Malicious PDF — malware analysis report

Static analysis result for SHA-256 c305d82b4b8ff22d…

MALICIOUS

PDF

174.5 KB Created: 2020-12-07 01:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d131c4c3fd87dab41c67c52e598aac4f SHA-1: 552708efa4d0e55792d4b4e63b933c3375947f77 SHA-256: c305d82b4b8ff22df9a9a53243476be35ffab0e2fce30a08ba742400f54dedba
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://trafftec.ru/123?utm_term=miss+dior+cherie+perfume` is suspicious and likely serves as a lure for phishing or to download a secondary payload. The document body, though heavily obfuscated, contains references to 'Miss dior cherie perfume' and authoring application details, suggesting a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://trafftec.ru/123?utm_term=miss+dior+cherie+perfume
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nokiva/6964183154.pdf
    • https://s3.amazonaws.com/buxoparadazegu/ntpc_reasoning_book_in_hindi.pdf
    • https://static1.squarespace.com/static/5fbfb2312cf09257bd651d14/t/5fc0ed921972c46e3cc036bf/1606479253594/94250406418.pdf
    • https://static1.squarespace.com/static/5fc0028ac14dfd36feec75cc/t/5fc2b4f04f98375720386c56/1606595827691/unforgiven_2_tab.pdf
    • https://static1.squarespace.com/static/5fc382c93398ff75153e5d72/t/5fcd6b57a87f9f1b19ed5ba6/1607297879549/splendora_weather_hourly.pdf
    • https://uploads.strikinglycdn.com/files/c2558802-f5dc-45f7-a8e7-e52aac37e82d/beta_club_requirements_high_school.pdf
    • https://static1.squarespace.com/static/5fc0e2b72bbd740658066ec4/t/5fc15eb8f81c9a2a0cd56c0c/1606508216687/83709021504.pdf
    • https://s3.amazonaws.com/fadedosi/sepufolirij.pdf
    • https://s3.amazonaws.com/pegozegi/website_templates_photography_wedding.pdf
    • https://static1.squarespace.com/static/5fc2d442e9fc3622d52eb2cd/t/5fc5cec14f98375720a83407/1606799046987/bidijelonexafuz.pdf
    • https://uploads.strikinglycdn.com/files/f1ada7c4-0fc4-49a3-b388-434b35820c1f/mordred_king_arthur_movie.pdf
    • https://uploads.strikinglycdn.com/files/7521703d-5424-498a-b47c-0eb4f38dda14/nevetanudisulerog.pdf
    • https://s3.amazonaws.com/wujafivabipo/zutinoga.pdf
    • https://uploads.strikinglycdn.com/files/11eef8d9-6f15-4c25-9a71-9985129b7372/34351775371.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000259b2.bin
4fb4f21b88ac3a1c4ca304dd871d0d69f3157ef95b9f5a6913a4b3073be0667b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x259B2 5160 bytes
font_01_sfnt_off00026b27.bin
133030641a7b9c94942cd0335c21b25b81b23a0354ebcfd8780846670c9282e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26B27 13632 bytes
font_02_sfnt_off0002974a.bin
d781c508aaf473e50263a6aabc3f4161b7fa10724c54bb8d35addee38a7f1c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2974A 16164 bytes

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