Malicious PDF — malware analysis report

Static analysis result for SHA-256 d54b6abcc8fcad59…

MALICIOUS

PDF

58.6 KB Created: 2021-03-28 15:39:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e2bd9dca88cfb2a64b27a772b1547083 SHA-1: 68d02336fa7171c5302efcad92c41cc3ce17ad08 SHA-256: d54b6abcc8fcad5917c8c03f073288a22e98174b0f3fa722b449afc425f3d22c
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-only content, typical of a screenshot designed to hide clickable links. The embedded URL, https://crophysi.ru/award?keyword=samsung+mobile+warranty+card+pdf, strongly suggests a phishing attempt related to warranty information. ClamAV and ML classifiers also flagged this file as malicious, reinforcing the phishing and potential trojan delivery assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6893

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
  • 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 58 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://crophysi.ru/award?keyword=samsung+mobile+warranty+card+pdf
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    • http://easylearning.space/werumadekatokugabode5nxq7.pdf
    • https://figokafudifugi.weebly.com/uploads/1/3/1/3/131383964/rawuleloworofe.pdf
    • https://cdn-cms.f-static.net/uploads/4478961/normal_60195e3473a54.pdf
    • https://cdn-cms.f-static.net/uploads/4482189/normal_605957c514a90.pdf
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    • http://digitalliteracyinstitute.com/tifa_fell_how_to_get_back_upt0veu.pdf
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    • https://giruveme.weebly.com/uploads/1/3/4/4/134480937/3242973.pdf
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    • https://wilewefat.weebly.com/uploads/1/3/4/2/134234777/jopido_zokikoluwi_vanomem.pdf
    • https://d23eb412-52e1-45ef-a32a-0c032022daee.filesusr.com/ugd/03485a_2454d906e80447929f37fb5837b6abc0.pdf?index=true
    • https://5e9c932d-19a8-4d5a-a970-d4bc0bcb832b.filesusr.com/ugd/bae0a0_da6610175b8a4cb2841d53b3af884644.pdf?index=true
    • https://s3.amazonaws.com/jonora/83984248774.pdf
    • http://wilosokanik.myartsonline.com/ielts_speaking_tips_for_band_7.pdf
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