Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb333707c3f6bc2…

MALICIOUS

PDF

64.0 KB Created: 2021-03-03 06:57:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c0e86d073379cbbf3e2c55182b7d663 SHA-1: a240742b6f55e84bc57c9317da32a1f304e72565 SHA-256: 6cb333707c3f6bc22c9d86eec0aa21d419d703d284d12c59b6042ce906e821d8
94 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to 'vilenefex.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'las medias de los flamencos'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9627

Heuristics 3

  • 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
  • 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://vilenefex.ru/award?keyword=las+medias+de+los+flamencos+preguntas+y+respuestas
    • https://cdn-cms.f-static.net/uploads/4387933/normal_602dea8fc681f.pdf
    • http://merogerofame.66ghz.com/51897657017.pdf
    • https://static.s123-cdn-static.com/uploads/4450158/normal_5ffe23ca91845.pdf
    • https://sifijaxamop.weebly.com/uploads/1/3/4/3/134332722/2527011.pdf
    • http://usacreditcheck.info/16046652762l044x.pdf
    • https://static.s123-cdn-static.com/uploads/4454277/normal_60068fde5612e.pdf
    • https://xuxufagitagagi.weebly.com/uploads/1/3/0/7/130740521/4917419.pdf
    • https://cdn-cms.f-static.net/uploads/4499317/normal_6034355c7e38d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xasives.rf.gd/reading_comprehension_worksheets_8th_grade.pdf
    • http://melamepapate.rf.gd/when_was_the_first_day_of_school_in_2018.pdf
    • http://potufepevumu.rf.gd/34608002858.pdf
    • http://simupudakeg.rf.gd/can_alexa_control_bose_soundbar.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb49.bin
f8055c44bd01a987484268723e347c7d1d876a94a631352bf54a622934407e47
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 5516 bytes