Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe8c64cd64b28ab0…

MALICIOUS

PDF

7.6 KB Created: 2012-04-27 17:25:24
MD5: 5265868b981a7e07a694fa1fe2cfe67a SHA-1: 5342da6fe365c1483cc35d91c85adfb9394aa07a SHA-256: fe8c64cd64b28ab04638c01e293c509234d3186740fa132c5e82932947fc1b48
98 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The file is a PDF document identified by ClamAV as Pdf.Exploit.Dropped-156969-1. Static analysis revealed an embedded script payload and an embedded file, indicating the document is designed to exploit a vulnerability and drop a secondary payload. The document body contains seemingly random text, suggesting it is not intended for direct user consumption but rather to obscure the malicious 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_obj0010.bin
e054c36f050557cf24f9e4b7c255a5d47f1f33bf2310c1795cd9b91baeb748d5
pdf-embedded-file PDF EmbeddedFile object 10 at offset 0xCB8 7229 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 long base64-like blob(s).