Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b87f9ef8cab6c5c…

MALICIOUS

PDF

5.3 KB Created: 2004-05-02 19:56:00 Authoring application: u
MD5: 4d830d49e7b15c5709eb91f403535598 SHA-1: 3a6cc1e497dd76290da28eccf23d6fc924076223 SHA-256: 7b87f9ef8cab6c5cc33153b25c177ed22243fb775439f48aa0d311f79c9bf657
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF document contains an embedded JavaScript file that exploits CVE-2010-0188 in Adobe Reader. The embedded script is likely intended to download and execute a second-stage payload. The document body appears to be malformed or contains artifacts from the PDF creation process rather than user-facing content.

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.
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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
stream_002_off00000328.js
88dde14bd3a98044bf8609d3c35783166a0210e6e7541163122290f2e62cd390
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x328 61338 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).