Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd79c7c85f31716a…

MALICIOUS

PDF

5.7 KB Created: 2012-06-11 17:19:01 Authoring application: arcare godgoo
MD5: fd301361619bb41c5e38636001168b67 SHA-1: 1ff859ae6e3c0808c35d6dac4acbe8a7400dfa92 SHA-256: bd79c7c85f31716a169bd7fe4c73fa43b94737aea920f15554e3dbe0a7319fb8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter T1059.001 PowerShell

The PDF file contains an embedded JavaScript payload triggered by the CVE-2010-0188 exploit targeting Adobe Reader. The heuristic 'CVE_2010_0188' directly indicates this exploit. The embedded JavaScript file 'stream_002_off00000336.js' is the likely second-stage payload. The document body appears to be obfuscated or contains non-readable data, but the exploit and embedded script are clear indicators of malicious intent.

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_off00000336.js
19500696698abb15b8c8dd3ad0d7379537d1574af25caa9fc4530988c6c13d61
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x336 90119 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s).