Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66406059551b008…

MALICIOUS

PDF

4.4 KB
MD5: 8c0636431d9bfdc3fdbc3ac118ea0fcb SHA-1: f42c96d5caee5ab6c376a6470f3449efc8263e93 SHA-256: c66406059551b0084c9bb01b5347ae024c5ee5e4501cccd65c0ed565cc727d9c
98 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link T1204.002 Malicious Applet

The PDF file contains an XFA form and triggers the CVE-2010-0188 critical heuristic, indicating it exploits a vulnerability in Adobe Reader related to LibTIFF and XFA images. The exploit is embedded within an XFA image payload. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the exploitation attempt.

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_off000001f9.bin
c1e68863a9313a6b427e2e326ed5cb91a53b90046877e5b7a783bdb52cf70233
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1F9 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).