Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6e7a10c99aac40…

MALICIOUS

PDF

2.7 KB Created: 5370-01-01 Authoring application: 3200
MD5: 6f69213d8251b58df1a5e2655f978b6b SHA-1: f12e1f4b62202e12e58a2e3e7a2e80d041e42a5c SHA-256: 8b6e7a10c99aac40088cce7bdf71c8580a6d5dfd905ace7aca033cf7a7a70dbd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests a known exploit. The extracted JavaScript artifact shows signs of obfuscation, typical of malware attempting to hide its malicious actions. The primary function appears to be executing a malicious script, likely to download and run a second-stage payload.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0013_001.js
90a2ad7e7e5c743a0adbdc65b3179716bca11b880aaa0b7a801f528c89778d2c
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4797 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).