Malicious PDF — malware analysis report

Static analysis result for SHA-256 758b20e40abca1a3…

MALICIOUS

PDF

58.6 KB Created: 2021-03-01 21:11:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6949432ccbad9af48c45c86e4a0adef4 SHA-1: fe3808aec3ca35cc57713d3debe367faea984167 SHA-256: 758b20e40abca1a31b9da92b021c6c9bbd598981282d800dddbf8fc59aeb7bc9
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URL pointing to a malicious domain. ClamAV detected this file as Pdf.Phishing.Trojan, and a machine learning classifier also flagged it as malicious. The document body, though heavily obfuscated, appears to be a lure related to firearm accessories, directing users to the suspicious URL for more information. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5641

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://dafemum.ru/award?keyword=marlin+336+dark+series+accessories PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4455884/normal_5fe56ddae8ef7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5ff88c4ab707e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_602e62340dd06.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/niv_bible_gateway.pdfIn PDF document text
    • http://detonicufficiale.website/venuvajevur3tnb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381976/normal_6004e89359a63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450747/normal_5fec4808b7671.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446633/normal_600129f198d56.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/the_unbearable_lightness_of_being_subtitulos_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/fortnite_season_8_week_7_challenges_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/competitions_guide_australia_reviews.pdfIn PDF document text

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