Malicious PDF — malware analysis report

Static analysis result for SHA-256 984fdf1e7c564036…

MALICIOUS

PDF

2.6 KB
MD5: f4c89404662a5b5a487ed96e639c73e4 SHA-1: 55c93015b130aeff98b2b4528230c8f41f7febf0 SHA-256: 984fdf1e7c56403665f6aebe3cf8ff61dd6a8cd11bbe1222dc4d24dc5e34bd02
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form with a critical heuristic firing for CVE-2010-0188, indicating exploitation of a vulnerability in Adobe Reader. This exploit is designed to execute arbitrary code, likely leading to the download and execution of a second-stage payload, as suggested by the 'Pdf.Exploit.Dropped-90' ClamAV detection and the presence of an embedded file.

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.
  • ClamAV: Pdf.Exploit.Dropped-90 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
  • 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
26dd54b2381dc1d9bcf71b0c1643c7f4b03a12f83d2b77489249a50e9ebe22fc
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13415 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).