Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e5832ee2ca68d4…

MALICIOUS

PDF

4.4 KB
MD5: accd47a2886d521c4dde364108115e41 SHA-1: 646ffb5a436bdd59800095c6f85a4f3ff0573519 SHA-256: 34e5832ee2ca68d4a16954988ba4980d178697316918df912c5792ac7891cc25
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, indicating it's designed to execute arbitrary code upon opening in a vulnerable Adobe Reader version. The exploit targets a vulnerability in LibTIFF processing within Adobe Reader. No document body text was available for further analysis of the lure, but the critical heuristic confirms exploitation.

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
1bf0cb55d1ec631d1efc0d9e7b794bf8e85438343411c448e419fd1bfcf1d284
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).