Malicious PDF — malware analysis report

Static analysis result for SHA-256 262f1262bf58ff24…

MALICIOUS

PDF

6.4 KB
MD5: 71f898e20a694a6f10e5be58fcb0b6cc SHA-1: 9f28dbdda2676de3607b6a4c9af425a5b265de79 SHA-256: 262f1262bf58ff240354a6fe45a5ae25d98142169b30fe5c52eee1eff7ec353d
178 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2009-0927 (Collab.getIcon). This indicates the file is designed to exploit this vulnerability. The embedded JavaScript stream, identified as 'javascript_obj0006_000.js', is likely responsible for the malicious payload delivery. The ClamAV detection further supports its malicious nature.

Heuristics 6

  • Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927
    PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
  • 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.
  • Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0006_000.js
c9da5bc4905f766868d430af20b6d411d87c3bf89b0d32378f72db7dfc13fbd6
pdf-javascript-stream PDF /JS object 6 at offset 0x193 5425 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).