Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e423ff45337a6bd…

MALICIOUS

PDF

103.8 KB Created: 2020-12-31 16:08:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: c474dd2ece679336e3c295c54bc9a0b9 SHA-1: d0a0ab7b5f965f3df915536bdce47ead7ce31930 SHA-256: 5e423ff45337a6bd9969ed2667e85ffb0dd48a18c0989cb8bcb8b746ea10b1b7
136 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains text related to the declaration of independence and the wkhtmltopdf application, suggesting a lure. The presence of an external URI pointing to 'traffset.ru' further supports a phishing or credential harvesting attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=first+sentence+of+the+declaration+of+independence PDF link annotation
    • https://cdn.sqhk.co/joraxeneli/iiMijig/58571868067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489843/normal_5fd92a5bb7e3b.pdfIn PDF document text
    • https://cdn.sqhk.co/jememobak/anibjdk/fojugiminegoxet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392660/normal_5fe152f53f6d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455876/normal_5fddd9048a62e.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/geNBwjf/zunemipesekuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460946/normal_5fce001290ca5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388280/normal_5f92305a0b6e2.pdfIn PDF document text
    • https://cdn.sqhk.co/kupulifip/U5QAW53/gowesani.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/zupenafud/tujosegipi.pdfIn PDF document text
    • https://s3.amazonaws.com/damevusom/mckamy_middle_school_football.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/undertale_text_box_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/34221591286.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/90016281978.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/analytics_meaning.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_off00015b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B1C 5196 bytes
SHA-256: e48ca9719a37d91c5b05f19a107f7409ea1f8a95e8c90eac670ce2e9f9526c30
font_01_sfnt_off00016cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16CCA 10848 bytes
SHA-256: a18d8369f2ffe18d40d2beab918ac5cb3b6d70c7391b1f6d96a13ccdad2212f3

Open this report in the interactive analyzer, or submit your own file for analysis.