn-static.com/uploads/4451544/normal_5fc6b773d5726.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/voxulija/bozepewopal.pdf
    • https://static1.squarespace.com/static/5fc0ba3b0a2757459be1f9cb/t/5fc1a01218e72e5fdb152336/1606524946757/90774045307.pdf
    • https://s3.amazonaws.com/lefemijip/shatavari_medicinal_plant_information.pdf
    • https://uploads.strikinglycdn.com/files/19b9e659-855d-4446-9a8b-2c182d2eff11/ap_psychology_exam_study_guide.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d17c.bin
b465e46a9dbb333994474d39dff24de6cad49208b642a99a24632a7c3eb5780b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD17C 5204 bytes
font_01_sfnt_off0000e30f.bin
57ff3220c54cf397969a5b5f92eaa6d62649c299ef6ca15b0a5c619ada734621		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE30F 10328 bytes

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