Malicious PDF — malware analysis report

Static analysis result for SHA-256 692df45abbcae4ab…

MALICIOUS

PDF

71.5 KB Created: 2020-12-06 23:59:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cccfd273b018ff597c306b45bd8fc139 SHA-1: 1e45b7593c519d9a129f0f2cdc28ab2f4fef4952 SHA-256: 692df45abbcae4abeb379699b3aeed1c9c39d57cc13ce3cae32671c1dc6178b0
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV and an ML classifier as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a deceptive intent related to 'problematic perspectives'. No scripts were extracted, but the presence of external URLs and the malware classification strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/123?utm_term=what+is+problematic+perspectives PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f9b0b9ade4d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370777/normal_5fbb4c491b022.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375209/normal_5fc71760daeb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379377/normal_5f96e8f90bb49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387408/normal_5f9809cb8b84b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc652bba3bf4b14abce1555/t/5fc991f18d0ac92c7bdb2734/1607045620415/roblox_toys_series_6_items.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc066bd9955c744b5390948/t/5fcb336a36758319a54f2650/1607152491499/25104089866.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbceea773299f0c54387f32/1606217383479/zudevonubivavupi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/062832fc-6331-46ff-aa34-c3985f8a1381/59031596285.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf69164f98375720d899a8/1606379798879/minecraft_superflat_seeds_with_villages.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1e1d18e72e5fdb9faf46/1606295070890/taroviseme.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d8138ef7301f8b2a384c/t/5fc9803d4e3f3d2517319f87/1607041085745/dunkin_donuts_drift_caramel_macchiato.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc016b9c30a162e0c4e17a3/t/5fc0e97818e72e5fdbf8a8eb/1606478203261/lekopigek.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_off0000da34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA34 5388 bytes
SHA-256: 1e9487f870b9b3a9567703913de22d4b556513942a80848cf3b57e96a45ebfab
font_01_sfnt_off0000ec65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC65 10672 bytes
SHA-256: fc67bafbc86a23f5b19d82e051b8a92db119767acbb3af2d672dbe9202257c43

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