Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb3281a6c81531a3…

MALICIOUS

PDF

3.8 KB Authoring application: val
MD5: d700d4378b64d65c652e467fa3cf1d67 SHA-1: 9213bbc0c78d95421326aa73a9d27b1ed7b86a43 SHA-256: fb3281a6c81531a30c15f191267afb3fff2572f29016a8f52aae815e4355e8b7
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. This exploit allows for arbitrary code execution, likely to download and run a second-stage payload. The embedded file artifact further suggests the delivery of additional malicious content.

Heuristics 5

  • 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.
  • 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_obj0041.bin
5ab74a2c606e62a63160a94a119300bf10e060b2eb6ac7b2ead7ae121420fde1
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9746 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).