Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1e7e5c13eb19546…

MALICIOUS

PDF

2.7 KB Created: 1973-01-01 Authoring application: 1419
MD5: 8973b2be10083b0a6e95ea362389dc44 SHA-1: 425fe12ca64426f072cd337f1e7b67fe46fa2349 SHA-256: c1e7e5c13eb19546dc2abaf90c3fbd46352d82c7c20c63d93483d8f7d8a25f17
96 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted javascript file. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests it's a known exploit. The JavaScript is likely used to deliver a second-stage payload, although its exact function is not detailed in the provided evidence. The file's metadata and size are not indicative of typical user documents.

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
dfc95396a631b5bdf7256ac472cefcaf304c3d6dce43b3b9332208e2d786a53e
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4804 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).