Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fe89fbb2dad9746…

MALICIOUS

PDF

4.4 KB
MD5: b0fae5063d4d808b4ce24e8ecb7e8ce2 SHA-1: b3d02f6216a5690e29fb22f68e4d5d21b6184b7e SHA-256: 4fe89fbb2dad97463c7827a669e9744f2320a7618efd8db21ae0ea439231e18d
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, targeting Adobe Reader's LibTIFF component. The presence of XFA forms and the use of ASCIIHexDecode and ASCII85Decode filters further suggest an exploit attempt. The primary goal is likely to achieve code execution for downloading and running a subsequent stage. No specific 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
d3eed05a0218cd1afbb423e7955937b1ae7849f596dce4328fdc8f64e776625e
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).