Malicious PDF — malware analysis report

Static analysis result for SHA-256 db870aa74c199ca3…

MALICIOUS

PDF

4.4 KB
MD5: 3625183934f4df204567a91f54de2635 SHA-1: f27513885e91dd71974395ac3b44db99e695bc67 SHA-256: db870aa74c199ca32ef3e83daa3058e728d03ee5f8a16346bba342f043e157c8
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an XFA form and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The exploit is embedded within an XFA image/tif payload. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the exploitation attempt. No document body text was available for analysis, but the critical heuristic strongly suggests the file's purpose is to exploit this known vulnerability.

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
aec4893fd7309fd0d806c52ed75da1d3e3220e6c7daf61599b6ec723c06db12d
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).