Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c53e0e7bdab4b6b…

MALICIOUS

PDF

2.7 KB Created: 5042-01-01 Authoring application: 6489
MD5: 3538b57183d76c02d5cad278f24ce9b4 SHA-1: 8f1b6f69b23ffb74a1ea58fbce70614911de5b1b SHA-256: 2c53e0e7bdab4b6ba1d4c035b35e3b5d43b63894148a24e10dd1d6db16cd5c89
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 including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-36014' confirms its malicious nature. The embedded JavaScript file 'javascript_obj0013_001.js' is likely responsible for the exploit, potentially downloading and executing a second-stage payload. The document body contains obfuscated data, further suggesting malicious intent.

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
85f1582d685752c3a3efcb1b01aeaf5bc18b2d4dbabfd9eceb9a1d98923f0d2c
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4796 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).