Malicious PDF — malware analysis report

Static analysis result for SHA-256 93a8e1d52e22aff9…

MALICIOUS

PDF

113.1 KB
MD5: 6831a7494082e0d9247fa34858e31535 SHA-1: 43f96e1e8b4add0ccc6c979b8347b70b08e1d8d9 SHA-256: 93a8e1d52e22aff94e5400e60c7375765fdcaa7996b87504198254cd16f29928
78 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image processing. This suggests the document is designed to execute malicious code upon opening. An embedded file was also detected, which is often used to deliver secondary payloads. The exact nature of the payload cannot be determined from the provided evidence, but the exploit itself is the primary attack vector.

Heuristics 4

  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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
embedded_file_obj0001.bin
a217de210d07754b4933c9f4d61c4348f82f599e1eb97277dc22b1e85dc9668a
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13454 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).