Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf1319ef31528d80…

MALICIOUS

PDF

4.4 KB
MD5: 3dc69fa86e9ac10a9da7b07101ed2dc0 SHA-1: a5c26f1cdc4b2813989d6016cb55b2c552f20f4d SHA-256: bf1319ef31528d80e2fec02a3564860ee3febe25b7659ee140b615bc9161fdc8
98 Risk Score

Malware Insights

The PDF file contains an XFA form and triggers the CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the exploitation of PDF vulnerabilities. The embedded artifact 'stream_000_off00000207.bin' likely contains the malicious payload delivered by the exploit.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • 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_000_off00000207.bin
628e0a54e46a703977f086a01342291229c2dbd8029fb74deb98739b55dd9ed5
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x207 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).