Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c4df5e36146a85…

MALICIOUS

PDF

28.5 KB Authoring application: Mobipocket Creator
MD5: b4cb30d8d22fee37e60ea6362c792eb0 SHA-1: ba2bb341066130bd95dae863664a019433114841 SHA-256: 14c4df5e36146a8517ef2d279e885b672a5cb84fd881de93f97f5a2d6db236ac
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by multiple detection engines, including ClamAV and an ML classifier. It contains embedded URLs that likely lead to the download of a secondary malicious payload. The presence of these URLs suggests an attempt to deliver malware via a spearphishing attachment, a common tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7846712-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7846712-0
  • 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 http://balloonsoverbranson.com/uploads/1/3/0/2/130274076/f280e523355.pdf
    • http://pak.88ground.com/uploads/2020/01/29/5d6360fc9eefe.pdf
    • http://seacoast-technologies.com/uploads/1/3/0/6/130640114/2783028.pdf
    • http://artofhostingns.ca/uploads/1/3/0/7/130775259/130775259.html#fpdf+write+html+line+height

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010e6.bin
4d1ac4603261b4d23570d199a7d00fdb0a2a9f61a7a944d37f1287121b23f95a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E6 7264 bytes

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