Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba39c22bed9ebb9…

MALICIOUS

PDF

51.1 KB Created: 2020-12-26 01:51:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 65309b4038069a5482f57075c95dacd0 SHA-1: b2041250214fd80725f42a09959cbb058e142b6e SHA-256: 2ba39c22bed9ebb973ee736f0e17c2ab90f45ca2557bb73671953b665ca4e913
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6410

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://traffking.ru/strik?utm_term=very+awesome+live+wallpapers+iphone PDF link annotation
    • https://fepuvagugi.weebly.com/uploads/1/3/4/7/134767339/1232226.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391047/normal_5fc901bc8b3b7.pdfIn PDF document text
    • https://xurafexejigaf.weebly.com/uploads/1/3/4/5/134588012/75144cd2571c.pdfIn PDF document text
    • https://cdn.sqhk.co/dofewijoras/cXTKibe/henry_survival_rifle._22._410.pdfIn PDF document text
    • https://xefujalebide.weebly.com/uploads/1/3/2/6/132681694/serododunumiguk_tajunek_jumenujuvar.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/awaiting_you_myths_and_hymns.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/runixesetubivewemupatil.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/nikobin.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/maths_riddles_ks3_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/introducing_applied_linguistics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dadf139b-e657-41bd-b5d6-b1d4dd678df6/death_of_a_salesman_biff_american_dream_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/8040865489.pdfIn PDF document text

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