Malicious PDF — malware analysis report

Static analysis result for SHA-256 224b771de35c64a9…

MALICIOUS

PDF

4.4 KB
MD5: 543d68479edc3d214d2c5d318909a670 SHA-1: b45bebc833c846408e4676a9ebf862ce39d45c68 SHA-256: 224b771de35c64a946d04cec87c7932a24e8d65001f425188e9897feced16b46
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains indicators of the CVE-2010-0188 exploit, which targets Adobe Reader's LibTIFF component. The presence of XFA forms and the use of ASCIIHexDecode and ASCII85Decode filters further suggest an exploit attempt. The decompressed stream likely contains the shellcode for the exploit, which would typically be used to download and execute a second-stage payload.

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
d5fa5c20f084d266ef665faf76a58f01c6b7d6c7e16f61b537e60f5cd3030d02
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).