Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c69ce4e3d67c94…

MALICIOUS

PDF

7.6 KB Created: 2012-04-17 19:53:38
MD5: 667d27e205a588c6dc3355bdfcb8cbd7 SHA-1: 35cc8136798175c7f20c923e60c5801c2af5ed8b SHA-256: 53c69ce4e3d67c9443af613740f7238911018770f5994cdf71e42c6993f9f15d
98 Risk Score

Malware Insights

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

The critical ClamAV heuristic 'Pdf.Exploit.Dropped-156969-1' strongly indicates this PDF is malicious and designed to exploit vulnerabilities. The presence of an embedded script payload further supports this, suggesting the PDF is a dropper for a secondary malicious file. The document body contains obfuscated text, likely to hide malicious intent.

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_obj0008.bin
992b37cd5fca69a417b4ac62f2c073ed7b50c68f64a0ffe113ccb45b9b3206c4
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xBAF 7163 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 long base64-like blob(s).