Malicious PDF — malware analysis report

Static analysis result for SHA-256 8830428ac04426d5…

MALICIOUS

PDF

50.6 KB Created: 2020-12-25 19:57:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 509847f3311b36d4bcc594d888b2f7a9 SHA-1: 650781e71e3e1bc808f946ea1fc509a861a2d431 SHA-256: 8830428ac04426d54f96a58578e4708bbae8f5e7ca33e0f2ccb6109468018878
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link. The primary URL, https://trafftec.ru/aws?utm_term=first+grade+printable+math+sheets, is likely used to redirect the user to a malicious site or download a payload. No scripts were extracted, but the PDF structure and heuristic firings strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7414

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://trafftec.ru/aws?utm_term=first+grade+printable+math+sheets
    • https://cdn.sqhk.co/pibegufuxova/NjShghj/96688823023.pdf
    • https://cdn.sqhk.co/gutemokerezo/if1igL2/tie_dye_kit_joann.pdf
    • https://cdn.sqhk.co/joraxeneli/TLjg9o4/pabimiwubanunelixaludejar.pdf
    • https://cdn.sqhk.co/faxenukev/jdjc7GE/14088050906.pdf
    • https://cdn-cms.f-static.net/uploads/4417212/normal_5f9eb7b70593e.pdf
    • https://cdn-cms.f-static.net/uploads/4402711/normal_5f9e33f7c7af6.pdf
    • https://cdn-cms.f-static.net/uploads/4392853/normal_5f9000325e099.pdf
    • https://cdn-cms.f-static.net/uploads/4475985/normal_5fbb77d9275ec.pdf
    • https://s3.amazonaws.com/fusidejebi/ralepuvip.pdf
    • https://s3.amazonaws.com/tadevewuju/apa_format_table_of_contents_template.pdf
    • https://uploads.strikinglycdn.com/files/5204a18b-f23e-402f-b7fe-49a6fe6275f1/carroll_court_reporting_michigan.pdf

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