Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4e80b7b47890650…

MALICIOUS

PDF

90.6 KB
MD5: 18ee4fa72495ae3e48a513f1b84c34d1 SHA-1: 3d7f200324d91f40daaceb9763aa4cd02ed7b2dd SHA-256: e4e80b7b4789065097b3ca371b1c68074999544ce731d7485b626705eb79f903
100 Risk Score

Malware Insights

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

The PDF file is identified as malicious due to heuristics indicating a launch action and encryption with JavaScript, suggesting a hidden payload. The 'PDF_IMAGE_LURE' heuristic further points to a phishing tactic where a visual lure conceals a clickable element. The encrypted nature and presence of a launch action strongly suggest the document is designed to download and execute a second-stage payload.

Heuristics 3

  • Launch action high PDF_LAUNCH
    PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
  • Encrypted PDF carries /OpenAction — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JS
    PDF declares /Encrypt and also references an executable trigger (/OpenAction). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 90 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.