Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e2fe8b0fe7e7d0…

MALICIOUS

PDF

4.4 KB
MD5: d22f9b0b3b74f8ea19c145ca25bb8cab SHA-1: 0c2935ebc6bc9cbda73deaca3018bb3f0edb373b SHA-256: 76e2fe8b0fe7e7d00962d9e53ba05f492ffc59ba7ce9ec2035b7c29d96c76ef8
98 Risk Score

Malware Insights

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

The PDF file contains critical heuristic firings indicating the use of the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The presence of XFA forms and encoded data further supports this. The exploit is designed to achieve arbitrary code execution, which is typically used to download and run a second-stage malicious 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
704a5c2a2d188028b43b0c3eee2d8c7dd22b74ae942fcba1922d95a2cef60b3b
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).