Malicious PDF — malware analysis report

Static analysis result for SHA-256 cef7cef5720e942b…

MALICIOUS

PDF

5.0 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob
MD5: 6a48564fe3222e8c71213637ffcce5bc SHA-1: 6e68c519d3f359c55b5059e5d561cb06df65c280 SHA-256: cef7cef5720e942b27b959db4543366cf369f5b78181208c819ebacd2fc2dfbd
98 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload that leverages the CVE-2010-0188 exploit. This exploit targets a vulnerability in Adobe Reader related to LibTIFF XFA images. The embedded file, 'embedded_file_obj0008.bin', is likely the secondary payload downloaded and executed by the exploit. The document body is minimal and does not provide further context on the lure.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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
15400e45c28d591ec739c885fa46f52d278ed2d579ea74b5fa6ad39dc628cd94
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x337 48186 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).