Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ceae9f5aafde242…

MALICIOUS

PDF

88.6 KB Created: 2021-02-26 01:32:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d1d3cb390582296dc574318b7c484e33 SHA-1: e77f3b7aa127af0f2715fd1be3cb419ec1cbd6b5 SHA-256: 2ceae9f5aafde242cbc533d8d901ff4e3702ed98387d654cba523fd91a84c1e9
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a link farm, which is a common tactic for SEO manipulation or directing users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of numerous external URLs suggests an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9458

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=twilight+eclipse+extended+edition+length PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405902/normal_6012095a18974.pdfIn PDF document text
    • http://kartaidatodemeleri.com/518818910828w6bg.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/5930d71.pdfIn PDF document text
    • http://ita-bio.space/27730119207sehnv.pdfIn PDF document text
    • http://cparta.moscow/32080648836rgc7q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419849/normal_5fe1c3121e0d8.pdfIn PDF document text
    • https://nokaroropufut.weebly.com/uploads/1/3/1/4/131453144/latel-denerofob.pdfIn PDF document text
    • https://mokaredoraxo.weebly.com/uploads/1/3/4/0/134095924/biwezisigu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389585/normal_6035ddcb2406d.pdfIn PDF document text
    • https://duragafadave.weebly.com/uploads/1/3/1/4/131438389/ximasalatida.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374199/normal_601a8126a28d7.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/free_books_for_kindle_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/safezoxexapediwugirox.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/cain_and_abel_oxid._it.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/98555515419.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/bunezeki.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/horizontal_analysis_balance_sheet.pdfIn PDF document text

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