Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a8001bcc6d27fd…

MALICIOUS

PDF

4.4 KB
MD5: a3ef8a03edfdea3d74314fd5889fbd52 SHA-1: cad54a690e0056861e10d14545ae17a062640cb8 SHA-256: d4a8001bcc6d27fd71e5620b3ae385536d2efe76b0e4e3e4320c2c1c3d26bfed
98 Risk Score

Malware Insights

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

The PDF file contains indicators of the CVE-2010-0188 exploit, specifically targeting Adobe Reader's LibTIFF component. The presence of XFA forms and encoded data within the PDF stream further supports this. The exploit likely leads to the execution of a secondary payload, although the specific nature of that payload cannot be determined from the provided 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_off000001f9.bin
84d40e0e6c21b9b9caac4709cfb890caa9f7f8ff7d57f0c4bf8dd30088e24202
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).