Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c06b880040c6f59…

MALICIOUS

PDF

50.3 KB Created: 2021-04-01 06:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf28eb372f38b4794e84057232723735 SHA-1: 80a3292608b65380d00f2a7142e17ed483e4763c SHA-256: 5c06b880040c6f59b1187109adf210b9489b04b1ead172519de0689323a5785d
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a phishing lure. The PDF contains an embedded URI pointing to 'jottigo.ru', which is likely the destination for the phishing attempt or malware download. The document body is heavily obfuscated and appears to be a screenshot, further supporting the lure tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9372

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://jottigo.ru/award?keyword=different+cycles+in+thermodynamics+pdf
    • https://cdn-cms.f-static.net/uploads/4417140/normal_6053a7bd49fcb.pdf
    • http://mekujoviwe.mypressonline.com/87595205591.pdf
    • http://pumaguli.scienceontheweb.net/is_a_water_flosser_better_than_interdental_brushes.pdf
    • https://cdn-cms.f-static.net/uploads/4455390/normal_60624abdb6a5c.pdf
    • https://cdn-cms.f-static.net/uploads/4367305/normal_603346896a030.pdf
    • https://cdn-cms.f-static.net/uploads/4369323/normal_605b76a38aa86.pdf
    • https://static.s123-cdn-static.com/uploads/4388041/normal_600279b3ada58.pdf
    • https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_a3e52a31f9274ee1a7a958be188ee336.pdf?index=true
    • https://s3.amazonaws.com/tutasujal/sogas.pdf
    • https://baad1762-ad72-434c-be9a-9de7d8068d01.filesusr.com/ugd/61395f_4ac94ef83da94d77a20aebde5de1dfd8.pdf?index=true
    • https://229c3593-bb94-4e5d-9b9f-ca3747df48ef.filesusr.com/ugd/145364_7c8bdf72e9d846e3b20e8982c36ce989.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6ec1bba2-5e8e-4ed1-ada6-72768368eee7/89291466563.pdf
    • https://uploads.strikinglycdn.com/files/b11b1b21-e897-48e4-8b1b-4f191e1fd8be/82269702912.pdf
    • https://901c4554-6fda-40bf-8344-1f1538f5dc06.filesusr.com/ugd/a76634_5ca6a2aa41894b7fb501074f57ae1296.pdf?index=true
    • http://kebenubes.onlinewebshop.net/86790426108.pdf
    • https://s3.amazonaws.com/tozaduliwubega/catching_fire_book_review.pdf
    • https://uploads.strikinglycdn.com/files/4d75deff-3e7c-45b2-b5e7-739da75a64b8/72538124811.pdf
    • https://uploads.strikinglycdn.com/files/9c1e5f37-16e0-4a1d-92d1-7e38bf9479de/jefegaruwaragexodufumawex.pdf
    • https://uploads.strikinglycdn.com/files/155803a0-736b-4def-938e-4246a07af6c9/riwodopejinanasu.pdf
    • https://8e75e8be-0f37-480b-85ac-641553c1acf9.filesusr.com/ugd/a4a1ce_bef8d230d180452db7d7a04ffe89f150.pdf?index=true
    • https://8d5bcf17-53f2-4f21-b585-7a27aef14131.filesusr.com/ugd/7baf93_b0daf23bff0b4fa49de4e0cdf04ec6ae.pdf?index=true

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