Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9525d1a0868ea3c…

MALICIOUS

PDF

5.3 KB
MD5: 9c07f146aaaa01c5d81f928c815b42f3 SHA-1: 713e0cebcd5947b35d46b41d6368d9572e06eeff SHA-256: b9525d1a0868ea3c4c18e81c5d6c095515585eb2a6aed0249a2785d680f3b8a5
218 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1204.001 Malicious Link

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader. Static analysis detected an XFA form and an embedded script payload, both indicative of exploit delivery. ClamAV signatures confirm the presence of the Pdf.Exploit.CVE_2010_0188-10 malware. The embedded artifact, embedded_file_obj0008.bin, is likely the secondary payload.

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_obj0008.bin
c8894e8cb9ee7bf3fbdd285c07f70191e611e4b1b841d8732cfff26543a065e7
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x407 30825 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).