Malicious PDF — malware analysis report

Static analysis result for SHA-256 e28f4453fc85a98c…

MALICIOUS

PDF

5.9 KB Created: 2013-04-29 11:13:02
MD5: 00357f7ce8a16f6e8c9e93d907ae07ed SHA-1: 30767efe0376c655b1b87ad87b5ec6ebdacfc630 SHA-256: e28f4453fc85a98c4e6bb0fdef8f5bfe871015e859774e3fe8bb17a572a9faff
218 Risk Score

Malware Insights

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

The PDF file contains a critical exploit for CVE-2010-0188, targeting Adobe Reader's XFA form handling. This exploit is designed to decompress and execute a payload embedded within the PDF. ClamAV also detected the embedded artifact as Pdf.Exploit.CVE_2010_0188-10, confirming the malicious nature of the file. The primary attack vector is the exploitation of this known vulnerability.

Heuristics 7

  • 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.
  • ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
e71bdd390375508a0708601b1a941034777c9fede8bed77c6fbfcd495390cc14
pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x431 78846 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s).