Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7db489ee2534858…

MALICIOUS

PDF

5.5 KB
MD5: 6ef0cd38252ea4b3c2c996142d280607 SHA-1: 40674ecd906e68e83d2ef5a7ba7e459b5bb03dc3 SHA-256: d7db489ee253485875f8982fd8a9ecbbe325a9ecd5c85778a66184373322c155
218 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1559.001 Component Object Model Hijacking

The PDF file contains an embedded exploit targeting CVE-2010-0188, a known vulnerability in Adobe Reader's handling of LibTIFF XFA images. This exploit is designed to execute arbitrary code, likely to download and run a second-stage payload. The ClamAV detection confirms the presence of this specific exploit. No document body text was available for analysis, but the exploit itself is sufficient evidence of malicious intent.

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
d6961c70a1fdd5cc04f94d81a91c2993d973aaf7f7e9d01dc2da7f35393f05f9
pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x413 38794 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).