Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2e52ba9ea41847…

MALICIOUS

PDF

7.7 KB Created: 2012-04-06 19:15:32
MD5: 8be7608f7ee32690553b2be0b6b219af SHA-1: 4fe18f63388f588f174293605be43679ad272380 SHA-256: 2f2e52ba9ea41847d41c163c04baed64aa1c07971e9c7724983e33270017c6ff
98 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Dropped-156969-1. Static analysis revealed embedded content, including a script payload within a PDF stream, indicating an attempt to exploit vulnerabilities. The presence of an embedded file further supports the malicious nature of the document, likely serving as a dropper for secondary malware.

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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
embedded_file_obj0010.bin
e1506aa1b942e322a6e29ac8b5a9b8ebd6ee86d98879102a1ce277f0499ae4c4
pdf-embedded-file PDF EmbeddedFile object 10 at offset 0xC8A 6998 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 long base64-like blob(s).