Malicious PDF — malware analysis report

Static analysis result for SHA-256 a183e8cbf731ec9e…

MALICIOUS

PDF

1.5 KB
MD5: ba396b9259299e3c34c4fe47c18ef126 SHA-1: 3e453fdbbc9880f2215436100636d2f16db9ed00 SHA-256: a183e8cbf731ec9e6bd456efea4eaa53b87a2068ee7365b7dcdc263186b6dc9e
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains embedded Flash content (RichMedia) and uses JavaScript actions, indicating an attempt to exploit vulnerabilities. The ASCIIHexDecode filter further suggests obfuscation commonly used in exploits. The embedded file name 'WGuAULiUrCKU.swf' is likely the malicious Flash payload. No specific family is identifiable from the provided heuristics.

Heuristics 5

  • RichMedia (Flash) high PDF_RICHMEDIA
    PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload