Malicious PDF — malware analysis report

Static analysis result for SHA-256 226cf742eb9b9361…

MALICIOUS

PDF

4.4 KB
MD5: 48685f815008ecdea6d738d2ee508b6f SHA-1: 3b3096d5a420042b05d83dff23852fddcdcc4f11 SHA-256: 226cf742eb9b9361f94f0911cc05dc2f170aefba4525fe02af4d24e7a199d62b
98 Risk Score

Malware Insights

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

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, which targets a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. This exploit is designed for client-side code execution. The presence of ASCIIHexDecode and ASCII85Decode filters further indicates obfuscation commonly used in exploit delivery. No scripts were extracted, but the exploit itself is the primary indicator of malicious intent.

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
1deeb7def5cb3b17d165f5c24bec6d0ab6476d39dbc1844b043415349d112e29
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).