Malicious PDF — malware analysis report

Static analysis result for SHA-256 d434435fac03bd45…

MALICIOUS

PDF

4.4 KB
MD5: e4d24c42964713c3cdc7246c6340eacf SHA-1: 1a4691f9f41268b2aed431cdf0fbdb49e82f155b SHA-256: d434435fac03bd45236bd1575233ee6eb74c9a7fd8339fddfa48207b46f0c830
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code. The exploit targets a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The presence of ASCIIHexDecode and ASCII85Decode filters further suggests obfuscation of malicious content within the PDF structure. No specific malware family could be identified from the static analysis.

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
fc037f5d050cae2c8402f573e92fb4e98f03ec7dc6789255d4358c6ecd060653
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).