Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda7b286bdc52df4…

MALICIOUS

PDF

234.8 KB Created: 2021-04-04 21:20:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c64604d462ae9e8f483f828a181761ee SHA-1: 9b60c2f08ae86bb8b5cb8a873ab3e8d545abb9ab SHA-256: eda7b286bdc52df41281efc46b76f0116c1990120f0cf808d43659bf5d6c3996
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a website that claims to offer hacks for in-game currency, which is a common phishing lure. ClamAV also detected this file as 'Pdf.Phishing.Roblox062100-9873116-0', further indicating a phishing attempt. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0491

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://gaminggenerator.org/app/431946152/hack-para-tener-dinero-en-roblox PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000356e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356E6 21848 bytes
SHA-256: ab37f90a48c0637aff61923df46a1a7746f03e34fe29460154ad332578961fb7
font_01_sfnt_off000386df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x386DF 18160 bytes
SHA-256: a3f40eabbe8fe1a6f252294dbeacb9287c963f77e23dce71ff42acb9da19afba

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