Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ab85d1f5330abf…

MALICIOUS

PDF

4.4 KB
MD5: 4f9a06d42394febac5e91acc128b129f SHA-1: 7909b03f9556c27f8892c417075cb6bb99a361f0 SHA-256: 45ab85d1f5330abf65b4ae82f3e7158d3df7d936394a3b658ad4d8b94ae124a8
98 Risk Score

Malware Insights

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

The PDF file contains indicators of exploitation for CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF processing. The presence of XFA forms and the use of ASCIIHexDecode and ASCII85Decode filters further support this. The exploit likely aims to download and execute a secondary payload, as suggested by the heuristic 'Suspicious extracted artifact'. No specific malware family could be identified.

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
3f064386de07b7098e7b8128cb8007e034bebf6f53e95cb40f30579ffdc5e190
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).