Malicious PDF — malware analysis report

Static analysis result for SHA-256 83dc4de9c62f4073…

MALICIOUS

PDF

5.5 KB
MD5: 6148569fd12dd2f2049ac3dc59328528 SHA-1: 8d59b4ad26add2da87322c02dc6345db3e402191 SHA-256: 83dc4de9c62f40737e6f8a2e897968418a143fd4be192a9ccf3a34c1a0721211
218 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The PDF file contains an embedded artifact and triggers critical heuristics for CVE-2010-0188, indicating it exploits a known vulnerability in Adobe Reader. The embedded file is likely the secondary payload delivered by the exploit. The ClamAV detection further confirms the malicious nature of the file.

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
66fb2232b10f7bdca547c25b34eb2b3ef8f875dd497314e7ea82c9d29f18b595
pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x413 33516 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).