Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36bc0f624a1a941…

MALICIOUS

PDF

5.4 KB Created: sdtres
MD5: c68701f6cf15dc6dc42a846df2f889d7 SHA-1: b9d77a6659241ee9ec27744006ba82938a9cf2ea SHA-256: b36bc0f624a1a94102e08681165ac1295cfa24e5e7c19c45965a1aeaf656c756
216 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's LibTIFF component. This vulnerability allows for arbitrary code execution when the PDF is opened. ClamAV detections confirm the presence of this specific exploit. No document body text or scripts were extracted, but the exploit itself is sufficient evidence of malicious intent.

Heuristics 6

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0011.bin
48e0413b04ff2b0e337a7b0471852c82a35fcd972138a63fcde522b6e5406a3d
pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x435 32563 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: unlikely