Malicious PDF — malware analysis report

Static analysis result for SHA-256 f866765e416dcb6c…

MALICIOUS

PDF

5.3 KB
MD5: bb7b7576633f9f1c7fd8b1ae808f17f0 SHA-1: 023ab56a96d8395332b2def8e3d8fb3488f6dd3e SHA-256: f866765e416dcb6cef86fb485cb63c192d18dbbc9a37ca7e611f6d15a9f07e4a
218 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains an embedded artifact that triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a known Adobe Reader vulnerability. ClamAV also detected the file as Pdf.Exploit.CVE_2010_0188-10. The embedded file itself was also flagged by ClamAV as suspicious. The document body content is not human-readable and appears to be malformed data.

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
14f4a6d432a7b277333347d81a5ee79186948ac5e01b8d93636fbc2b54b7dbda
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x406 30632 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).