Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e1e2e02ee40a51…

MALICIOUS

PDF

7.2 KB Created: 2012-04-21 19:58:55
MD5: 46ea44594e7e389bcf9e52f67f7e924b SHA-1: 615282dcd25ef9d6c5ee75ec47b54d8c7a85d4f7 SHA-256: 76e1e2e02ee40a51733ecb9bbee0eca58ab53415028e57c66d675ece888defd0
98 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The critical ClamAV detection indicates this PDF exploits a known vulnerability. The PDF contains embedded script content and an embedded file, suggesting it's designed to download and execute a second-stage payload. The document body text is largely nonsensical, further supporting a malicious intent rather than legitimate content.

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_obj0006.bin
20e2ed3ebd27e79e733dff32ea72010f1af5153dc00489374b8a25182b892625
pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x9D0 7172 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 long base64-like blob(s).