Malicious PDF — malware analysis report

Static analysis result for SHA-256 467ec163a855e1fb…

MALICIOUS

PDF

4.4 KB
MD5: ea1f94f4cdf1d726a6fd152ccf3dc038 SHA-1: 7ebebba55964805e80c5b088d8fd988ad5433ca6 SHA-256: 467ec163a855e1fb91e6ed9d1fea96ef54bc3c2ef6b40e681b5a2966c6d6d5e5
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit related to LibTIFF processing within Adobe Reader. The exploit is embedded within an XFA image and delivered via ASCIIHexDecode and ASCII85Decode filters. This indicates the file is designed to exploit a known vulnerability for initial execution. No specific malware family could be identified.

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
3566d689c9c003c13f8a020f577e125e0e67c60162bd38eae5224f64b90f88df
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).