Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a59a30550340975…

MALICIOUS

PDF

37.8 KB Created: 2010-04-15 23:47:22 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))
MD5: 5ab2016a791bba8de65d822760d1c893 SHA-1: 23508aedc0966e88253ad3f57d2c79b38588cc29 SHA-256: 4a59a30550340975cc7f5ffd76d5821f30680b9108b71d4d7b75d3fe6e1d0e01
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-22949' strongly suggests this JavaScript is used for exploitation. The document body text is heavily corrupted and unreadable, providing no contextual clues. The primary attack vector appears to be leveraging a PDF vulnerability to execute arbitrary code, likely for further payload delivery.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-22949 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-22949
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT
    Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0010_000.js
bcaeaf99b8dcaf831b8e22de7a48a120d55f4c6c099e72966258841a19b5e1eb		 pdf-javascript-stream PDF /JS object 10 at offset 0x8CE0 1346 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.